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Ramírez MA, Akhter S, Ahmad Dar Z, Akbar F, Ansari V, Ascencio MV, Sajjad Athar M, Bashyal A, Bellantoni L, Bercellie A, Betancourt M, Bodek A, Bonilla JL, Bravar A, Budd H, Caceres G, Cai T, Díaz GA, da Motta H, Dytman SA, Felix J, Fields L, Filkins A, Fine R, Gallagher H, Ghosh A, Gilligan SM, Gran R, Granados E, Harris DA, Henry S, Jena D, Jena S, Kleykamp J, Klustová A, Kordosky M, Last D, Lozano A, Lu XG, Maher E, Manly S, Mann WA, Mauger C, McFarland KS, Messerly B, Miller J, Moreno O, Morfín JG, Naples D, Nelson JK, Nguyen C, Olivier A, Paolone V, Perdue GN, Plows KJ, Ransome RD, Ruterbories D, Schellman H, Su H, Sultana M, Syrotenko VS, Valencia E, Vaughan NH, Waldron AV, Yaeggy B, Zazueta L. Neutrino-Induced Coherent π^{+} Production in C, CH, Fe, and Pb at ⟨E_{ν}⟩∼6 GeV. PHYSICAL REVIEW LETTERS 2023; 131:051801. [PMID: 37595210 DOI: 10.1103/physrevlett.131.051801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 04/07/2023] [Accepted: 06/20/2023] [Indexed: 08/20/2023]
Abstract
MINERvA has measured the ν_{μ}-induced coherent π^{+} cross section simultaneously in hydrocarbon (CH), graphite (C), iron (Fe), and lead (Pb) targets using neutrinos from 2 to 20 GeV. The measurements exceed the predictions of the Rein-Sehgal and Berger-Sehgal PCAC based models at multi-GeV ν_{μ} energies and at produced π^{+} energies and angles, E_{π}>1 GeV and θ_{π}<10°. Measurements of the cross-section ratios of Fe and Pb relative to CH reveal the effective A scaling to increase from an approximate A^{1/3} scaling at few GeV to an A^{2/3} scaling for E_{ν}>10 GeV.
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Affiliation(s)
- M A Ramírez
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - S Akhter
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Z Ahmad Dar
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - F Akbar
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - V Ansari
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - M V Ascencio
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - M Sajjad Athar
- Department of Physics, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - A Bashyal
- Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
| | - L Bellantoni
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bercellie
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - M Betancourt
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bodek
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - J L Bonilla
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - A Bravar
- University of Geneva, 1211 Geneva 4, Switzerland
| | - H Budd
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - G Caceres
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro, 22290-180, Brazil
| | - T Cai
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - G A Díaz
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - H da Motta
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro, 22290-180, Brazil
| | - S A Dytman
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Felix
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - L Fields
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A Filkins
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - R Fine
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - H Gallagher
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - A Ghosh
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro, 22290-180, Brazil
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida Espańa 1680 Casilla 110-V, Valparaíso, Chile
| | - S M Gilligan
- Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
| | - R Gran
- Department of Physics, University of Minnesota-Duluth, Duluth, Minnesota 55812, USA
| | - E Granados
