D. Boehnlein - Fermilab

D. Boehnlein
Are you D. Boehnlein?

Claim your profile, edit publications, add additional information:

Contact Details

Name
D. Boehnlein
Affiliation
Fermilab
City
Warrenville
Country
United States

Pubs By Year

Pub Categories

 
High Energy Physics - Experiment (17)
 
Physics - Instrumentation and Detectors (6)
 
Physics - Accelerator Physics (6)
 
Nuclear Experiment (4)
 
High Energy Physics - Phenomenology (1)

Publications Authored By D. Boehnlein

2016Dec
Authors: MicroBooNE Collaboration, R. Acciarri, C. Adams, R. An, A. Aparicio, S. Aponte, J. Asaadi, M. Auger, N. Ayoub, L. Bagby, B. Baller, R. Barger, G. Barr, M. Bass, F. Bay, K. Biery, M. Bishai, A. Blake, V. Bocean, D. Boehnlein, V. D. Bogert, T. Bolton, L. Bugel, C. Callahan, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, S. Chappa, H. Chen, K. Chen, C. Y. Chi, C. S. Chiu, E. Church, D. Cianci, G. H. Collin, J. M. Conrad, M. Convery, J. Cornele, P. Cowan, J. I. Crespo-Anadon, G. Crutcher, C. Darve, R. Davis, M. Del Tutto, D. Devitt, S. Duffin, S. Dytman, B. Eberly, A. Ereditato, D. Erickson, L. Escudero Sanchez, J. Esquivel, S. Farooq, J. Farrell, D. Featherston, B. T. Fleming, W. Foreman, A. P. Furmanski, V. Genty, M. Geynisman, D. Goeldi, B. Goff, S. Gollapinni, N. Graf, E. Gramellini, J. Green, A. Greene, H. Greenlee, T. Griffin, R. Grosso, R. Guenette, A. Hackenburg, R. Haenni, P. Hamilton, P. Healey, O. Hen, E. Henderson, J. Hewes, C. Hill, K. Hill, L. Himes, J. Ho, G. Horton-Smith, D. Huffman, C. M. Ignarra, C. James, E. James, J. Jan de Vries, W. Jaskierny, C. M. Jen, L. Jiang, B. Johnson, M. Johnson, R. A. Johnson, B. J. P. Jones, J. Joshi, H. Jostlein, D. Kaleko, L. N. Kalousis, G. Karagiorgi, T. Katori, P. Kellogg, W. Ketchum, J. Kilmer, B. King, B. Kirby, M. Kirby, E. Klein, T. Kobilarcik, I. Kreslo, R. Krull, R. Kubinski, G. Lange, F. Lanni, A. Lathrop, A. Laube, W. M. Lee, Y. Li, D. Lissauer, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, G. Lukhanin, M. Luethi, B. Lundberg, X. Luo, G. Mahler, I. Majoros, D. Makowiecki, A. Marchionni, C. Mariani, D. Markley, J. Marshall, D. A. Martinez Caicedo, K. T. McDonald, D. McKee, A. McLean, J. Mead, V. Meddage, T. Miceli, G. B. Mills, W. Miner, J. Moon, M. Mooney, C. D. Moore, Z. Moss, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, B. Norris, N. Norton, J. Nowak, M. OBoyle, T. Olszanowski, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, R. Pelkey, M. Phipps, S. Pordes, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, V. Radeka, A. Rafique, R. A Rameika, B. Rebel, R. Rechenmacher, S. Rescia, L. Rochester, C. Rudolf von Rohr, A. Ruga, B. Russell, R. Sanders, W. R. Sands III, M. Sarychev, D. W. Schmitz, A. Schukraft, R. Scott, W. Seligman, M. H. Shaevitz, M. Shoun, J. Sinclair, W. Sippach, T. Smidt, A. Smith, E. L. Snider, M. Soderberg, M. Solano-Gonzalez, S. Soldner-Rembold, S. R. Soleti, J. Sondericker, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, K. Sutton, A. M. Szelc, K. Taheri, N. Tagg, K. Tatum, J. Teng, K. Terao, M. Thomson, C. Thorn, J. Tillman, M. Toups, Y. T. Tsai, S. Tufanli, T. Usher, M. Utes, R. G. Van de Water, C. Vendetta, S. Vergani, E. Voirin, J. Voirin, B. Viren, P. Watkins, M. Weber, T. Wester, J. Weston, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, K. C. Wu, T. Yang, B. Yu, G. P. Zeller, J. Zennamo, C. Zhang, M. Zuckerbrot

This paper describes the design and construction of the MicroBooNE liquid argon time projection chamber and associated systems. MicroBooNE is the first phase of the Short Baseline Neutrino program, located at Fermilab, and will utilize the capabilities of liquid argon detectors to examine a rich assortment of physics topics. In this document details of design specifications, assembly procedures, and acceptance tests are reported. Read More

