# G. Montagna - conveners

## Contact Details

NameG. Montagna |
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Affiliationconveners |
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CityBrechin |
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CountryUnited Kingdom |
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## Pubs By Year |
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## External Links |
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## Pub CategoriesHigh Energy Physics - Phenomenology (44) High Energy Physics - Experiment (20) Physics - Physics and Society (4) Physics - Other (1) Physics - Data Analysis; Statistics and Probability (1) Physics - Statistical Mechanics (1) High Energy Astrophysical Phenomena (1) |

## Publications Authored By G. Montagna

We study the indirect effects of New Physics in the Higgs decay into four charged leptons, using an Effective Field Theory (EFT) approach to Higgs interactions. We evaluate the deviations induced by the EFT dimension-six operators in observables like partial decay width and various kinematic distributions, including angular observables, and compare them with the contribution of the full SM electroweak corrections. The calculation is implemented in an improved version of the event generator Hto4l, which can provide predictions in terms of different EFT-bases and is available for data analysis at the LHC. Read More

We perform a comprehensive analysis of electroweak, QED and mixed QCD-electroweak corrections underlying the precise measurement of the W-boson mass M_W at hadron colliders. By applying a template fitting technique, we detail the impact on M_W of next-to-leading order electroweak and QCD corrections, multiple photon emission, lepton pair radiation and factorizable QCD-electroweak contributions. As a by-product, we provide an up-to-date estimate of the main theoretical uncertainties of perturbative nature. Read More