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - D A Harris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- York University, Department of Physics and Astronomy, Toronto, Ontario, M3J 1P3, Canada
| | - S Henry
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - D Jena
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S Jena
- Department of Physical Sciences, IISER Mohali, Knowledge City, SAS Nagar, Mohali - 140306, Punjab, India
| | - J Kleykamp
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - A Klustová
- The Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - M Kordosky
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - D Last
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - A Lozano
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro, 22290-180, Brazil
| | - X-G Lu
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
- Oxford University, Department of Physics, Oxford, OX1 3PJ, United Kingdom
| | - E Maher
- Massachusetts College of Liberal Arts, 375 Church Street, North Adams, Massachusetts 01247, USA
| | - S Manly
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - W A Mann
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - C Mauger
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - K S McFarland
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - B Messerly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Miller
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida Espańa 1680 Casilla 110-V, Valparaíso, Chile
| | - O Moreno
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - J G Morfín
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Naples
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J K Nelson
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - C Nguyen
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - A Olivier
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - V Paolone
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - G N Perdue
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - K-J Plows
- Oxford University, Department of Physics, Oxford, OX1 3PJ, United Kingdom
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - D Ruterbories
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - H Schellman
- Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
| | - H Su
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - M Sultana
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - V S Syrotenko
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - E Valencia
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
| | - N H Vaughan
- Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
| | - A V Waldron
- The Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - B Yaeggy
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida Espańa 1680 Casilla 110-V, Valparaíso, Chile
| | - L Zazueta
- Department of Physics, William & Mary, Williamsburg, Virginia 23187, USA
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Abe K, Andreopoulos C, Antonova M, Aoki S, Ariga A, Assylbekov S, Autiero D, Ban S, Barbi M, Barker GJ, Barr G, Bartet-Friburg P, Batkiewicz M, Bay F, Berardi V, Berkman S, Bhadra S, Blondel A, Bolognesi S, Bordoni S, Boyd SB, Brailsford D, Bravar A, Bronner C, Buizza Avanzini M, Calland RG, Campbell T, Cao S, Caravaca Rodríguez J, Cartwright SL, Castillo R, Catanesi MG, Cervera A, Cherdack D, Chikuma N, Christodoulou G, Clifton A, Coleman J, Collazuol G, Coplowe D, Cremonesi L, Dabrowska A, De Rosa G, Dealtry T, Denner PF, Dennis SR, Densham C, Dewhurst D, Di Lodovico F, Di Luise S, Dolan S, Drapier O, Duffy KE, Dumarchez J, Dytman S, Dziewiecki M, Emery-Schrenk S, Ereditato A, Feusels T, Finch AJ, Fiorentini GA, Friend M, Fujii Y, Fukuda D, Fukuda Y, Furmanski AP, Galymov V, Garcia A, Giffin SG, Giganti C, Gizzarelli F, Gonin M, Grant N, Hadley DR, Haegel L, Haigh MD, Hamilton P, Hansen D, Harada J, Hara T, Hartz M, Hasegawa T, Hastings NC, Hayashino