2015Jul
Authors: P. Adamson, K. Anderson, M. Andrews, R. Andrews, I. Anghel, D. Augustine, A. Aurisano, S. Avvakumov, D. S. Ayres, B. Baller, B. Barish, G. Barr, W. L. Barrett, R. H. Bernstein, J. Biggs, M. Bishai, A. Blake, V. Bocean, G. J. Bock, D. J. Boehnlein, D. Bogert, K. Bourkland, S. V. Cao, C. M. Castromonte, S. Childress, B. C. Choudhary, J. A. B. Coelho, J. H. Cobb, L. Corwin, D. Crane, J. P. Cravens, D. Cronin-Hennessy, R. J. Ducar, J. K. de Jong, A. V. Devan, N. E. Devenish, M. V. Diwan, A. R. Erwin, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, T. H. Fields, R. Ford, M. V. Frohne, H. R. Gallagher, V. Garkusha, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, N. Grossman, K. Grzelak, A. Habig, S. R. Hahn, D. Harding, D. Harris, P. G. Harris, J. Hartnell, R. Hatcher, S. Hays, K. Heller, A. Holin, J. Huang, J. Hylen, A. Ibrahim, D. Indurthy, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, J. Johnstone, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, C. Laughton, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, A. Marchionni, M. L. Marshak, N. Mayer, C. McGivern, M. M. Medeiros, R. Mehdiyev, J. R. Meier, M. D. Messier, D. G. Michael, R. H. Milburn, J. L. Miller, W. H. Miller, S. R. Mishra, S. Moed Sher, C. D. Moore, J. Morfin, L. Mualem, S. Mufson, S. Murgia, M. Murtagh, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, J. A. Nowak, J. O Connor, W. P. Oliver, M. Olsen, M. Orchanian, S. Osprey, R. B. Pahlka, J. Paley, A. Para, R. B. Patterson, T. Patzak, Z. Pavlovic, G. Pawloski, A. Perch, E. A. Peterson, D. A. Petyt, M. M. Pfutzner, S. Phan-Budd, R. K. Plunkett, N. Poonthottathil, P. Prieto, D. Pushka, X. Qiu, A. Radovic, R. A. Rameika, J. Ratchford, B. Rebel, R. Reilly, C. Rosenfeld, H. A. Rubin, K. Ruddick, M. C. Sanchez, N. Saoulidou, L. Sauer, J. Schneps, D. Schoo, A. Schreckenberger, P. Schreiner, P. Shanahan, R. Sharma, W. Smart, C. Smith, A. Sousa, A. Stefanik, N. Tagg, R. L. Talaga, G. Tassotto, J. Thomas, J. Thompson, M. A. Thomson, X. Tian, A. Timmons, D. Tinsley, S. C. Tognini, R. Toner, D. Torretta, I. Trostin, G. Tzanakos, J. Urheim, P. Vahle, K. Vaziri, E. Villegas, B. Viren, G. Vogel, R. C. Webber, A. Weber, R. C. Webb, A. Wehmann, C. White, L. Whitehead, L. H. Whitehead, S. G. Wojcicki, M. L. Wong-Squires, T. Yang, F. X. Yumiceva, V. Zarucheisky, R. Zwaska

This paper describes the hardware and operations of the Neutrinos at the Main Injector (NuMI) beam at Fermilab. It elaborates on the design considerations for the beam as a whole and for individual elements. The most important design details of individual components are described. Read More

2014Aug
Affiliations: 1KEK, Tsukuba, 2KEK, Tsukuba, 3KEK, Tsukuba, 4Kyoto U., 5Kyoto U., 6JAEA, Ibaraki, 7JAEA, Ibaraki, 8JAEA, Ibaraki, 9JAEA, Ibaraki, 10Shimizu Corp., 11Fermilab, 12Fermilab, 13Fermilab, 14Fermilab, 15Fermilab

At the 120-GeV proton accelerator facilities of Fermilab, USA, water samples were collected from the cooling water systems for the target, magnetic horn1, magnetic horn2, decay pipe, and hadron absorber at the NuMI beamline as well as from the cooling water systems for the collection lens, pulse magnet and collimator, and beam absorber at the antiproton production target station, just after the shutdown of the accelerators for a maintenance period. Specific activities of {\gamma} -emitting radionuclides and 3H in these samples were determined using high-purity germanium detectors and a liquid scintillation counter. The cooling water contained various radionuclides depending on both major and minor materials in contact with the water. Read More

2013May

The MINERvA experiment is designed to perform precision studies of neutrino-nucleus scattering using $\nu_\mu$ and ${\bar\nu}_\mu$ neutrinos incident at 1-20 GeV in the NuMI beam at Fermilab. This article presents a detailed description of the \minerva detector and describes the {\em ex situ} and {\em in situ} techniques employed to characterize the detector and monitor its performance. The detector is comprised of a finely-segmented scintillator-based inner tracking region surrounded by electromagnetic and hadronic sampling calorimetry. Read More