**Authors:**D. de Florian

^{1}, C. Grojean

^{2}, F. Maltoni

^{3}, C. Mariotti

^{4}, A. Nikitenko

^{5}, M. Pieri

^{6}, P. Savard

^{7}, M. Schumacher

^{8}, R. Tanaka

^{9}, R. Aggleton

^{10}, M. Ahmad

^{11}, B. Allanach

^{12}, C. Anastasiou

^{13}, W. Astill

^{14}, S. Badger

^{15}, M. Badziak

^{16}, J. Baglio

^{17}, E. Bagnaschi

^{18}, A. Ballestrero

^{19}, A. Banfi

^{20}, D. Barducci

^{21}, M. Beckingham

^{22}, C. Becot

^{23}, G. Bélanger

^{24}, J. Bellm

^{25}, N. Belyaev

^{26}, F. U. Bernlochner

^{27}, C. Beskidt

^{28}, A. Biekötter

^{29}, F. Bishara

^{30}, W. Bizon

^{31}, N. E. Bomark

^{32}, M. Bonvini

^{33}, S. Borowka

^{34}, V. Bortolotto

^{35}, S. Boselli

^{36}, F. J. Botella

^{37}, R. Boughezal

^{38}, G. C. Branco

^{39}, J. Brehmer

^{40}, L. Brenner

^{41}, S. Bressler

^{42}, I. Brivio

^{43}, A. Broggio

^{44}, H. Brun

^{45}, G. Buchalla

^{46}, C. D. Burgard

^{47}, A. Calandri

^{48}, L. Caminada

^{49}, R. Caminal Armadans

^{50}, F. Campanario

^{51}, J. Campbell

^{52}, F. Caola

^{53}, C. M. Carloni Calame

^{54}, S. Carrazza

^{55}, A. Carvalho

^{56}, M. Casolino

^{57}, O. Cata

^{58}, A. Celis

^{59}, F. Cerutti

^{60}, N. Chanon

^{61}, M. Chen

^{62}, X. Chen

^{63}, B. Chokoufé Nejad

^{64}, N. Christensen

^{65}, M. Ciuchini

^{66}, R. Contino

^{67}, T. Corbett

^{68}, D. Curtin

^{69}, M. Dall'Osso

^{70}, A. David

^{71}, S. Dawson

^{72}, J. de Blas

^{73}, W. de Boer

^{74}, P. de Castro Manzano

^{75}, C. Degrande

^{76}, R. L. Delgado

^{77}, F. Demartin

^{78}, A. Denner

^{79}, B. Di Micco

^{80}, R. Di Nardo

^{81}, S. Dittmaier

^{82}, A. Dobado

^{83}, T. Dorigo

^{84}, F. A. Dreyer

^{85}, M. Dührssen

^{86}, C. Duhr

^{87}, F. Dulat

^{88}, K. Ecker

^{89}, K. Ellis

^{90}, U. Ellwanger

^{91}, C. Englert

^{92}, D. Espriu

^{93}, A. Falkowski

^{94}, L. Fayard

^{95}, R. Feger

^{96}, G. Ferrera

^{97}, A. Ferroglia

^{98}, N. Fidanza

^{99}, T. Figy

^{100}, M. Flechl

^{101}, D. Fontes

^{102}, S. Forte

^{103}, P. Francavilla

^{104}, E. Franco

^{105}, R. Frederix

^{106}, A. Freitas

^{107}, F. F. Freitas

^{108}, F. Frensch

^{109}, S. Frixione

^{110}, B. Fuks

^{111}, E. Furlan

^{112}, S. Gadatsch

^{113}, J. Gao

^{114}, Y. Gao

^{115}, M. V. Garzelli

^{116}, T. Gehrmann

^{117}, R. Gerosa

^{118}, M. Ghezzi

^{119}, D. Ghosh

^{120}, S. Gieseke

^{121}, D. Gillberg

^{122}, G. F. Giudice

^{123}, E. W. N. Glover

^{124}, F. Goertz

^{125}, D. Gonçalves

^{126}, J. Gonzalez-Fraile

^{127}, M. Gorbahn

^{128}, S. Gori

^{129}, C. A. Gottardo

^{130}, M. Gouzevitch

^{131}, P. Govoni

^{132}, D. Gray

^{133}, M. Grazzini

^{134}, N. Greiner

^{135}, A. Greljo

^{136}, J. Grigo

^{137}, A. V. Gritsan

^{138}, R. Gröber

^{139}, S. Guindon

^{140}, H. E. Haber

^{141}, C. Han

^{142}, T. Han

^{143}, R. Harlander

^{144}, M. A. Harrendorf

^{145}, H. B. Hartanto

^{146}, C. Hays

^{147}, S. Heinemeyer

^{148}, G. Heinrich

^{149}, M. Herrero

^{150}, F. Herzog

^{151}, B. Hespel

^{152}, V. Hirschi

^{153}, S. Hoeche

^{154}, S. Honeywell

^{155}, S. J. Huber

^{156}, C. Hugonie

^{157}, J. Huston

^{158}, A. Ilnicka

^{159}, G. Isidori

^{160}, B. Jäger

^{161}, M. Jaquier

^{162}, S. P. Jones

^{163}, A. Juste

^{164}, S. Kallweit

^{165}, A. Kaluza

^{166}, A. Kardos

^{167}, A. Karlberg

^{168}, Z. Kassabov

^{169}, N. Kauer

^{170}, D. I. Kazakov

^{171}, M. Kerner

^{172}, W. Kilian

^{173}, F. Kling

^{174}, K. Köneke

^{175}, R. Kogler

^{176}, R. Konoplich

^{177}, S. Kortner

^{178}, S. Kraml

^{179}, C. Krause

^{180}, F. Krauss

^{181}, M. Krawczyk

^{182}, A. Kulesza

^{183}, S. Kuttimalai

^{184}, R. Lane

^{185}, A. Lazopoulos

^{186}, G. Lee

^{187}, P. Lenzi

^{188}, I. M. Lewis

^{189}, Y. Li

^{190}, S. Liebler

^{191}, J. Lindert

^{192}, X. Liu

^{193}, Z. Liu

^{194}, F. J. Llanes-Estrada

^{195}, H. E. Logan

^{196}, D. Lopez-Val

^{197}, I. Low

^{198}, G. Luisoni

^{199}, P. Maierhöfer

^{200}, E. Maina

^{201}, B. Mansoulié

^{202}, H. Mantler

^{203}, M. Mantoani

^{204}, A. C. Marini

^{205}, V. I. Martinez Outschoorn

^{206}, S. Marzani

^{207}, D. Marzocca

^{208}, A. Massironi

^{209}, K. Mawatari

^{210}, J. Mazzitelli

^{211}, A. McCarn

^{212}, B. Mellado

^{213}, K. Melnikov

^{214}, S. B. Menari

^{215}, L. Merlo

^{216}, C. Meyer

^{217}, P. Milenovic

^{218}, K. Mimasu

^{219}, S. Mishima

^{220}, B. Mistlberger

^{221}, S. -O. Moch

^{222}, A. Mohammadi

^{223}, P. F. Monni

^{224}, G. Montagna

^{225}, M. Moreno Llácer

^{226}, N. Moretti

^{227}, S. Moretti

^{228}, L. Motyka

^{229}, A. Mück

^{230}, M. Mühlleitner

^{231}, S. Munir

^{232}, P. Musella

^{233}, P. Nadolsky

^{234}, D. Napoletano

^{235}, M. Nebot

^{236}, C. Neu

^{237}, M. Neubert

^{238}, R. Nevzorov

^{239}, O. Nicrosini

^{240}, J. Nielsen

^{241}, K. Nikolopoulos

^{242}, J. M. No

^{243}, C. O'Brien

^{244}, T. Ohl

^{245}, C. Oleari

^{246}, T. Orimoto

^{247}, D. Pagani

^{248}, C. E. Pandini

^{249}, A. Papaefstathiou

^{250}, A. S. Papanastasiou

^{251}, G. Passarino

^{252}, B. D. Pecjak

^{253}, M. Pelliccioni

^{254}, G. Perez

^{255}, L. Perrozzi

^{256}, F. Petriello

^{257}, G. Petrucciani

^{258}, E. Pianori

^{259}, F. Piccinini

^{260}, M. Pierini

^{261}, A. Pilkington

^{262}, S. Plätzer

^{263}, T. Plehn

^{264}, R. Podskubka

^{265}, C. T. Potter

^{266}, S. Pozzorini

^{267}, K. Prokofiev

^{268}, A. Pukhov

^{269}, I. Puljak

^{270}, M. Queitsch-Maitland

^{271}, J. Quevillon

^{272}, D. Rathlev

^{273}, M. Rauch

^{274}, E. Re

^{275}, M. N. Rebelo

^{276}, D. Rebuzzi

^{277}, L. Reina

^{278}, C. Reuschle

^{279}, J. Reuter

^{280}, M. Riembau

^{281}, F. Riva

^{282}, A. Rizzi

^{283}, T. Robens

^{284}, R. Röntsch

^{285}, J. Rojo

^{286}, J. C. Romão

^{287}, N. Rompotis

^{288}, J. Roskes

^{289}, R. Roth

^{290}, G. P. Salam

^{291}, R. Salerno

^{292}, R. Santos

^{293}, V. Sanz

^{294}, J. J. Sanz-Cillero

^{295}, H. Sargsyan

^{296}, U. Sarica

^{297}, P. Schichtel

^{298}, J. Schlenk

^{299}, T. Schmidt

^{300}, C. Schmitt

^{301}, M. Schönherr

^{302}, U. Schubert

^{303}, M. Schulze

^{304}, S. Sekula

^{305}, M. Sekulla

^{306}, E. Shabalina

^{307}, H. S. Shao

^{308}, J. Shelton

^{309}, C. H. Shepherd-Themistocleous

^{310}, S. Y. Shim

^{311}, F. Siegert

^{312}, A. Signer

^{313}, J. P. Silva

^{314}, L. Silvestrini

^{315}, M. Sjodahl

^{316}, P. Slavich

^{317}, M. Slawinska

^{318}, L. Soffi

^{319}, M. Spannowsky

^{320}, C. Speckner

^{321}, D. M. Sperka

^{322}, M. Spira

^{323}, O. Stål

^{324}, F. Staub

^{325}, T. Stebel

^{326}, T. Stefaniak

^{327}, M. Steinhauser

^{328}, I. W. Stewart

^{329}, M. J. Strassler

^{330}, J. Streicher

^{331}, D. M. Strom

^{332}, S. Su

^{333}, X. Sun

^{334}, F. J. Tackmann

^{335}, K. Tackmann

^{336}, A. M. Teixeira

^{337}, R. Teixeira de Lima

^{338}, V. Theeuwes

^{339}, R. Thorne

^{340}, D. Tommasini

^{341}, P. Torrielli

^{342}, M. Tosi

^{343}, F. Tramontano

^{344}, Z. Trócsányi

^{345}, M. Trott

^{346}, I. Tsinikos

^{347}, M. Ubiali

^{348}, P. Vanlaer

^{349}, W. Verkerke

^{350}, A. Vicini

^{351}, L. Viliani

^{352}, E. Vryonidou

^{353}, D. Wackeroth

^{354}, C. E. M. Wagner

^{355}, J. Wang

^{356}, S. Wayand

^{357}, G. Weiglein

^{358}, C. Weiss

^{359}, M. Wiesemann

^{360}, C. Williams

^{361}, J. Winter

^{362}, D. Winterbottom

^{363}, R. Wolf

^{364}, M. Xiao

^{365}, L. L. Yang

^{366}, R. Yohay

^{367}, S. P. Y. Yuen

^{368}, G. Zanderighi

^{369}, M. Zaro

^{370}, D. Zeppenfeld

^{371}, R. Ziegler

^{372}, T. Zirke

^{373}, J. Zupan

^{374}

**Affiliations:**

^{1}eds.,

^{2}eds.,

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^{10}The LHC Higgs Cross Section Working Group,

^{11}The LHC Higgs Cross Section Working Group,

^{12}The LHC Higgs Cross Section Working Group,

^{13}The LHC Higgs Cross Section Working Group,

^{14}The LHC Higgs Cross Section Working Group,

^{15}The LHC Higgs Cross Section Working Group,

^{16}The LHC Higgs Cross Section Working Group,

^{17}The LHC Higgs Cross Section Working Group,

^{18}The LHC Higgs Cross Section Working Group,

^{19}The LHC Higgs Cross Section Working Group,

^{20}The LHC Higgs Cross Section Working Group,

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^{22}The LHC Higgs Cross Section Working Group,

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^{24}The LHC Higgs Cross Section Working Group,

^{25}The LHC Higgs Cross Section Working Group,

^{26}The LHC Higgs Cross Section Working Group,

^{27}The LHC Higgs Cross Section Working Group,

^{28}The LHC Higgs Cross Section Working Group,

^{29}The LHC Higgs Cross Section Working Group,

^{30}The LHC Higgs Cross Section Working Group,

^{31}The LHC Higgs Cross Section Working Group,

^{32}The LHC Higgs Cross Section Working Group,

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^{316}The LHC Higgs Cross Section Working Group,