T, Hayato Y, Helmer RL, Hierholzer M, Hillairet A, Himmel A, Hiraki T, Hirota S, Hogan M, Holeczek J, Horikawa S, Hosomi F, Huang K, Ichikawa AK, Ieki K, Ikeda M, Imber J, Insler J, Intonti RA, Irvine TJ, Ishida T, Ishii T, Iwai E, Iwamoto K, Izmaylov A, Jacob A, Jamieson B, Jiang M, Johnson S, Jo JH, Jonsson P, Jung CK, Kabirnezhad M, Kaboth AC, Kajita T, Kakuno H, Kameda J, Karlen D, Karpikov I, Katori T, Kearns E, Khabibullin M, Khotjantsev A, Kielczewska D, Kikawa T, Kim H, Kim J, King S, Kisiel J, Knight A, Knox A, Kobayashi T, Koch L, Koga T, Konaka A, Kondo K, Kopylov A, Kormos LL, Korzenev A, Koshio Y, Kropp W, Kudenko Y, Kurjata R, Kutter T, Lagoda J, Lamont I, Larkin E, Lasorak P, Laveder M, Lawe M, Lazos M, Lindner T, Liptak ZJ, Litchfield RP, Li X, Longhin A, Lopez JP, Ludovici L, Lu X, Magaletti L, Mahn K, Malek M, Manly S, Marino AD, Marteau J, Martin JF, Martins P, Martynenko S, Maruyama T, Matveev V, Mavrokoridis K, Ma WY, Mazzucato E, McCarthy M, McCauley N, McFarland KS, McGrew C, Mefodiev A, Metelko C, Mezzetto M, Mijakowski P, Minamino A, Mineev O, Mine S, Missert A, Miura M, Moriyama S, Mueller TA, Murphy S, Myslik J, Nakadaira T, Nakahata M, Nakamura KG, Nakamura K, Nakamura KD, Nakayama S, Nakaya T, Nakayoshi K, Nantais C, Nielsen C, Nirkko M, Nishikawa K, Nishimura Y, Novella P, Nowak J, O'Keeffe HM, Ohta R, Okumura K, Okusawa T, Oryszczak W, Oser SM, Ovsyannikova T, Owen RA, Oyama Y, Palladino V, Palomino JL, Paolone V, Patel ND, Pavin M, Payne D, Perkin JD, Petrov Y, Pickard L, Pickering L, Pinzon Guerra ES, Pistillo C, Popov B, Posiadala-Zezula M, Poutissou JM, Poutissou R, Przewlocki P, Quilain B, Radermacher T, Radicioni E, Ratoff PN, Ravonel M, Rayner MAM, Redij A, Reinherz-Aronis E, Riccio C, Rojas P, Rondio E, Roth S, Rubbia A, Rychter A, Sacco R, Sakashita K, Sánchez F, Sato F, Scantamburlo E, Scholberg K, Schoppmann S, Schwehr J, Scott M, Seiya Y, Sekiguchi T, Sekiya H, Sgalaberna D, Shah R, Shaikhiev A, Shaker F, Shaw D, Shiozawa M, Shirahige T, Short S, Smy M, Sobczyk JT, Sobel H, Sorel M, Southwell L, Stamoulis P, Steinmann J, Stewart T, Stowell P, Suda Y, Suvorov S, Suzuki A, Suzuki K, Suzuki SY, Suzuki Y, Tacik R, Tada M, Takahashi S, Takeda A, Takeuchi Y, Tanaka HK, Tanaka HA, Terhorst D, Terri R, Thakore T, Thompson LF, Tobayama S, Toki W, Tomura T, Touramanis C, Tsukamoto T, Tzanov M, Uchida Y, Vacheret A, Vagins M, Vallari Z, Vasseur G, Wachala T, Wakamatsu K, Walter CW, Wark D, Warzycha W, Wascko MO, Weber A, Wendell R, Wilkes RJ, Wilking MJ, Wilkinson C, Wilson JR, Wilson RJ, Yamada Y, Yamamoto K, Yamamoto M, Yanagisawa C, Yano T, Yen S, Yershov N, Yokoyama M, Yoo J, Yoshida K, Yuan T, Yu M, Zalewska A, Zalipska J, Zambelli L, Zaremba K, Ziembicki M, Zimmerman ED, Zito M, Żmuda J. Measurement of Coherent π^{+} Production in Low Energy Neutrino-Carbon Scattering. PHYSICAL REVIEW LETTERS 2016; 117:192501. [PMID: 27858422 DOI: 10.1103/physrevlett.117.192501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Indexed: 06/06/2023]
Abstract
We report the first measurement of the flux-averaged cross section for charged current coherent π^{+} production on carbon for neutrino energies less than 1.5 GeV, and with a restriction on the final state phase space volume in the T2K near detector, ND280. Comparisons are made with predictions from the Rein-Sehgal coherent production model and the model by Alvarez-Ruso et al., the latter representing the first implementation of an instance of the new class of microscopic coherent models in a neutrino interaction Monte Carlo event generator. We observe a clear event excess above background, disagreeing with the null results reported by K2K and SciBooNE in a similar neutrino energy region. The measured flux-averaged cross sections are below those predicted by both the Rein-Sehgal and Alvarez-Ruso et al.