2013May
Authors: The MINERvA collaboration, L. Fields, J. Chvojka, L. Aliaga, O. Altinok, B. Baldin, A. Baumbaugh, A. Bodek, D. Boehnlein, S. Boyd, R. Bradford, W. K. Brooks, H. Budd, A. Butkevich, D. A. Martinez Caicedo, C. M. Castromonte, M. E. Christy, H. Chung, M. Clark, H. da Motta, D. S. Damiani, I. Danko, M. Datta, M. Day, R. DeMaat, J. Devan, E. Draeger, S. A. Dytman, G. A. Díaz, B. Eberly, D. A. Edmondson, J. Felix, T. Fitzpatrick, G. A. Fiorentini, A. M. Gago, H. Gallagher, C. A. George, J. A. Gielata, C. Gingu, B. Gobbi, R. Gran, N. Grossman, J. Hanson, D. A. Harris, J. Heaton, A. Higuera, I. J. Howley, K. Hurtado, M. Jerkins, T. Kafka, J. Kaisen, M. O. Kanter, C. E. Keppel, J. Kilmer, M. Kordosky, A. H. Krajeski, S. A. Kulagin, T. Le, H. Lee, A. G. Leister, G. Locke, G. Maggi, E. Maher, S. Manly, W. A. Mann, C. M. Marshall, K. S. McFarland, C. L. McGivern, A. M. McGowan, A. Mislivec, J. G. Morfín, J. Mousseau, D. Naples, J. K. Nelson, G. Niculescu, I. Niculescu, N. Ochoa, C. D. O'Connor, J. Olsen, B. Osmanov, J. Osta, J. L. Palomino, V. Paolone, J. Park, C. E. Patrick, G. N. Perdue, C. Peña, L. Rakotondravohitra, R. D. Ransome, H. Ray, L. Ren, P. A. Rodrigues, C. Rude, K. E. Sassin, H. Schellman, D. W. Schmitz, R. M. Schneider, E. C. Schulte, C. Simon, F. D. Snider, M. C. Snyder, J. T. Sobczyk, C. J. Solano Salinas, N. Tagg, W. Tan, B. G. Tice, G. Tzanakos, J. P. Velásquez, J. Walding, T. Walton, J. Wolcott, B. A. Wolthuis, N. Woodward, G. Zavala, H. B. Zeng, D. Zhang, L. Y. Zhu, B. P. Ziemer

We have isolated muon anti-neutrino charged-current quasi-elastic interactions occurring in the segmented scintillator tracking region of the MINERvA detector running in the NuMI neutrino beam at Fermilab. We measure the flux-averaged differential cross-section, d{\sigma}/dQ^2, and compare to several theoretical models of quasi-elastic scattering. Good agreement is obtained with a model where the nucleon axial mass, M_A, is set to 0. Read More

2013May
Authors: The MINERvA collaboration, G. A. Fiorentini, D. W. Schmitz, P. A. Rodrigues, L. Aliaga, O. Altinok, B. Baldin, A. Baumbaugh, A. Bodek, D. Boehnlein, S. Boyd, R. Bradford, W. K. Brooks, H. Budd, A. Butkevich, D. A. Martinez Caicedo, C. M. Castromonte, M. E. Christy, H. Chung, J. Chvojka, M. Clark, H. da Motta, D. S. Damiani, I. Danko, M. Datta, M. Day, R. DeMaat, J. Devan, E. Draeger, S. A. Dytman, G. A. Díaz, B. Eberly, D. A. Edmondson, J. Felix, T. Fitzpatrick, L. Fields, A. M. Gago, H. Gallagher, C. A. George, J. A. Gielata, C. Gingu, B. Gobbi, R. Gran, N. Grossman, J. Hanson, D. A. Harris, J. Heaton, A. Higuera, I. J. Howley, K. Hurtado, M. Jerkins, T. Kafka, J. Kaisen, M. O. Kanter, C. E. Keppel, J. Kilmer, M. Kordosky, A. H. Krajeski, S. A. Kulagin, T. Le, H. Lee, A. G. Leister, G. Locke, G. Maggi, E. Maher, S. Manly, W. A. Mann, C. M. Marshall, K. S. McFarland, C. L. McGivern, A. M. McGowan, A. Mislivec, J. G. Morfń, J. Mousseau, D. Naples, J. K. Nelson, G. Niculescu, I. Niculescu, N. Ochoa, C. D. O'Connor, J. Olsen, B. Osmanov, J. Osta, J. L. Palomino, V. Paolone, J. Park, C. E. Patrick, G. N. Perdue, C. Peña, L. Rakotondravohitra, R. D. Ransome, H. Ray, L. Ren, C. Rude, K. E. Sassin, H. Schellman, R. M. Schneider, E. C. Schulte, C. Simon, F. D. Snider, M. C. Snyder, J. T. Sobczyk, C. J. Solano Salinas, N. Tagg, W. Tan, B. G. Tice, G. Tzanakos, J. P. Velásquez, J. Walding, T. Walton, J. Wolcott, B. A. Wolthuis, N. Woodward, G. Zavala, H. B. Zeng, D. Zhang, L. Y. Zhu, B. P. Ziemer

We report a study of muon neutrino charged-current quasi-elastic events in the segmented scintillator inner tracker of the MINERvA experiment running in the NuMI neutrino beam at Fermilab. The events were selected by requiring a {\mu}^- and low calorimetric recoil energy separated from the interaction vertex. We measure the flux-averaged differential cross-section, d{\sigma}/dQ^2, and study the low energy particle content of the final state. Read More

2012Aug

This paper reports measurements of atmospheric neutrino and antineutrino interactions in the MINOS Far Detector, based on 2553 live-days (37.9 kton-years) of data. A total of 2072 candidate events are observed. Read More

The JASMIN Collaboration has studied the production of radionuclides by muons in the muon alcoves of the NuMI beamline at Fermilab. Samples of aluminum and copper are exposed to the muon field and counted on HpGe detectors when removed to determine their content of radioactive isotopes. We compare the results to MARS simulations and discuss the radiological implications for neutrino factories and muon colliders. Read More