^{317}The LHC Higgs Cross Section Working Group,

^{318}The LHC Higgs Cross Section Working Group,

^{319}The LHC Higgs Cross Section Working Group,

^{320}The LHC Higgs Cross Section Working Group,

^{321}The LHC Higgs Cross Section Working Group,

^{322}The LHC Higgs Cross Section Working Group,

^{323}The LHC Higgs Cross Section Working Group,

^{324}The LHC Higgs Cross Section Working Group,

^{325}The LHC Higgs Cross Section Working Group,

^{326}The LHC Higgs Cross Section Working Group,

^{327}The LHC Higgs Cross Section Working Group,

^{328}The LHC Higgs Cross Section Working Group,

^{329}The LHC Higgs Cross Section Working Group,

^{330}The LHC Higgs Cross Section Working Group,

^{331}The LHC Higgs Cross Section Working Group,

^{332}The LHC Higgs Cross Section Working Group,

^{333}The LHC Higgs Cross Section Working Group,

^{334}The LHC Higgs Cross Section Working Group,

^{335}The LHC Higgs Cross Section Working Group,

^{336}The LHC Higgs Cross Section Working Group,

^{337}The LHC Higgs Cross Section Working Group,

^{338}The LHC Higgs Cross Section Working Group,

^{339}The LHC Higgs Cross Section Working Group,

^{340}The LHC Higgs Cross Section Working Group,

^{341}The LHC Higgs Cross Section Working Group,

^{342}The LHC Higgs Cross Section Working Group,

^{343}The LHC Higgs Cross Section Working Group,

^{344}The LHC Higgs Cross Section Working Group,

^{345}The LHC Higgs Cross Section Working Group,

^{346}The LHC Higgs Cross Section Working Group,

^{347}The LHC Higgs Cross Section Working Group,

^{348}The LHC Higgs Cross Section Working Group,

^{349}The LHC Higgs Cross Section Working Group,

^{350}The LHC Higgs Cross Section Working Group,

^{351}The LHC Higgs Cross Section Working Group,

^{352}The LHC Higgs Cross Section Working Group,

^{353}The LHC Higgs Cross Section Working Group,

^{354}The LHC Higgs Cross Section Working Group,

^{355}The LHC Higgs Cross Section Working Group,

^{356}The LHC Higgs Cross Section Working Group,

^{357}The LHC Higgs Cross Section Working Group,

^{358}The LHC Higgs Cross Section Working Group,

^{359}The LHC Higgs Cross Section Working Group,

^{360}The LHC Higgs Cross Section Working Group,

^{361}The LHC Higgs Cross Section Working Group,

^{362}The LHC Higgs Cross Section Working Group,

^{363}The LHC Higgs Cross Section Working Group,

^{364}The LHC Higgs Cross Section Working Group,

^{365}The LHC Higgs Cross Section Working Group,

^{366}The LHC Higgs Cross Section Working Group,

^{367}The LHC Higgs Cross Section Working Group,

^{368}The LHC Higgs Cross Section Working Group,

^{369}The LHC Higgs Cross Section Working Group,

^{370}The LHC Higgs Cross Section Working Group,

^{371}The LHC Higgs Cross Section Working Group,

^{372}The LHC Higgs Cross Section Working Group,

^{373}The LHC Higgs Cross Section Working Group,

^{374}The LHC Higgs Cross Section Working Group

This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016. The main goal of the working group was to present the state-of-the-art of Higgs physics at the LHC, integrating all new results that have appeared in the last few years. The first part compiles the most up-to-date predictions of Higgs boson production cross sections and decay branching ratios, parton distribution functions, and off-shell Higgs boson production and interference effects. Read More

We propose a new experiment to measure the running of the fine-structure constant in the space-like region by scattering high-energy muons on atomic electrons of a low-Z target through the process $\mu e \to \mu e$. The differential cross section of this process, measured as a function of the squared momentum transfer $t=q^2<0$, provides direct sensitivity to the leading-order hadronic contribution to the muon anomaly $a^{\rm{HLO}}_{\mu}$. By using a muon beam of 150 GeV, with an average rate of $\sim1. Read More

**Authors:**R. Baldini Ferroli, F. De Mori, M. Destefanis, M. Maggiora, S. Pacetti, L. Yan, M. Bertani, A. Calcaterra, G. Felici, P. Patteri, Y. D. Wang, A. Zallo, D. Bettoni, G. Cibinetto, R. Farinelli, E. Fioravanti, I. Garzia, G. Mezzadri, V. Santoro, M. Savrié, F. Bianchi, M. Greco, S. Marcello, S. Spataro, C. M. Carloni Calame, G. Montagna, O. Nicrosini, F. Piccinini

**Category:**High Energy Physics - Phenomenology

The $J/\psi$ meson has negative $G$-parity so that, in the limit of isospin conservation, its decay into $\pi^+\pi^-$ should be purely electromagnetic. However, the measured branching fraction $\mathcal{B}(J/\psi\to\pi^+\pi^-)$ exceeds by more than 3.9 standard deviations the expectation computed according to BaBar data on the $e^+e^-\to\pi^+\pi^-$ cross section. Read More

**Authors:**M. L. Mangano, G. Zanderighi, J. A. Aguilar Saavedra, S. Alekhin, S. Badger, C. W. Bauer, T. Becher, V. Bertone, M. Bonvini, S. Boselli, E. Bothmann, R. Boughezal, M. Cacciari, C. M. Carloni Calame, F. Caola, J. M. Campbell, S. Carrazza, M. Chiesa, L. Cieri, F. Cimaglia, F. Febres Cordero, P. Ferrarese, D. D'Enterria, G. Ferrera, X. Garcia i Tormo, M. V. Garzelli, E. Germann, V. Hirschi, T. Han, H. Ita, B. Jäger, S. Kallweit, A. Karlberg, S. Kuttimalai, F. Krauss, A. J. Larkoski, J. Lindert, G. Luisoni, P. Maierhöfer, O. Mattelaer, H. Martinez, S. Moch, G. Montagna, M. Moretti, P. Nason, O. Nicrosini, C. Oleari, D. Pagani, A. Papaefstathiou, F. Petriello, F. Piccinini, M. Pierini, T. Pierog, S. Pozzorini, E. Re, T. Robens, J. Rojo, R. Ruiz, K. Sakurai, G. P. Salam, L. Salfelder, M. Schönherr, M. Schulze, S. Schumann, M. Selvaggi, A. Shivaji, A. Siodmok, P. Skands, P. Torrielli, F. Tramontano, I. Tsinikos, B. Tweedie, A. Vicini, S. Westhoff, M. Zaro, D. Zeppenfeld

This report summarises the properties of Standard Model processes at the 100 TeV pp collider. We document the production rates and typical distributions for a number of benchmark Standard Model processes, and discuss new dynamical phenomena arising at the highest energies available at this collider. We discuss the intrinsic physics interest in the measurement of these Standard Model processes, as well as their role as backgrounds for New Physics searches. Read More

**Authors:**S. Alioli, A. B. Arbuzov, D. Yu. Bardin, L. Barze, C. Bernaciak, S. G. Bondarenko, C. Carloni Calame, M. Chiesa, S. Dittmaier, G. Ferrera, D. de Florian, M. Grazzini, S. Hoeche, A. Huss, S. Jadach, L. V. Kalinovskaya, A. Karlberg, F. Krauss, Y. Li, H. Martinez, G. Montagna, A. Mueck, P. Nason, O. Nicrosini, F. Petriello, F. Piccinini, W. Placzek, S. Prestel, E. Re, A. A. Sapronov, M. Schoenherr, C. Schwinn, A. Vicini, D. Wackeroth, Z. Was, G. Zanderighi

This report was prepared in the context of the LPCC "Electroweak Precision Measurements at the LHC WG" and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the Drell-Yan processes at hadron colliders, in particular at the CERN Large Hadron Collider (LHC). This work represents an important step towards the definition of an accurate simulation framework necessary for very high-precision measurements of electroweak (EW) observables such as the $W$ boson mass and the weak mixing angle. All the codes considered in this report share at least next-to-leading-order (NLO) accuracy in the prediction of the total cross sections in an expansion either in the strong or in the EW coupling constant. Read More