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Affiliation(s)
- K Abe
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - C Andreopoulos
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - M Antonova
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - S Aoki
- Kobe University, Kobe, Japan
| | - A Ariga
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - S Assylbekov
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - D Autiero
- Université de Lyon, Université Claude Bernard Lyon 1, IPN Lyon (IN2P3), Villeurbanne, France
| | - S Ban
- Department of Physics, Kyoto University, Kyoto, Japan
| | - M Barbi
- Department of Physics, University of Regina, Regina, Saskatchewan, Canada
| | - G J Barker
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - G Barr
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - P Bartet-Friburg
- UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France
| | - M Batkiewicz
- H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland
| | - F Bay
- ETH Zurich, Institute for Particle Physics, Zurich, Switzerland
| | - V Berardi
- INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy
| | - S Berkman
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - S Bhadra
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
| | - A Blondel
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | | | - S Bordoni
- Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain
| | - S B Boyd
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - D Brailsford
- Department of Physics, Imperial College London, London, United Kingdom
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - A Bravar
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - C Bronner
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - M Buizza Avanzini
- Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France
| | - R G Calland
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - T Campbell
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - S Cao
- Department of Physics, Kyoto University, Kyoto, Japan
| | - J Caravaca Rodríguez
- Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain
| | - S L Cartwright
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - R Castillo
- Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain
| | - M G Catanesi
- INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy
| | - A Cervera
- IFIC (CSIC & University of Valencia), Valencia, Spain
| | - D Cherdack
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - N Chikuma
- Department of Physics, University of Tokyo, Tokyo, Japan
| | - G Christodoulou
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - A Clifton
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - J Coleman
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - G Collazuol
- Dipartimento di Fisica, INFN Sezione di Padova and Università di Padova, Padova, Italy
| | - D Coplowe
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - L Cremonesi
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - A Dabrowska
- H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland
| | - G De Rosa
- Dipartimento di Fisica, INFN Sezione di Napoli and Università di Napoli, Napoli, Italy
| | - T Dealtry
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - P F Denner
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - S R Dennis
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - C Densham
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - D Dewhurst
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - F Di Lodovico
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - S Di Luise
- ETH Zurich, Institute for Particle Physics, Zurich, Switzerland
| | - S Dolan
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - O Drapier
- Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France
| | - K E Duffy
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - J Dumarchez
- UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France
| | - S Dytman
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - M Dziewiecki
- Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland
| | | | - A Ereditato
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - T Feusels
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - A J Finch
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - G A Fiorentini
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
| | - M Friend
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - Y Fujii
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - D Fukuda
- Department of Physics, Okayama University, Okayama, Japan
| | - Y Fukuda
- Department of Physics, Miyagi University of Education, Sendai, Japan
| | - A P Furmanski
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - V Galymov
- Université de Lyon, Université Claude Bernard Lyon 1, IPN Lyon (IN2P3), Villeurbanne, France
| | - A Garcia
- Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain
| | - S G Giffin
- Department of Physics, University of Regina, Regina, Saskatchewan, Canada
| | - C Giganti
- UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France
| | | | - M Gonin
- Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France
| | - N Grant
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - D R Hadley
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - L Haegel
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - M D Haigh
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - P Hamilton
- Department of Physics, Imperial College London, London, United Kingdom
| | - D Hansen
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - J Harada
- Department of Physics, Osaka City University, Osaka, Japan
| | - T Hara
- Kobe University, Kobe, Japan
| | - M Hartz
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- TRIUMF, Vancouver, British Columbia, Canada
| | - T Hasegawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - N C Hastings
- Department of Physics, University of Regina, Regina, Saskatchewan, Canada
| | - T Hayashino
- Department of Physics, Kyoto University, Kyoto, Japan
| | - Y Hayato
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - R L Helmer
- TRIUMF, Vancouver, British Columbia, Canada
| | - M Hierholzer
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - A Hillairet
- Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada
| | - A Himmel
- Department of Physics, Duke University, Durham, North Carolina, USA