2012Mar

Beams of neutrinos have been proposed as a vehicle for communications under unusual circumstances, such as direct point-to-point global communication, communication with submarines, secure communications and interstellar communication. We report on the performance of a low-rate communications link established using the NuMI beam line and the MINERvA detector at Fermilab. The link achieved a decoded data rate of 0. Read More

2012Feb
Affiliations: 1Kyoto U., KURRI, 2JAEA, Ibaraki, 3JAEA, Ibaraki, 4KEK, Tsukuba, 5KEK, Tsukuba, 6KEK, Tsukuba & Tsukuba U., 7Fermilab, 8Fermilab, 9Fermilab, 10Fermilab, 11Fermilab, 12Shimizu, Tokyo, 13JAEA, Ibaraki, 14JAEA, Ibaraki

The JASMIN Collaboration has performed an experiment to conduct measurements of nuclear reaction rates around the anti-proton production (Pbar) target at the Fermi National Accelerator Laboratory (FNAL). At the Pbar target station, the target, consisting an Inconel 600 cylinder, was irradiated by a 120 GeV/c proton beam from the FNAL Main Injector. The beam intensity was 3. Read More

2012Feb

We report an improved measurement of muon anti-neutrino disappearance over a distance of 735km using the MINOS detectors and the Fermilab Main Injector neutrino beam in a muon anti-neutrino enhanced configuration. From a total exposure of 2.95e20 protons on target, of which 42% have not been previously analyzed, we make the most precise measurement of the anti-neutrino "atmospheric" delta-m squared = 2. Read More

2012Feb
Affiliations: 1JAEA, Ibaraki, 2Fermilab, 3JAEA, Ibaraki, 4JAEA, Ibaraki, 5JAEA, Ibaraki, 6JAEA, Ibaraki, 7Fermilab, 8Fermilab, 9Fermilab, 10KEK, Tsukuba, 11KEK, Tsukuba, 12KEK, Tsukuba, 13KEK, Tsukuba, 14KEK, Tsukuba, 15Tohoku U., 16Shimizu, Tokyo, 17Kyushu U., 18Kyushu U., 19Kyushu U., 20Kyushu U., 21Kyoto U., 22Kyoto U., 23Tsukuba U., 24Pohang Accelerator Lab., 25Tokai, ROIST

Experimental studies of shielding and radiation effects at Fermi National Accelerator Laboratory (FNAL) have been carried out under collaboration between FNAL and Japan, aiming at benchmarking of simulation codes and study of irradiation effects for upgrade and design of new high-energy accelerator facilities. The purposes of this collaboration are (1) acquisition of shielding data in a proton beam energy domain above 100 GeV; (2) further evaluation of predictive accuracy of the PHITS and MARS codes; (3) modification of physics models and data in these codes if needed; (4) establishment of irradiation field for radiation effect tests; and (5) development of a code module for improved description of radiation effects. A series of experiments has been performed at the Pbar target station and NuMI facility, using irradiation of targets with 120 GeV protons for antiproton and neutrino production, as well as the M-test beam line (M-test) for measuring nuclear data and detector responses. Read More

2012Feb
Affiliations: 1Kyushu U., 2KEK, Tsukuba, 3Kyushu U., 4JAEA, Ibaraki, 5KEK, Tsukuba, 6KEK, Tsukuba, 7Kyushu U., 8JAEA, Ibaraki, 9JAEA, Ibaraki, 10Pohang Accelerator Lab., 11Fermilab, 12Fermilab, 13Fermilab, 14Fermilab, 15Fermilab, 16Fermilab, 17Fermilab

Neutron energy spectrum from 120 GeV protons on a thick copper target was measured at the Meson Test Beam Facility (MTBF) at Fermi National Accelerator Laboratory. The data allows for evaluation of neutron production process implemented in theoretical simulation codes. It also helps exploring the reasons for some disagreement between calculation results and shielding benchmark data taken at high energy accelerator facilities, since it is evaluated separately from neutron transport. Read More