**Authors:**S. Badger

^{1}, J. Bendavid

^{2}, V. Ciulli

^{3}, A. Denner

^{4}, R. Frederix

^{5}, M. Grazzini

^{6}, J. Huston

^{7}, M. Schönherr

^{8}, K. Tackmann

^{9}, J. Thaler

^{10}, C. Williams

^{11}, J. R. Andersen, K. Becker, M. Bell, J. Bellm, E. Bothmann, R. Boughezal, J. Butterworth, S. Carrazza, M. Chiesa, L. Cieri, M. Duehrssen-Debling, G. Falmagne, S. Forte, P. Francavilla, M. Freytsis, J. Gao, P. Gras, N. Greiner, D. Grellscheid, G. Heinrich, G. Hesketh, S. Höche, L. Hofer, T. -J. Hou, A. Huss, J. Isaacson, A. Jueid, S. Kallweit, D. Kar, Z. Kassabov, V. Konstantinides, F. Krauss, S. Kuttimalai, A. Lazapoulos, P. Lenzi, Y. Li, J. M. Lindert, X. Liu, G. Luisoni, L. Lönnblad, P. Maierhöfer, D. Maître, A. C. Marini, G. Montagna, M. Moretti, P. M. Nadolsky, G. Nail, D. Napoletano, O. Nicrosini, C. Oleari, D. Pagani, C. Pandini, L. Perrozzi, F. Petriello, F. Piccinini, S. Plätzer, I. Pogrebnyak, S. Pozzorini, S. Prestel, C. Reuschle, J. Rojo, L. Russo, P. Schichtel, S. Schumann, A. Siódmok, P. Skands, D. Soper, G. Soyez, P. Sun, F. J. Tackmann, E. Takasugi, S. Uccirati, U. Utku, L. Viliani, E. Vryonidou, B. T. Wang, B. Waugh, M. A. Weber, J. Winter, K. P. Xie, C. -P. Yuan, F. Yuan, K. Zapp, M. Zaro

**Affiliations:**

^{1}conveners,

^{2}conveners,

^{3}conveners,

^{4}conveners,

^{5}conveners,

^{6}conveners,

^{7}conveners,

^{8}conveners,

^{9}conveners,

^{10}conveners,

^{11}conveners

**Category:**High Energy Physics - Phenomenology

This Report summarizes the proceedings of the 2015 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments relevant for high precision Standard Model calculations, (II) the new PDF4LHC parton distributions, (III) issues in the theoretical description of the production of Standard Model Higgs bosons and how to relate experimental measurements, (IV) a host of phenomenological studies essential for comparing LHC data from Run I with theoretical predictions and projections for future measurements in Run II, and (V) new developments in Monte Carlo event generators. Read More

This Report summarizes the results of the activities in 2014 of the Standard Model Working Group within the workshop "What Next" of INFN. We present a framework, general questions, and some indications of possible answers on the main issue for Standard Model physics in the LHC era and in view of possible future accelerators. Read More

In view of precision studies of the Higgs sector at the Run II of the LHC, the improvement of the accuracy of the theoretical prediction is becoming a pressing issue. In this framework, we detail a calculation of the full Next-to-Leading Order (NLO) electroweak corrections to Higgs boson decay into four charged leptons, by considering the gold-plated channel H -> Z(*) Z(*) -> 2l 2l', l,l' = e, mu. We match the NLO corrections with a QED Parton Shower (PS), in order to simulate exclusive multiple photon emission and provide novel results at NLOPS electroweak accuracy. Read More

We detail a calculation of W gamma production in hadronic collision, at Next-to-Leading Order (NLO) QCD interfaced to a shower generator according to the POWHEG prescription supplemented with the MiNLO procedure. The fixed order result is matched to an interleaved QCD+QED parton shower, in such a way that the contribution arising from hadron fragmentation into photons is fully modeled. In general, our calculation illustrates a new approach to the fully exclusive simulation of prompt photon production processes accurate at the NLO level in QCD. Read More

**Authors:**J. Butterworth

^{1}, G. Dissertori

^{2}, S. Dittmaier

^{3}, D. de Florian

^{4}, N. Glover

^{5}, K. Hamilton

^{6}, J. Huston

^{7}, M. Kado

^{8}, A. Korytov

^{9}, F. Krauss

^{10}, G. Soyez

^{11}, J. R. Andersen

^{12}, S. Badger

^{13}, L. Barzè

^{14}, J. Bellm

^{15}, F. U. Bernlochner

^{16}, A. Buckley

^{17}, J. Butterworth

^{18}, N. Chanon

^{19}, M. Chiesa

^{20}, A. Cooper-Sarkar

^{21}, L. Cieri

^{22}, G. Cullen

^{23}, H. van Deurzen

^{24}, G. Dissertori

^{25}, S. Dittmaier

^{26}, D. de Florian

^{27}, S. Forte

^{28}, R. Frederix

^{29}, B. Fuks

^{30}, J. Gao

^{31}, M. V. Garzelli

^{32}, T. Gehrmann

^{33}, E. Gerwick

^{34}, S. Gieseke

^{35}, D. Gillberg

^{36}, E. W. N. Glover

^{37}, N. Greiner

^{38}, K. Hamilton

^{39}, T. Hapola

^{40}, H. B. Hartanto

^{41}, G. Heinrich

^{42}, A. Huss

^{43}, J. Huston

^{44}, B. Jäger

^{45}, M. Kado

^{46}, A. Kardos

^{47}, U. Klein

^{48}, F. Krauss

^{49}, A. Kruse

^{50}, L. Lönnblad

^{51}, G. Luisoni

^{52}, Daniel Maître

^{53}, P. Mastrolia

^{54}, O. Mattelaer

^{55}, J. Mazzitelli

^{56}, E. Mirabella

^{57}, P. Monni

^{58}, G. Montagna

^{59}, M. Moretti

^{60}, P. Nadolsky

^{61}, P. Nason

^{62}, O. Nicrosini

^{63}, C. Oleari

^{64}, G. Ossola

^{65}, S. Padhi

^{66}, T. Peraro

^{67}, F. Piccinini

^{68}, S. Plätzer

^{69}, S. Prestel

^{70}, J. Pumplin

^{71}, K. Rabbertz

^{72}, Voica Radescu

^{73}, L. Reina

^{74}, C. Reuschle

^{75}, J. Rojo

^{76}, M. Schönherr

^{77}, J. M. Smillie

^{78}, J. F. von Soden-Fraunhofen

^{79}, G. Soyez

^{80}, R. Thorne, F. Tramontano, Z. Trocsanyi, D. Wackeroth, J. Winter, C-P. Yuan, V. Yundin, K. Zapp

