J. Kunkle - Department of Physics, University of Illinois at Urbana-Champaign

J. Kunkle
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Contact Details

Name
J. Kunkle
Affiliation
Department of Physics, University of Illinois at Urbana-Champaign
City
Urbana
Country
United States

Pubs By Year

Pub Categories

 
High Energy Physics - Experiment (6)
 
Nuclear Experiment (3)
 
Physics - Instrumentation and Detectors (2)
 
High Energy Physics - Phenomenology (2)

Publications Authored By J. Kunkle

Recent measurements of multiboson production from the CMS experiment will be presented, as well as limits on anomalous triple and quartic gauge couplings. Precision measurements of multiboson production allow a basic test of the Standard Model, where higher order QCD and electroweak corrections can be probed. In addition searches of physics beyond the Standard Model in multiboson final states rely on precise determination of the Standard Model multiboson processes. Read More

2013Oct

This report summarizes the work of the Energy Frontier Higgs Boson working group of the 2013 Community Summer Study (Snowmass). We identify the key elements of a precision Higgs physics program and document the physics potential of future experimental facilities as elucidated during the Snowmass study. We study Higgs couplings to gauge boson and fermion pairs, double Higgs production for the Higgs self-coupling, its quantum numbers and $CP$-mixing in Higgs couplings, the Higgs mass and total width, and prospects for direct searches for additional Higgs bosons in extensions of the Standard Model. Read More

We show prospects on a search for invisible decays of a Higgs boson at the Large Hadron Collider (LHC) and High Luminosity LHC (HL-LHC). This search is performed on a Higgs boson produced in association with a Z boson. We expect that the branching ratio of 17-22% (6-14%) could be excluded at 95% confidence level with 300 fb^{-1} (3000 fb^{-1}) of data at sqrt(s)=14 TeV. Read More

We present a detailed report of the method, setup, analysis and results of a precision measurement of the positive muon lifetime. The experiment was conducted at the Paul Scherrer Institute using a time-structured, nearly 100%-polarized, surface muon beam and a segmented, fast-timing, plastic scintillator array. The measurement employed two target arrangements; a magnetized ferromagnetic target with a ~4 kG internal magnetic field and a crystal quartz target in a 130 G external magnetic field. Read More

We report a measurement of the positive muon lifetime to a precision of 1.0 parts per million (ppm); it is the most precise particle lifetime ever measured. The experiment used a time-structured, low-energy muon beam and a segmented plastic scintillator array to record more than 2 x 10^{12} decays. Read More

2009Oct
Affiliations: 1Department of Physics, University of Illinois at Urbana-Champaign, 2Department of Physics, University of Illinois at Urbana-Champaign, 3Department of Physics, University of Illinois at Urbana-Champaign, 4Department of Physics, University of Illinois at Urbana-Champaign, 5Department of Physics, University of Illinois at Urbana-Champaign, 6Department of Physics, University of Illinois at Urbana-Champaign, 7Department of Physics, University of Illinois at Urbana-Champaign, 8Department of Physics, University of Illinois at Urbana-Champaign, 9Department of Physics, Boston University

A compact and fast electromagnetic calorimeter prototype was designed, built, and tested in preparation for a next-generation, high-rate muon g-2 experiment. It uses a simple assembly procedure: alternating layers of 0.5-mm-thick tungsten plates and 0. Read More