2012Jan
Authors: P. Adamson1, D. S. Ayres2, G. Barr3, M. Bishai4, A. Blake5, G. J. Bock6, D. J. Boehnlein7, D. Bogert8, S. V. Cao9, S. Cavanaugh10, S. Childress11, J. A. B. Coelho12, L. Corwin13, D. Cronin-Hennessy14, I. Z. Danko15, J. K. de Jong16, N. E. Devenish17, M. V. Diwan18, C. O. Escobar19, J. J. Evans20, E. Falk21, G. J. Feldman22, M. V. Frohne23, H. R. Gallagher24, R. A. Gomes25, M. C. Goodman26, P. Gouffon27, N. Graf28, R. Gran29, K. Grzelak30, A. Habig31, J. Hartnell32, R. Hatcher33, A. Himmel34, A. Holin35, J. Hylen36, G. M. Irwin37, Z. Isvan38, C. James39, D. Jensen40, T. Kafka41, S. M. S. Kasahara42, G. Koizumi43, S. Kopp44, M. Kordosky45, A. Kreymer46, K. Lang47, J. Ling48, P. J. Litchfield49, L. Loiacono50, P. Lucas51, W. A. Mann52, M. L. Marshak53, M. Mathis54, N. Mayer55, R. Mehdiyev56, J. R. Meier57, M. D. Messier58, W. H. Miller59, S. R. Mishra60, J. Mitchell61, C. D. Moore62, L. Mualem63, S. Mufson64, J. Musser65, D. Naples66, J. K. Nelson67, H. B. Newman68, R. J. Nichol69, J. A. Nowak70, W. P. Oliver71, M. Orchanian72, R. B. Pahlka73, J. Paley74, R. B. Patterson75, G. Pawloski76, S. Phan-Budd77, R. K. Plunkett78, X. Qiu79, A. Radovic80, J. Ratchford81, B. Rebel82, C. Rosenfeld83, H. A. Rubin84, M. C. Sanchez85, J. Schneps86, A. Schreckenberger87, P. Schreiner88, R. Sharma89, A. Sousa90, M. Strait91, N. Tagg92, R. L. Talaga93, J. Thomas94, M. A. Thomson95, G. Tinti96, R. Toner97, D. Torretta98, G. Tzanakos99, J. Urheim100, P. Vahle101, B. Viren102, J. J. Walding103, A. Weber104, R. C. Webb105, C. White106, L. Whitehead107, S. G. Wojcicki108, R. Zwaska109
Affiliations: 1The MINOS Collaboration, 2The MINOS Collaboration, 3The MINOS Collaboration, 4The MINOS Collaboration, 5The MINOS Collaboration, 6The MINOS Collaboration, 7The MINOS Collaboration, 8The MINOS Collaboration, 9The MINOS Collaboration, 10The MINOS Collaboration, 11The MINOS Collaboration, 12The MINOS Collaboration, 13The MINOS Collaboration, 14The MINOS Collaboration, 15The MINOS Collaboration, 16The MINOS Collaboration, 17The MINOS Collaboration, 18The MINOS Collaboration, 19The MINOS Collaboration, 20The MINOS Collaboration, 21The MINOS Collaboration, 22The MINOS Collaboration, 23The MINOS Collaboration, 24The MINOS Collaboration, 25The MINOS Collaboration, 26The MINOS Collaboration, 27The MINOS Collaboration, 28The MINOS Collaboration, 29The MINOS Collaboration, 30The MINOS Collaboration, 31The MINOS Collaboration, 32The MINOS Collaboration, 33The MINOS Collaboration, 34The MINOS Collaboration, 35The MINOS Collaboration, 36The MINOS Collaboration, 37The MINOS Collaboration, 38The MINOS Collaboration, 39The MINOS Collaboration, 40The MINOS Collaboration, 41The MINOS Collaboration, 42The MINOS Collaboration, 43The MINOS Collaboration, 44The MINOS Collaboration, 45The MINOS Collaboration, 46The MINOS Collaboration, 47The MINOS Collaboration, 48The MINOS Collaboration, 49The MINOS Collaboration, 50The MINOS Collaboration, 51The MINOS Collaboration, 52The MINOS Collaboration, 53The MINOS Collaboration, 54The MINOS Collaboration, 55The MINOS Collaboration, 56The MINOS Collaboration, 57The MINOS Collaboration, 58The MINOS Collaboration, 59The MINOS Collaboration, 60The MINOS Collaboration, 61The MINOS Collaboration, 62The MINOS Collaboration, 63The MINOS Collaboration, 64The MINOS Collaboration, 65The MINOS Collaboration, 66The MINOS Collaboration, 67The MINOS Collaboration, 68The MINOS Collaboration, 69The MINOS Collaboration, 70The MINOS Collaboration, 71The MINOS Collaboration, 72The MINOS Collaboration, 73The MINOS Collaboration, 74The MINOS Collaboration, 75The MINOS Collaboration, 76The MINOS Collaboration, 77The MINOS Collaboration, 78The MINOS Collaboration, 79The MINOS Collaboration, 80The MINOS Collaboration, 81The MINOS Collaboration, 82The MINOS Collaboration, 83The MINOS Collaboration, 84The MINOS Collaboration, 85The MINOS Collaboration, 86The MINOS Collaboration, 87The MINOS Collaboration, 88The MINOS Collaboration, 89The MINOS Collaboration, 90The MINOS Collaboration, 91The MINOS Collaboration, 92The MINOS Collaboration, 93The MINOS Collaboration, 94The MINOS Collaboration, 95The MINOS Collaboration, 96The MINOS Collaboration, 97The MINOS Collaboration, 98The MINOS Collaboration, 99The MINOS Collaboration, 100The MINOS Collaboration, 101The MINOS Collaboration, 102The MINOS Collaboration, 103The MINOS Collaboration, 104The MINOS Collaboration, 105The MINOS Collaboration, 106The MINOS Collaboration, 107The MINOS Collaboration, 108The MINOS Collaboration, 109The MINOS Collaboration

We have searched for sidereal variations in the rate of antineutrino interactions in the MINOS Near Detector. Using antineutrinos produced by the NuMI beam, we find no statistically significant sidereal modulation in the rate. When this result is placed in the context of the Standard Model Extension theory we are able to place upper limits on the coefficients defining the theory. Read More