**Affiliations:**

^{1}conveners,

^{2}conveners,

^{3}conveners,

^{4}conveners,

^{5}conveners,

^{6}conveners,

^{7}conveners,

^{8}conveners,

^{9}conveners,

^{10}conveners,

^{11}conveners,

^{12}conveners,

^{13}conveners,

^{14}conveners,

^{15}conveners,

^{16}conveners,

^{17}conveners,

^{18}conveners,

^{19}conveners,

^{20}conveners,

^{21}conveners,

^{22}conveners,

^{23}conveners,

^{24}conveners,

^{25}conveners,

^{26}conveners,

^{27}conveners,

^{28}conveners,

^{29}conveners,

^{30}conveners,

^{31}conveners,

^{32}conveners,

^{33}conveners,

^{34}conveners,

^{35}conveners,

^{36}conveners,

^{37}conveners,

^{38}conveners,

^{39}conveners,

^{40}conveners,

^{41}conveners,

^{42}conveners,

^{43}conveners,

^{44}conveners,

^{45}conveners,

^{46}conveners,

^{47}conveners,

^{48}conveners,

^{49}conveners,

^{50}conveners,

^{51}conveners,

^{52}conveners,

^{53}conveners,

^{54}conveners,

^{55}conveners,

^{56}conveners,

^{57}conveners,

^{58}conveners,

^{59}conveners,

^{60}conveners,

^{61}conveners,

^{62}conveners,

^{63}conveners,

^{64}conveners,

^{65}conveners,

^{66}conveners,

^{67}conveners,

^{68}conveners,

^{69}conveners,

^{70}conveners,

^{71}conveners,

^{72}conveners,

^{73}conveners,

^{74}conveners,

^{75}conveners,

^{76}conveners,

^{77}conveners,

^{78}conveners,

^{79}conveners,

^{80}conveners

**Category:**High Energy Physics - Phenomenology

This Report summarizes the proceedings of the 2013 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt primarily with (1) the techniques for calculating standard model multi-leg NLO and NNLO QCD and NLO EW cross sections and (2) the comparison of those cross sections with LHC data from Run 1, and projections for future measurements in Run 2. Read More

**Authors:**J. M. Campbell, K. Hatakeyama, J. Huston, F. Petriello, J. Andersen, L. Barze, H. Beauchemin, T. Becher, M. Begel, A. Blondel, G. Bodwin, R. Boughezal, S. Carrazza, M. Chiesa, G. Dissertori, S. Dittmaier, G. Ferrera, S. Forte, N. Glover, T. Hapola, A. Huss, X. Garcia i Tormo, M. Grazzini, S. Hoche, P. Janot, T. Kasprzik, M. Klein, U. Klein, D. Kosower, Y. Li, X. Liu, P. Mackenzie, D. Maitre, E. Meoni, K. Mishra, G. Montagna, M. Moretti, P. Nadolsky, O. Nicrosini, F. Piccinini, L. Reina, V. Radescu, J. Rojo, J. Russ, S. Sapeta, A. Schwartzman, P. Skands, J. Smillie, I. W. Stewart, F. J. Tackmann, F. Tramontano, R. Van de Water, J. R. Walsh, S. Zuberi

**Category:**High Energy Physics - Phenomenology

This is the summary report of the energy frontier QCD working group prepared for Snowmass 2013. We review the status of tools, both theoretical and experimental, for understanding the strong interactions at colliders. We attempt to prioritize important directions that future developments should take. Read More

**Authors:**M. Bicer, H. Duran Yildiz, I. Yildiz, G. Coignet, M. Delmastro, T. Alexopoulos, C. Grojean, S. Antusch, T. Sen, H. -J. He, K. Potamianos, S. Haug, A. Moreno, A. Heister, V. Sanz, G. Gomez-Ceballos, M. Klute, M. Zanetti, L. -T. Wang, M. Dam, C. Boehm, N. Glover, F. Krauss, A. Lenz, M. Syphers, C. Leonidopoulos, V. Ciulli, P. Lenzi, G. Sguazzoni, M. Antonelli, M. Boscolo, U. Dosselli, O. Frasciello, C. Milardi, G. Venanzoni, M. Zobov, J. van der Bij, M. de Gruttola, D. -W. Kim, M. Bachtis, A. Butterworth, C. Bernet, C. Botta, F. Carminati, A. David, D. d'Enterria, L. Deniau, G. Ganis, B. Goddard, G. Giudice, P. Janot, J. M. Jowett, C. Lourenco, L. Malgeri, E. Meschi, F. Moortgat, P. Musella, J. A. Osborne, L. Perrozzi, M. Pierini, L. Rinolfi, A. de Roeck, J. Rojo, G. Roy, A. Sciaba, A. Valassi, C. S. Waaijer, J. Wenninger, H. Woehri, F. Zimmermann, A. Blondel, M. Koratzinos, P. Mermod, Y. Onel, R. Talman, E. Castaneda Miranda, E. Bulyak, D. Porsuk, D. Kovalskyi, S. Padhi, P. Faccioli, J. R. Ellis, M. Campanelli, Y. Bai, M. Chamizo, R. B. Appleby, H. Owen, H. Maury Cuna, C. Gracios, G. A. Munoz-Hernandez, L. Trentadue, E. Torrente-Lujan, S. Wang, D. Bertsche, A. Gramolin, V. Telnov, M. Kado, P. Petroff, P. Azzi, O. Nicrosini, F. Piccinini, G. Montagna, F. Kapusta, S. Laplace, W. da Silva, N. Gizani, N. Craig, T. Han, C. Luci, B. Mele, L. Silvestrini, M. Ciuchini, R. Cakir, R. Aleksan, F. Couderc, S. Ganjour, E. Lancon, E. Locci, P. Schwemling, M. Spiro, C. Tanguy, J. Zinn-Justin, S. Moretti, M. Kikuchi, H. Koiso, K. Ohmi, K. Oide, G. Pauletta, R. Ruiz de Austri, M. Gouzevitch, S. Chattopadhyay

The discovery by the ATLAS and CMS experiments of a new boson with mass around 125 GeV and with measured properties compatible with those of a Standard-Model Higgs boson, coupled with the absence of discoveries of phenomena beyond the Standard Model at the TeV scale, has triggered interest in ideas for future Higgs factories. A new circular e+e- collider hosted in a 80 to 100 km tunnel, TLEP, is among the most attractive solutions proposed so far. It has a clean experimental environment, produces high luminosity for top-quark, Higgs boson, W and Z studies, accommodates multiple detectors, and can reach energies up to the t-tbar threshold and beyond. Read More

We present a survey of the most abundant processes at the LHC for sensitivity to electroweak corrections at \sqrt{s} = 8, 14, 33, and 100 TeV proton-proton collision energies. The processes studied are pp -> dijet, inclusive W and Z, W/Z+jets, and WW. In each case we compare the experimental uncertainty in the highest kinematic regions of interest with the relative magnitude of electroweak corrections and fixed-order \alpha_S calculations. Read More

We compute the one-loop electroweak Sudakov corrections to the production process Z (nu bar{nu}) + n jets, with n = 1,2,3, in p p collisions at the LHC. It represents the main irreducible background to new physics searches at the energy frontier. The results are obtained at the leading and next-to-leading logarithmic accuracy by implementing the general algorithm of Denner-Pozzorini in the event generator for multiparton processes ALPGEN. Read More

Following recent work on the combination of electroweak and strong radiative corrections to single W-boson hadroproduction in the POWHEG BOX framework, we generalize the above treatment to cover the neutral current Drell-Yan process. According to the POWHEG method, we combine both the next-to-leading order (NLO) electroweak and QED multiple photon corrections with the native NLO and Parton Shower QCD contributions. We show comparisons with the predictions of the electroweak generator HORACE, to validate the reliability and accuracy of the approach. Read More

We present a fully consistent implementation of electroweak and strong radiative corrections to single W hadroproduction in the POWHEG BOX framework, treating soft and collinear photon emissions on the same ground as coloured parton emissions. This framework can be easily extended to more complex electroweak processes. We describe how next-to-leading order (NLO) electroweak corrections are combined with the NLO QCD calculation, and show how they are interfaced to QCD and QED shower Monte Carlo. Read More