| | - T Hiraki
- Department of Physics, Kyoto University, Kyoto, Japan
| | - S Hirota
- Department of Physics, Kyoto University, Kyoto, Japan
| | - M Hogan
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - J Holeczek
- Institute of Physics, University of Silesia, Katowice, Poland
| | - S Horikawa
- ETH Zurich, Institute for Particle Physics, Zurich, Switzerland
| | - F Hosomi
- Department of Physics, University of Tokyo, Tokyo, Japan
| | - K Huang
- Department of Physics, Kyoto University, Kyoto, Japan
| | - A K Ichikawa
- Department of Physics, Kyoto University, Kyoto, Japan
| | - K Ieki
- Department of Physics, Kyoto University, Kyoto, Japan
| | - M Ikeda
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - J Imber
- Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France
| | - J Insler
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
| | - R A Intonti
- INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy
| | - T J Irvine
- Institute for Cosmic Ray Research, University of Tokyo, Research Center for Cosmic Neutrinos, Kashiwa, Japan
| | - T Ishida
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - T Ishii
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - E Iwai
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - K Iwamoto
- Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA
| | - A Izmaylov
- IFIC (CSIC & University of Valencia), Valencia, Spain
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - A Jacob
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - B Jamieson
- Department of Physics, University of Winnipeg, Winnipeg, Manitoba, Canada
| | - M Jiang
- Department of Physics, Kyoto University, Kyoto, Japan
| | - S Johnson
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - J H Jo
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - P Jonsson
- Department of Physics, Imperial College London, London, United Kingdom
| | - C K Jung
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - M Kabirnezhad
- National Centre for Nuclear Research, Warsaw, Poland
| | - A C Kaboth
- Department of Physics, Royal Holloway University of London, Egham, Surrey, United Kingdom
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - T Kajita
- Institute for Cosmic Ray Research, University of Tokyo, Research Center for Cosmic Neutrinos, Kashiwa, Japan
| | - H Kakuno
- Tokyo Metropolitan University, Department of Physics, Tokyo, Japan
| | - J Kameda
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - D Karlen
- TRIUMF, Vancouver, British Columbia, Canada
- Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada
| | - I Karpikov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - T Katori
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - E Kearns
- Department of Physics, Boston University, Boston, Massachusetts, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - M Khabibullin
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - A Khotjantsev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - D Kielczewska
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - T Kikawa
- Department of Physics, Kyoto University, Kyoto, Japan
| | - H Kim
- Department of Physics, Osaka City University, Osaka, Japan
| | - J Kim
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - S King
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - J Kisiel
- Institute of Physics, University of Silesia, Katowice, Poland
| | - A Knight
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - A Knox
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - T Kobayashi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - L Koch
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - T Koga
- Department of Physics, University of Tokyo, Tokyo, Japan
| | - A Konaka
- TRIUMF, Vancouver, British Columbia, Canada
| | - K Kondo
- Department of Physics, Kyoto University, Kyoto, Japan
| | - A Kopylov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - L L Kormos
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - A Korzenev
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - Y Koshio
- Department of Physics, Okayama University, Okayama, Japan
| | - W Kropp
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA
| | - Y Kudenko
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - R Kurjata
- Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland
| | - T Kutter
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
| | - J Lagoda
- National Centre for Nuclear Research, Warsaw, Poland
| | - I Lamont
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - E Larkin
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - P Lasorak
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - M Laveder
- Dipartimento di Fisica, INFN Sezione di Padova and Università di Padova, Padova, Italy
| | - M Lawe
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - M Lazos
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - T Lindner
- TRIUMF, Vancouver, British Columbia, Canada
| | - Z J Liptak
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - R P Litchfield
- Department of Physics, Imperial College London, London, United Kingdom
| | - X Li
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - A Longhin
- Dipartimento di Fisica, INFN Sezione di Padova and Università di Padova, Padova, Italy
| | - J P Lopez
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - L Ludovici
- INFN Sezione di Roma and Università di Roma "La Sapienza", Roma, Italy
| | - X Lu
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - L Magaletti
- INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy
| | - K Mahn
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | - M Malek
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - S Manly
- Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA
| | - A D Marino
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - J Marteau
- Université de Lyon, Université Claude Bernard Lyon 1, IPN Lyon (IN2P3), Villeurbanne, France
| | - J F Martin
- Department of Physics, University of Toronto, Toronto, Ontario, Canada
| | - P Martins
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - S Martynenko
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - T Maruyama
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - V Matveev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - K Mavrokoridis
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - W Y Ma