2011Oct
Authors: The LBNE Collaboration, T. Akiri, D. Allspach, M. Andrews, K. Arisaka, E. Arrieta-Diaz, M. Artuso, X. Bai, B. Balantekin, B. Baller, W. Barletta, G. Barr, M. Bass, A. Beck, B. Becker, V. Bellini, O. Benhar, B. Berger, M. Bergevin, E. Berman, H. Berns, A. Bernstein, F. Beroz, V. Bhatnagar, B. Bhuyan, R. Bionta, M. Bishai, A. Blake, E. Blaufuss, B. Bleakley, E. Blucher, S. Blusk, D. Boehnlein, T. Bolton, J. Brack, R. Bradford, R. Breedon, C. Bromberg, R. Brown, N. Buchanan, L. Camilleri, M. Campbell, R. Carr, G. Carminati, A. Chen, H. Chen, D. Cherdack, C. Chi, S. Childress, B. Choudhary, E. Church, D. Cline, S. Coleman, R. Corey, M. D'Agostino, G. Davies, S. Dazeley, J. De Jong, B. DeMaat, D. Demuth, A. Dighe, Z. Djurcic, J. Dolph, G. Drake, A. Drozhdin, H. Duan, H. Duyang, S. Dye, T. Dykhuis, D. Edmunds, S. Elliott, S. Enomoto, C. Escobar, J. Felde, F. Feyzi, B. Fleming, J. Fowler, W. Fox, A. Friedland, B. Fujikawa, H. Gallagher, G. Garilli, G. Garvey, V. Gehman, G. Geronimo, R. Gill, M. Goodman, J. Goon, D. Gorbunov, R. Gran, V. Guarino, E. Guarnaccia, R. Guenette, P. Gupta, A. Habig, R. Hackenberg, A. Hahn, R. Hahn, T. Haines, S. Hans, J. Harton, S. Hays, E. Hazen, Q. He, A. Heavey, K. Heeger, R. Hellauer, A. Himmel, G. Horton-Smith, J. Howell, P. Huber, P. Hurh, J. Huston, J. Hylen, J. Insler, D. Jaffe, C. James, C. Johnson, M. Johnson, R. Johnson, W. Johnson, W. Johnston, J. Johnstone, B. Jones, H. Jostlein, T. Junk, S. Junnarkar, R. Kadel, T. Kafka, D. Kaminski, G. Karagiorgi, A. Karle, J. Kaspar, T. Katori, B. Kayser, E. Kearns, S. Kettell, F. Khanam, J. Klein, J. Kneller, G. Koizumi, J. Kopp, S. Kopp, W. Kropp, V. Kudryavtsev, A. Kumar, J. Kumar, T. Kutter, T. Lackowski, K. Lande, C. Lane, K. Lang, F. Lanni, R. Lanza, T. Latorre, J. Learned, D. Lee, K. Lee, Y. Li, S. Linden, J. Ling, J. Link, L. Littenberg, L. Loiacono, T. Liu, J. Losecco, W. Louis, P. Lucas, C. Lunardini, B. Lundberg, T. Lundin, D. Makowiecki, S. Malys, S. Mandal, A. Mann, A. Mann, P. Mantsch, W. Marciano, C. Mariani, J. Maricic, A. Marino, M. Marshak, R. Maruyama, J. Mathews, S. Matsuno, C. Mauger, E. McCluskey, K. McDonald, K. McFarland, R. McKeown, R. McTaggart, R. Mehdiyev, W. Melnitchouk, Y. Meng, B. Mercurio, M. Messier, W. Metcalf, R. Milincic, W. Miller, G. Mills, S. Mishra, S. MoedSher, D. Mohapatra, N. Mokhov, C. Moore, J. Morfin, W. Morse, A. Moss, S. Mufson, J. Musser, D. Naples, J. Napolitano, M. Newcomer, B. Norris, S. Ouedraogo, B. Page, S. Pakvasa, J. Paley, V. Paolone, V. Papadimitriou, Z. Parsa, K. Partyka, Z. Pavlovic, C. Pearson, S. Perasso, R. Petti, R. Plunkett, C. Polly, S. Pordes, R. Potenza, A. Prakash, O. Prokofiev, X. Qian, J. Raaf, V. Radeka, R. Raghavan, R. Rameika, B. Rebel, S. Rescia, D. Reitzner, M. Richardson, K. Riesselman, M. Robinson, M. Rosen, C. Rosenfeld, R. Rucinski, T. Russo, S. Sahijpal, S. Salon, N. Samios, M. Sanchez, R. Schmitt, D. Schmitz, J. Schneps, K. Scholberg, S. Seibert, F. Sergiampietri, M. Shaevitz, P. Shanahan, M. Shaposhnikov, R. Sharma, N. Simos, V. Singh, G. Sinnis, W. Sippach, T. Skwarnicki, M. Smy, H. Sobel, M. Soderberg, J. Sondericker, W. Sondheim, J. Spitz, N. Spooner, M. Stancari, I. Stancu, J. Stewart, P. Stoler, J. Stone, S. Stone, J. Strait, T. Straszheim, S. Striganov, G. Sullivan, R. Svoboda, B. Szczerbinska, A. Szelc, R. Talaga, H. Tanaka, R. Tayloe, D. Taylor, J. Thomas, L. Thompson, M. Thomson, C. Thorn, X. Tian, W. Toki, N. Tolich, M. Tripathi, M. Trovato, H. Tseung, M. Tzanov, J. Urheim, S. Usman, M. Vagins, R. Van Berg, R. Van de Water, G. Varner, K. Vaziri, G. Velev, B. Viren, T. Wachala, C. Walter, H. Wang, Z. Wang, D. Warner, D. Webber, A. Weber, R. Wendell, C. Wendt, M. Wetstein, H. White, S. White, L. Whitehead, W. Willis, R. J. Wilson, L. Winslow, J. Ye, M. Yeh, B. Yu, G. Zeller, C. Zhang, E. Zimmerman, R. Zwaska