We provide an exact calculation of next-to-next-to-leading order (NNLO) massive corrections to Bhabha scattering in QED, relevant for precision luminosity monitoring at meson factories. Using realistic reference event selections, exact numerical results for leptonic and hadronic corrections are given and compared with the corresponding approximate predictions of the event generator BabaYaga@NLO. It is shown that the NNLO massive corrections are necessary for luminosity measurements with per mille precision. Read More

**Authors:**C. Carloni Calame, H. Czyz, J. Gluza, M. Gunia, G. Montagna, O. Nicrosini, F. Piccinini, T. Riemann, M. Worek

Virtual fermionic N_f = 1 and N_f = 2 contributions to Bhabha scattering are combined with realistic real corrections at next-to-next-to-leading order in QED. The virtual corrections are determined by the package bha_nnlo_hf, and real corrections with the Monte Carlo generators Bhagen-1Ph, Helac-Phegas and Ekhara. Numerical results are discussed at the energies of and with realistic cuts used at the Phi factory DAFNE, at the B factories PEP-II and KEK, and at the charm/tau factory BEPC II. Read More

High-luminosity e+ e- colliders at the GeV scale (flavor factories) have been recently recognized to be an ideal environment to search for a light weakly coupled vector boson U (dark photon) emerging in several new physics models able to interpret anomalous astrophysical observations in terms of dark matter. At flavor factories a particularly clean channel is the production of the U boson in association with a photon, followed by the decay of the U boson into lepton pairs. Beyond the approximations addressed in previous works, we revisit the reach potential of this channel by performing an exact lowest-order calculation of the signal and background processes. Read More

The status and accuracy of the precision Monte Carlo generators used for luminosity measurements at flavour factories is reviewed. It is shown that, thanks to a considerable, long-term effort in tuned comparisons between the predictions of independent programs, as well as in the validation of the generators against the presently available calculations of the next-to-next-to-leading order QED corrections to Bhabha scattering, the theoretical accuracy reached by the most precise tools is of about one per mille. This error estimate is valid for realistic experimental cuts, appears to be quite robust and is already sufficient for very accurate luminosity measurements. Read More

**Authors:**S. Actis, A. Arbuzov, G. Balossini, P. Beltrame, C. Bignamini, R. Bonciani, C. M. Carloni Calame, V. Cherepanov, M. Czakon, H. Czyz, A. Denig, S. Eidelman, G. V. Fedotovich, A. Ferroglia, J. Gluza, A. Grzelinska, M. Gunia, A. Hafner, F. Ignatov, S. Jadach, F. Jegerlehner, A. Kalinowski, W. Kluge, A. Korchin, J. H. Kuhn, E. A. Kuraev, P. Lukin, P. Mastrolia, G. Montagna, S. E. Muller, F. Nguyen, O. Nicrosini, D. Nomura, G. Pakhlova, G. Pancheri, M. Passera, A. Penin, F. Piccinini, W. Placzek, T. Przedzinski, E. Remiddi, T. Riemann, G. Rodrigo, P. Roig, O. Shekhovtsova, C. P. Shen, A. L. Sibidanov, T. Teubner, L. Trentadue, G. Venanzoni, J. J. van der Bij, P. Wang, B. F. L. Ward, Z. Was, M. Worek, C. Z. Yuan

We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on tau decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and tau decays. Read More

We introduce the formalism of generalized Fourier transforms in the context of risk management. We develop a general framework to efficiently compute the most popular risk measures, Value-at-Risk and Expected Shortfall (also known as Conditional Value-at-Risk). The only ingredient required by our approach is the knowledge of the characteristic function describing the financial data in use. Read More

Precision studies of the production of a high-transverse momentum lepton in association with missing energy at hadron colliders require that electroweak and QCD higher-order contributions are simultaneously taken into account in theoretical predictions and data analysis. Here we present a detailed phenomenological study of the impact of electroweak and strong contributions, as well as of their combination, to all the observables relevant for the various facets of the $p\smartpap \to {\rm lepton} + X$ physics programme at hadron colliders, including luminosity monitoring and Parton Distribution Functions constraint, $W$ precision physics and search for new physics signals. We provide a theoretical recipe to carefully combine electroweak and strong corrections, that are mandatory in view of the challenging experimental accuracy already reached at the Fermilab Tevatron and aimed at the CERN LHC, and discuss the uncertainty inherent the combination. Read More

**Authors:**F. Ambroglini, R. Armillis, P. Azzi, G. Bagliesi, A. Ballestrero, G. Balossini, A. Banfi, P. Bartalini, D. Benedetti, G. Bevilacqua, S. Bolognesi, A. Cafarella, C. M. Carloni Calame, L. Carminati, M. Cobal, G. Corcella, C. Coriano', A. Dainese, V. Del Duca, F. Fabbri, M. Fabbrichesi, L. Fano', Alon E. Faraggi, S. Frixione, L. Garbini, A. Giammanco, M. Guzzi, N. Irges, E. Maina, C. Mariotti, G. Masetti, B. Mele, E. Migliore, G. Montagna, M. Monteno, M. Moretti, P. Nason, O. Nicrosini, A. Nisati, A. Perrotta, F. Piccinini, G. Polesello, D. Rebuzzi, A. Rizzi, S. Rolli, C. Roda, S. Rosati, A. Santocchia, D. Stocco, F. Tartarelli, R. Tenchini, A. Tonero, M. Treccani, D. Treleani, A. Tricoli, D. Trocino, L. Vecchi, A. Vicini, I. Vivarelli

**Category:**High Energy Physics - Phenomenology

These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati National Laboratories in 2006. The first part of these proceedings contains pedagogical introductions to several basic topics of both theoretical and experimental high pT LHC physics. The second part collects more specialised presentations. Read More

**Authors:**F. Ambroglini, R. Armillis, P. Azzi, G. Bagliesi, A. Ballestrero, G. Balossini, A. Banfi, P. Bartalini, D. Benedetti, G. Bevilacqua, S. Bolognesi, A. Cafarella, C. M. Carloni Calame, L. Carminati, M. Cobal, G. Corcella, C. Coriano', A. Dainese, V. Del Duca, F. Fabbri, M. Fabbrichesi, L. Fano', Alon E. Faraggi, S. Frixione, L. Garbini, A. Giammanco, M. Grazzini, M. Guzzi, N. Irges, E. Maina, C. Mariotti, G. Masetti, B. Mele, E. Migliore, G. Montagna, M. Monteno, M. Moretti, P. Nason, O. Nicrosini, A. Nisati, A. Perrotta, F. Piccinini, G. Polesello, D. Rebuzzi, A. Rizzi, S. Rolli, C. Roda, S. Rosati, A. Santocchia, D. Stocco, F. Tartarelli, R. Tenchini, A. Tonero, M. Treccani, D. Treleani, A. Tricoli, D. Trocino, L. Vecchi, A. Vicini, I. Vivarelli

**Category:**High Energy Physics - Phenomenology

These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati National Laboratories in 2006. The first part of these proceedings contains pedagogical introductions to several basic topics of both theoretical and experimental high pT LHC physics. The second part collects more specialised presentations. Read More

We review the status of Monte Carlo generators presently used for simulations of the large-angle Bhabha process at electron-positron colliders of moderately high energy (flavour factories), operating at centre-of-mass energies between about 1 GeV and 10 GeV. It is shown how the theoretical accuracy reached by present Bhabha programs for physics at flavour factories is at the level of 0.1% and, therefore, comparable with that reached about a decade ago for luminosity monitoring through small-angle Bhabha scattering at LEP. Read More