- Department of Physics, Imperial College London, London, United Kingdom
| | | | - M McCarthy
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
| | - N McCauley
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - K S McFarland
- Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA
| | - C McGrew
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - A Mefodiev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - C Metelko
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - M Mezzetto
- Dipartimento di Fisica, INFN Sezione di Padova and Università di Padova, Padova, Italy
| | - P Mijakowski
- National Centre for Nuclear Research, Warsaw, Poland
| | - A Minamino
- Department of Physics, Kyoto University, Kyoto, Japan
| | - O Mineev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - S Mine
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA
| | - A Missert
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - M Miura
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - S Moriyama
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - Th A Mueller
- Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France
| | - S Murphy
- ETH Zurich, Institute for Particle Physics, Zurich, Switzerland
| | - J Myslik
- Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada
| | - T Nakadaira
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - M Nakahata
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - K G Nakamura
- Department of Physics, Kyoto University, Kyoto, Japan
| | - K Nakamura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - K D Nakamura
- Department of Physics, Kyoto University, Kyoto, Japan
| | - S Nakayama
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - T Nakaya
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Department of Physics, Kyoto University, Kyoto, Japan
| | - K Nakayoshi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - C Nantais
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - C Nielsen
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - M Nirkko
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - K Nishikawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - Y Nishimura
- Institute for Cosmic Ray Research, University of Tokyo, Research Center for Cosmic Neutrinos, Kashiwa, Japan
| | - P Novella
- IFIC (CSIC & University of Valencia), Valencia, Spain
| | - J Nowak
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - H M O'Keeffe
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - R Ohta
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - K Okumura
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Institute for Cosmic Ray Research, University of Tokyo, Research Center for Cosmic Neutrinos, Kashiwa, Japan
| | - T Okusawa
- Department of Physics, Osaka City University, Osaka, Japan
| | - W Oryszczak
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - S M Oser
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - T Ovsyannikova
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - R A Owen
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - Y Oyama
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - V Palladino
- Dipartimento di Fisica, INFN Sezione di Napoli and Università di Napoli, Napoli, Italy
| | - J L Palomino
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - V Paolone
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - N D Patel
- Department of Physics, Kyoto University, Kyoto, Japan
| | - M Pavin
- UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France
| | - D Payne
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - J D Perkin
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - Y Petrov
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - L Pickard
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - L Pickering
- Department of Physics, Imperial College London, London, United Kingdom
| | - E S Pinzon Guerra
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
| | - C Pistillo
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - B Popov
- UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France
| | | | | | | | - P Przewlocki
- National Centre for Nuclear Research, Warsaw, Poland
| | - B Quilain
- Department of Physics, Kyoto University, Kyoto, Japan
| | - T Radermacher
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - E Radicioni
- INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy
| | - P N Ratoff
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - M Ravonel
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - M A M Rayner
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - A Redij
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - E Reinherz-Aronis
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - C Riccio
- Dipartimento di Fisica, INFN Sezione di Napoli and Università di Napoli, Napoli, Italy
| | - P Rojas
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - E Rondio
- National Centre for Nuclear Research, Warsaw, Poland
| | - S Roth
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - A Rubbia
- ETH Zurich, Institute for Particle Physics, Zurich, Switzerland
| | - A Rychter
- Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland
| | - R Sacco
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - K Sakashita
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - F Sánchez
- Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain
| | - F Sato
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - E Scantamburlo
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - K Scholberg
- Department of Physics, Duke University, Durham, North Carolina, USA
| | - S Schoppmann
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - J Schwehr
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - M Scott
- TRIUMF, Vancouver, British Columbia, Canada
| | - Y Seiya
- Department of Physics, Osaka City University, Osaka, Japan
| | - T Sekiguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - H Sekiya
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - D Sgalaberna
- University of Geneva, Section de Physique, DPNC, Geneva, Switzerland
| | - R Shah
- Department of Physics, Oxford University, Oxford, United Kingdom
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - A Shaikhiev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - F Shaker
- Department of Physics, University of Winnipeg, Winnipeg, Manitoba, Canada