In early 2010, the Long-Baseline Neutrino Experiment (LBNE) science collaboration initiated a study to investigate the physics potential of the experiment with a broad set of different beam, near- and far-detector configurations. Nine initial topics were identified as scientific areas that motivate construction of a long-baseline neutrino experiment with a very large far detector. We summarize the scientific justification for each topic and the estimated performance for a set of far detector reference configurations. Read More

2011Aug
Authors: MINOS Collaboration, P. Adamson, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, S. V. Cao, S. Cavanaugh, D. Cherdack, S. Childress, B. C. Choudhary, J. A. B. Coelho, S. J. Coleman, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, N. Grant, K. Grzelak, A. Habig, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, C. Howcroft, X. Huang, J. Hylen, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, M. Mathis, N. Mayer, R. Mehdiyev, J. R. Meier, M. D. Messier, D. G. Michael, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, J. A. Nowak, J. P. Ochoa-Ricoux, W. P. Oliver, M. Orchanian, R. Pahlka, J. Paley, R. B. Patterson, G. Pawloski, G. F. Pearce, S. Phan-Budd, R. K. Plunkett, X. Qiu, J. Ratchford, B. Rebel, C. Rosenfeld, H. A. Rubin, M. C. Sanchez, J. Schneps, A. Schreckenberger, P. Schreiner, R. Sharma, A. Sousa, M. Strait, N. Tagg, R. L. Talaga, M. A. Tavera, J. Thomas, M. A. Thomson, G. Tinti, R. Toner, D. Torretta, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, J. J. Walding, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, T. Yang, R. Zwaska

We report constraints on antineutrino oscillation parameters that were obtained by using the two MINOS detectors to measure the 7% muon antineutrino component of the NuMI neutrino beam. In the Far Detector, we select 130 events in the charged-current muon antineutrino sample, compared to a prediction of 136.4 +/- 11. Read More

2011Jul
Authors: MINOS Collaboration, P. Adamson, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Betancourt, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, S. V. Cao, S. Cavanaugh, D. Cherdack, S. Childress, J. A. B. Coelho, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, K. Grzelak, A. Habig, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, X. Huang, J. Hylen, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, M. Mathis, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, D. G. Michael, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, J. A. Nowak, J. P. Ochoa-Ricoux, W. P. Oliver, M. Orchanian, J. Paley, R. B. Patterson, G. Pawloski, G. F. Pearce, S. Phan-Budd, R. K. Plunkett, X. Qiu, J. Ratchford, B. Rebel, C. Rosenfeld, H. A. Rubin, M. C. Sanchez, J. Schneps, A. Schreckenberger, P. Schreiner, P. Shanahan, R. Sharma, A. Sousa, N. Tagg, R. L. Talaga, J. Thomas, M. A. Thomson, R. Toner, D. Torretta, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, J. J. Walding, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, T. Yang, R. Zwaska

We report the results of a search for $\nu_{e}$ appearance in a $\nu_{\mu}$ beam in the MINOS long-baseline neutrino experiment. With an improved analysis and an increased exposure of $8.2\times10^{20}$ protons on the NuMI target at Fermilab, we find that $2\sin^2(\theta_{23})\sin^2(2\theta_{13})<0. Read More

2011Apr
Authors: MINOS Collaboration, P. Adamson, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, S. Cavanaugh, D. Cherdack, S. Childress, J. A. B. Coelho, S. J. Coleman, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, N. Grant, K. Grzelak, A. Habig, D. Harris, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, X. Huang, J. Hylen, J. Ilic, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, J. Morfín, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, T. C. Nicholls, J. A. Nowak, W. P. Oliver, M. Orchanian, J. Paley, R. B. Patterson, G. Pawloski, G. F. Pearce, D. A. Petyt, S. Phan-Budd, R. Pittam, R. K. Plunkett, X. Qiu, J. Ratchford, T. M. Raufer, B. Rebel, P. A. Rodrigues, C. Rosenfeld, H. A. Rubin M. C. Sanchez, J. Schneps, P. Schreiner, R. Sharma, P. Shanahan, A. Sousa, P. Stamoulis, M. Strait, N. Tagg, R. L. Talaga, E. Tetteh-Lartey, J. Thomas, M. A. Thomson, G. Tinti, R. Toner, D. Torretta, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, J. J. Walding, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, R. Zwaska

Results are reported from a search for active to sterile neutrino oscillations in the MINOS long-baseline experiment, based on the observation of neutral-current neutrino interactions, from an exposure to the NuMI neutrino beam of $7.07\times10^{20}$ protons on target. A total of 802 neutral-current event candidates is observed in the Far Detector, compared to an expected number of $754\pm28\rm{(stat. Read More