The relevance of single-W and single-Z production processes at hadron colliders is well known: in the present paper the status of theoretical calculations of Drell-Yan processes is summarized and some results on the combination of electroweak and QCD corrections to a sample of observables of the process $p p \to W^\pm \to \mu^\pm + X$ at the LHC are discussed. The phenomenological analysis shows that a high-precision knowledge of QCD and a careful combination of electroweak and strong contributions is mandatory in view of the anticipated LHC experimental accuracy. One of the authors (O. Read More

We analyze the problem of the analytical characterization of the probability distribution of financial returns in the exponential Ornstein-Uhlenbeck model with stochastic volatility. In this model the prices are driven by a Geometric Brownian motion, whose diffusion coefficient is expressed through an exponential function of an hidden variable Y governed by a mean-reverting process. We derive closed-form expressions for the probability distribution and its characteristic function in two limit cases. Read More

**Authors:**C. Buttar

^{1}, J. D'Hondt

^{2}, M. Kramer

^{3}, G. Salam

^{4}, M. Wobisch

^{5}, N. E. Adam

^{6}, V. Adler

^{7}, A. Arbuzov

^{8}, D. Bardin

^{9}, U. Baur

^{10}, A. A. Bhatti

^{11}, S. Bondarenko

^{12}, V. Buge

^{13}, J. M. Butterworth

^{14}, M. Cacciari

^{15}, M. Campanelli

^{16}, Q. -H. Cao

^{17}, C. M. Carloni Calame

^{18}, P. Christova

^{19}, D. D'Enterria

^{20}, J. D'Hondt

^{21}, S. Ferrag, K. Geerlings, V. Halyo, M. Heinrich, J. Huston, J. Jackson, B. Jantzen, L. Kalinovskaya, D. Kcira, B. Klein, A. Kulesza, P. Loch, G. Montagna, S. Moretti, D. Newbold, O. Nicrosini, H. Nilsen, A. A. Penin, F. Piccinini, S. Pozzorini, K. Rabbertz, J. Rojo Chacon, R. Sadykov, M. Schulze, C. Shepherd-Themistocleous, A. Sherstnev, P. Z. Skands, L. Sonnenschein, G. Soyez, R. S. Thorne, M. Tytgat, P. Van Mulders, M. Vazquez Acosta, A. Vicini, I. Villella, D. Wackeroth, C. -P. Yuan

**Affiliations:**

^{1}ed.,

^{2}ed.,

^{3}ed.,

^{4}ed.,

^{5}ed.,

^{6}ed.,

^{7}ed.,

^{8}ed.,

^{9}ed.,

^{10}ed.,

^{11}ed.,

^{12}ed.,

^{13}ed.,

^{14}ed.,

^{15}ed.,

^{16}ed.,

^{17}ed.,

^{18}ed.,

^{19}ed.,

^{20}ed.,

^{21}ed.

**Category:**High Energy Physics - Phenomenology

This report summarizes the activity on comparisons of existings tools for the standard model and on issues in jet physics by the SMHC working group during and subsequent to the Workshop "Physics at TeV Colliders", Les Houches, France, 11-29 June, 2007. Read More

We present a high-precision QED calculation, with 0.1% theoretical accuracy, of two photon production in $e^+ e^-$ annihilation, as required by more and more accurate luminosity monitoring at flavour factories. The accuracy of the approach, which is based on the matching of exact next-to-leading order corrections with a QED Parton Shower algorithm, is demonstrated through a detailed analysis of the impact of the various sources of radiative corrections to the experimentally relevant observables. Read More

We present a detailed study of the production of a high transverse-momentum lepton pair at hadron colliders, which includes the exact O(alpha) electroweak corrections properly matched with leading logarithmic effects due to multiple photon emission, as required by the experiments at the Fermilab Tevatron and the CERN LHC. Numerical results for the relevant observables of single Z-boson production at hadron colliders are presented. The impact of the radiative corrections is discussed in detail. Read More

The correlated stochastic volatility models constitute a natural extension of the Black and Scholes-Merton framework: here the volatility is not a constant, but a stochastic process correlated with the price log-return one. At present, several stochastic volatility models are discussed in the literature, differing in the dynamics attached to the volatility. The aim of the present work is to compare the most recent results about three popular models: the Vasicek, Heston and exponential Ornstein-Uhlenbeck models. Read More

We compute, in the MSSM framework, the sum of the one-loop electroweak and of the total QED radiation effects for the process $pp \to t W+X$, initiated by the parton process $bg\to tW$. Combining these terms with the existing NLO calculations of SM and SUSY QCD corrections, we analyze the overall one-loop supersymmetric effects on the partial rates of the process, obtained by integrating the differential cross section up to a final variable invariant mass. We conclude that, for some choices of the SUSY parameters and for relatively small final invariant masses, they could reach the relative ten percent level, possibly relevant for a dedicated experimental effort at LHC. Read More

**Authors:**C. E. Gerber, P. Murat, T. M. P. Tait, D. Wackeroth, A. Arbuzov, D. Bardin, U. Baur, J. A. Benitez, S. Berge, S. Bondarenko, E. E. Boos, M. T. Bowen, R. Brock, V. E. Bunichev, J. Campbell, F. Canelli, Q. -H. Cao, C. M. Carloni Calame, F. Chevallier, P. Christova, C. Ciobanu, S. Dittmaier, L. V. Dudko, S. D. Ellis, A. I. Etienvre, F. Fiedler, A. Garcia-Bellido, A. Giammanco, D. Glenzinski, P. Golonka, C. Hays, S. Jadach, S. Jain, L. Kalinovskaya, M. Kramer, A. Lleres, J. Luck, A. Lucotte, A. Markina, G. Montagna, P. M. Nadolsky, O. Nicrosini, F. I. Olness, W. Placzek, R. Sadykov, V. I. Savrin, R. Schwienhorst, A. V. Sherstnev, S. Slabospitsky, B. Stelzer, M. J. Strassler, Z. Sullivan, F. Tramontano, A. Vicini, W. Wagner, Z. Was, G. Watts, M. Weber, S. Willenbrock, U. K. Yang, C-P. Yuan, J. Zhu

**Category:**High Energy Physics - Phenomenology

The top quark and electroweak bosons (W and Z) represent the most massive fundamental particles yet discovered, and as such refer directly to the Standard Model's greatest remaining mystery: the mechanism by which all particles gained mass. This report summarizes the work done within the top-ew group of the Tevatron-for-LHC workshop. It represents a collection of both Tevatron results, and LHC predictions. Read More

A concise review about the status of the calculation of radiative corrections to the Drell-Yan processes is presented. The effect of matching together exact electroweak O(alpha) corrections with higher-order QED effects due to multiple photon emission is displayed in some physical distributions in the charged current channel, which have obtained with the new version of the event generator HORACE. Read More

A new version of the event generator BABAYAGA is presented, which is based on an original matching of the Parton Shower approach with the complete exact O(alpha) matrix element for the inclusion of the QED radiative corrections to the Bhabha process at flavour factories. The theoretical accuracy of the improved generator is conservatively estimated to be 0.2%, by comparison with independent calculations. Read More

We report on a high-precision calculation of the Bhabha process in QED, of interest for precise luminosity determination of low-energy electron-positron colliders. The calculation is based on the matching of exact next-to-leading order corrections with a Parton Shower algorithm. The structure of the algorithm (implemented in an improved version of the event generator BABAYAGA) is illustrated, with a discussion on the resulting theoretical uncertainty, of the order of 0. Read More

We present a detailed study of the charged current Drell-Yan process, which includes the exact O(alpha) electroweak corrections properly matched with leading-log effects due to multiple-photon emission, as required by the experiments at the Tevatron and the LHC. Numerical results for the relevant observables of single W boson production at hadron colliders are presented. The impact of the radiative corrections and of some sources of theoretical uncertainty is discussed in detail. Read More

Reliable calculations of financial risk require that the fat-tailed nature of prices changes is included in risk measures. To this end, a non-Gaussian approach to financial risk management is presented, modeling the power-law tails of the returns distribution in terms of a Student-$t$ (or Tsallis) distribution. Non-Gaussian closed-form solutions for Value-at-Risk and Expected Shortfall are obtained and standard formulae known in the literature under the normality assumption are recovered as a special case. Read More

**Authors:**G. Balossini

^{1}, C. M. Carloni Calame

^{2}, G. Montagna

^{3}, O. Nicrosini

^{4}, F. Piccinini

^{5}

**Affiliations:**

^{1}Dipartimento di Fisica Nucleare e Teorica, Universita' di Pavia,

^{2}Istituto Nazionale di Fisica Nucleare, Sezione di Pavia,

^{3}Dipartimento di Fisica Nucleare e Teorica, Universita' di Pavia,

^{4}Istituto Nazionale di Fisica Nucleare, Sezione di Pavia,

^{5}Istituto Nazionale di Fisica Nucleare, Sezione di Pavia

We report on a high-precision calculation of the Bhabha process in Quantum Electrodynamics, of interest for precise luminosity determination of electron-positron colliders involved in R measurements in the region of hadronic resonances. The calculation is based on the matching of exact next-to-leading order corrections with a Parton Shower algorithm. The accuracy of the approach is demonstrated in comparison with existing independent calculations and through a detailed analysis of the main components of theoretical uncertainty, including two-loop corrections, hadronic vacuum polarization and light pair contributions. Read More

Reliable calculations of financial risk require that the fat-tailed nature of prices changes is included in risk measures. To this end, a non-Gaussian approach to financial risk management is presented, modeling the power-law tails of the returns distribution in terms of a Student-t distribution. Non-Gaussian closed-form solutions for Value-at-Risk and Expected Shortfall are obtained and standard formulae known in the literature under the normality assumption are recovered as a special case. Read More

**Authors:**C. Buttar, S. Dittmaier, V. Drollinger, S. Frixione, A. Nikitenko, S. Willenbrock S. Abdullin, E. Accomando, D. Acosta, A. Arbuzov, R. D. Ball, A. Ballestrero, P. Bartalini, U. Baur, A. Belhouari, S. Belov, A. Belyaev, D. Benedetti, T. Binoth, S. Bolognesi, S. Bondarenko, E. E. Boos, F. Boudjema, A. Bredenstein, V. E. Bunichev, C. Buttar, J. M. Campbell, C. Carloni Calame, S. Catani, R. Cavanaugh, M. Ciccolini, J. Collins, A. M. Cooper-Sarkar, G. Corcella, S. Cucciarelli, G. Davatz, V. DelDuca, A. Denner, J. D'Hondt, S. Dittmaier, V. Drollinger, A. Drozdetskiy, L. V. Dudko, M. Duehrssen, R. Frazier, S. Frixione, J. Fujimoto, S. Gascon-Shotkin, T. Gehrmann, A. Gehrmann-De Ridder, A. Giammanco, A. -S. Giolo-Nicollerat, E. W. N. Glover, R. M. Godbole, A. Grau, M. Grazzini, J. -Ph. Guillet, A. Gusev, R. Harlander, R. Hegde, G. Heinrich, J. Heyninck, J. Huston, T. Ishikawa, A. Kalinowski, T. Kaneko, K. Kato, N. Kauer, W. Kilgore, M. Kirsanov, A. Korytov, M. Kraemer, A. Kulesza, Y. Kurihara, S. Lehti, L. Magnea, F. Mahmoudi, E. Maina, F. Maltoni, C. Mariotti, B. Mellado, D. Mercier, G. Mitselmakher, G. Montagna, A. Moraes, M. Moretti, S. Moretti, I. Nakano, P. Nason, O. Nicrosini, A. Nikitenko, M. R. Nolten, F. Olness, Yu. Pakhotin, G. Pancheri, F. Piccinini, E. Pilon, R. Pittau, S. Pozzorini, J. Pumplin, W. Quayle, D. A. Ross, R. Sadykov, M. Sandhoff, V. I. Savrin, A. Schmidt, M. Schulze, S. Schumann, B. Scurlock, A. Sherstnev, P. Skands, G. Somogyi, J. Smith, M. Spira, Y. Srivastava, H. Stenzel, Y. Sumino, R. Tanaka, Z. Trocsanyi, S. Tsuno, A. Vicini, D. Wackeroth, M. M. Weber, C. Weiser, S. Willenbrock, S. L. Wu, M. Zanetti

**Category:**High Energy Physics - Phenomenology

This Report summarises the activities of the "SM and Higgs" working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On the one hand, we performed a variety of experimental and theoretical studies on standard candles (such as W, Z, and ttbar production), treating them either as proper signals of known physics, or as backgrounds to unknown physics; we also addressed issues relevant to those non-perturbative or semi-perturbative ingredients, such as Parton Density Functions and Underlying Events, whose understanding will be crucial for a proper simulation of the actual events taking place in the detectors. On the other hand, several channels for the production of the Higgs, or involving the Higgs, have been considered in some detail. Read More

At the LHC a precise measurement of the Higgs boson mass (if discovered), at the level of 0.1-1%, will be possible through the channel g g --> H --> 4l for a wide range of Higgs mass values. To match such an accuracy, the systematic effects induced by QED corrections need to be investigated. Read More

Precision studies of single W and Z production processes at hadron colliders require progress in the calculation of electroweak radiative corrections. To this end, higher-order QED corrections to the neutral-current Drell-Yan process, due to multiple photon radiation in Z leptonic decays, are calculated. Particular attention is paid to the effects induced by such corrections on the experimental observables which are relevant for high-precision measurements of the W-boson mass at the Tevatron Run II and the LHC. Read More

In the framework of Black-Scholes-Merton model of financial derivatives, a path integral approach to option pricing is presented. A general formula to price European path dependent options on multidimensional assets is obtained and implemented by means of various flexible and efficient algorithms. As an example, we detail the cases of Asian, barrier knock out, reverse cliquet and basket call options, evaluating prices and Greeks. Read More

We present the comparisons of two independent Monte Carlo event generators, HORACE and WINHAC, for single-W-boson production in hadronic collisions with multiphoton effects in leptonic W decays. These comparisons were performed first at the parton level with fixed quark-beams energy, and then at the hadron level for proton-proton collisions at the LHC. In general, a good agreement between the two programs has been found. Read More

**Affiliations:**

^{1}INFN, Pavia,

^{2}Pavia U,

^{3}INFN, Pavia,

^{4}INFN, Pavia

**Category:**High Energy Physics - Phenomenology

The program BABAYAGA is an event generator for QED processes at flavour factories, mainly intended for luminosity measurement of e+ e- colliders in the center of mass range 1-10 GeV. Recently, the pi+ pi- channel has been added as well. The relevant (photonic) radiative corrections are simulated by means of a Parton Shower in QED. Read More

**Affiliations:**

^{1}INFN, Pavia,

^{2}INFN, Pavia,

^{3}INFN, Pavia,

^{4}Pavia U

**Category:**High Energy Physics - Phenomenology

At present and future hadron colliders, the precision physics program started in the past will be continued. In particular, a precise determination of the W boson mass will be carried out. This requires the calculation of the radiative corrections and their implementation in Monte Carlo event generators for data analysis. Read More