2011Apr
Authors: MINOS collaboration, P. Adamson, C. Andreopoulos, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, S. Cavanaugh, D. Cherdack, S. Childress, B. C. Choudhary, J. A. B. Coelho, S. J. Coleman, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, N. Grant, K. Grzelak, A. Habig, D. Harris, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, C. Howcroft, X. Huang, J. Hylen, J. Ilic, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, J. Morfín, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, T. C. Nicholls, J. A. Nowak, J. P. Ochoa-Ricoux, W. P. Oliver, M. Orchanian, R. Ospanov, J. Paley, R. B. Patterson, G. Pawloski, G. F. Pearce, D. A. Petyt, S. Phan-Budd, R. K. Plunkett, X. Qiu, J. Ratchford, T. M. Raufer, B. Rebel, P. A. Rodrigues, C. Rosenfeld, H. A. Rubin, M. C. Sanchez, J. Schneps, P. Schreiner, P. Shanahan, A. Sousa, P. Stamoulis, M. Strait, N. Tagg, R. L. Talaga, E. Tetteh-Lartey, J. Thomas, M. A. Thomson, G. Tinti, R. Toner, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, T. Yang, R. Zwaska

This letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for muon antineutrino production, accumulating an exposure of $1.71\times 10^{20}$ protons on target. Read More

2011Mar
Authors: The MINOS Collaboration, P. Adamson, C. Andreopoulos, R. Armstrong, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, S. Cavanaugh, D. Cherdack, S. Childress, B. C. Choudhary, J. A. B. Coelho, S. J. Coleman, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, N. Graf, R. Gran, N. Grant, K. Grzelak, A. Habig, D. Harris, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, X. Huang, J. Hylen, J. Ilic, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, R. P. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, D. G. Michael, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, J. Morfín, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, J. A. Nowak, W. P. Oliver, M. Orchanian, R. Ospanov, J. Paley, R. B. Patterson, G. Pawloski, G. F. Pearce, D. A. Petyt, S. Phan-Budd, R. K. Plunkett, X. Qiu, J. Ratchford, T. M. Raufer, B. Rebel, P. A. Rodrigues, C. Rosenfeld, H. A. Rubin, M. C. Sanchez, J. Schneps, P. Schreiner, P. Shanahan, C. Smith, A. Sousa, P. Stamoulis, M. Strait, N. Tagg, R. L. Talaga, J. Thomas, M. A. Thomson, G. Tinti, R. Toner, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, T. Yang, R. Zwaska

Measurements of neutrino oscillations using the disappearance of muon neutrinos from the Fermilab NuMI neutrino beam as observed by the two MINOS detectors are reported. New analysis methods have been applied to an enlarged data sample from an exposure of $7.25 \times 10^{20}$ protons on target. Read More

2010Jul
Authors: MINOS Collaboration, P. Adamson, D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, W. L. Barrett, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, C. Bower, S. Budd, S. Cavanaugh, D. Cherdack, S. Childress, B. C. Choudhary, J. A. B. Coelho, J. H. Cobb, S. J. Coleman, L. Corwin, J. P. Cravens, D. Cronin-Hennessy, I. Z. Danko, J. K. de Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, R. A. Gomes, M. C. Goodman, P. Gouffon, R. Gran, N. Grant, K. Grzelak, A. Habig, D. Harris, P. G. Harris, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, X. Huang, J. Hylen, J. Ilic, G. M. Irwin, Z. Isvan, D. E. Jaffe, C. James, D. Jensen, T. Kafka, S. M. S. Kasahara, G. Koizumi, S. Kopp, M. Kordosky, Z. Krahn, A. Kreymer, K. Lang, G. Lefeuvre, J. Ling, P. J. Litchfield, L. Loiacono, P. Lucas, W. A. Mann, M. L. Marshak, N. Mayer, A. M. McGowan, R. Mehdiyev, J. R. Meier, M. D. Messier, D. G. Michael, J. L. Miller, W. H. Miller, S. R. Mishra, J. Mitchell, C. D. Moore, L. Mualem, S. Mufson, J. Musser, D. Naples, J. K. Nelson, H. B. Newman, R. J. Nichol, W. P. Oliver, M. Orchanian, J. Paley, R. B. Patterson, T. Patzak, G. Pawloski, G. F. Pearce, R. Pittam, R. K. Plunkett, J. Ratchford, T. M. Raufer, B. Rebel, P. A. Rodrigues, C. Rosenfeld, H. A. Rubin, V. A. Ryabov, M. C. Sanchez, N. Saoulidou, J. Schneps, P. Schreiner, V. K. Semenov, P. Shanahan, W. Smart, A. Sousa, M. Strait, N. Tagg, R. L. Talaga, J. Thomas, M. A. Thomson, G. Tinti, R. Toner, G. Tzanakos, J. Urheim, P. Vahle, B. Viren, A. Weber, R. C. Webb, C. White, L. Whitehead, S. G. Wojcicki, D. M. Wright, T. Yang, M. Zois, R. Zwaska

We searched for a sidereal modulation in the MINOS far detector neutrino rate. Such a signal would be a consequence of Lorentz and CPT violation as described by the Standard-Model Extension framework. It also would be the first detection of a perturbative effect to conventional neutrino mass oscillations. Read More

Novel detector schemes are proposed for the short-baseline neutrino experiments of next generation, aimed at exploring the large-$\Delta m^2$ domain of \omutau oscillations in the appearance mode. These schemes emphasize good spectrometry for charged particles and for electromagnetic showers and efficient reconstruction of \ypi_gg decays. The basic elements are a sequence of relatively thin emulsion targets, immersed in magnetic field and interspersed with electronic trackers, and a fine-grained electromagnetic calorimeter built of lead glass. Read More