| | - D Shaw
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - M Shiozawa
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - T Shirahige
- Department of Physics, Okayama University, Okayama, Japan
| | - S Short
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - M Smy
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA
| | - J T Sobczyk
- Faculty of Physics and Astronomy, Wroclaw University, Wroclaw, Poland
| | - H Sobel
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - M Sorel
- IFIC (CSIC & University of Valencia), Valencia, Spain
| | - L Southwell
- Physics Department, Lancaster University, Lancaster, United Kingdom
| | - P Stamoulis
- IFIC (CSIC & University of Valencia), Valencia, Spain
| | - J Steinmann
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - T Stewart
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - P Stowell
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - Y Suda
- Department of Physics, University of Tokyo, Tokyo, Japan
| | - S Suvorov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | | | - K Suzuki
- Department of Physics, Kyoto University, Kyoto, Japan
| | - S Y Suzuki
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - Y Suzuki
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - R Tacik
- Department of Physics, University of Regina, Regina, Saskatchewan, Canada
- TRIUMF, Vancouver, British Columbia, Canada
| | - M Tada
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - S Takahashi
- Department of Physics, Kyoto University, Kyoto, Japan
| | - A Takeda
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - Y Takeuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
- Kobe University, Kobe, Japan
| | - H K Tanaka
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - H A Tanaka
- Department of Physics, University of Toronto, Toronto, Ontario, Canada
- TRIUMF, Vancouver, British Columbia, Canada
| | - D Terhorst
- RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
| | - R Terri
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - T Thakore
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
| | - L F Thompson
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - S Tobayama
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - W Toki
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - T Tomura
- Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan
| | - C Touramanis
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - T Tsukamoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - M Tzanov
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Y Uchida
- Department of Physics, Imperial College London, London, United Kingdom
| | - A Vacheret
- Department of Physics, Oxford University, Oxford, United Kingdom
| | - M Vagins
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba, Japan
| | - Z Vallari
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - G Vasseur
- IRFU, CEA Saclay, Gif-sur-Yvette, France
| | - T Wachala
- H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland
| | - K Wakamatsu
- Department of Physics, Osaka City University, Osaka, Japan
| | - C W Walter
- Department of Physics, Duke University, Durham, North Carolina, USA
| | - D Wark
- Department of Physics, Oxford University, Oxford, United Kingdom
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - W Warzycha
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - M O Wascko
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
- Department of Physics, Imperial College London, London, United Kingdom
| | - A Weber
- Department of Physics, Oxford University, Oxford, United Kingdom
- STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom
| | - R Wendell
- Department of Physics, Kyoto University, Kyoto, Japan
| | - R J Wilkes
- Department of Physics, University of Washington, Seattle, Washington, USA
| | - M J Wilking
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - C Wilkinson
- University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland
| | - J R Wilson
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - R J Wilson
- Department of Physics, Colorado State University, Fort Collins, Colorado, USA
| | - Y Yamada
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - K Yamamoto
- Department of Physics, Osaka City University, Osaka, Japan
| | - M Yamamoto
- Department of Physics, Kyoto University, Kyoto, Japan
| | - C Yanagisawa
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA
| | - T Yano
- Kobe University, Kobe, Japan
| | - S Yen
- TRIUMF, Vancouver, British Columbia, Canada
| | - N Yershov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - M Yokoyama
- Department of Physics, University of Tokyo, Tokyo, Japan
| | - J Yoo
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA
| | - K Yoshida
- Department of Physics, Kyoto University, Kyoto, Japan
| | - T Yuan
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - M Yu
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada
| | - A Zalewska
- H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland
| | - J Zalipska
- National Centre for Nuclear Research, Warsaw, Poland
| | - L Zambelli
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan
| | - K Zaremba
- Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland
| | - M Ziembicki
- Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland
| | - E D Zimmerman
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA
| | - M Zito
- IRFU, CEA Saclay, Gif-sur-Yvette, France
| | - J Żmuda
- Faculty of Physics and Astronomy, Wroclaw University, Wroclaw, Poland
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7
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Wang Z, Marshall CM, Aliaga L, Altinok O, Bellantoni L, Bercellie A, Betancourt M, Bodek A, Bravar A, Budd H, Cai T, Carneiro MF, da Motta H, Dytman SA, Díaz GA, Eberly B, Endress E, Felix J, Fields L, Fine R, Galindo R, Gallagher H, Ghosh A, Golan T, Gran R, Harris DA, Higuera A, Hurtado K, Kiveni M, Kleykamp J, Kordosky M, Le T, Maher E, Manly S, Mann WA, Martinez Caicedo DA, McFarland KS, McGivern CL, McGowan AM, Messerly B, Miller J, Mislivec A, Morfín JG, Mousseau J, Naples D, Nelson JK, Norrick A, Paolone V, Park J, Patrick CE, Perdue GN, Rakotondravohitra L, Ramirez MA, Ransome RD, Ray H, Ren L, Rimal D, Rodrigues PA, Ruterbories D, Schellman H, Schmitz DW, Simon C, Solano Salinas CJ, Tice BG, Valencia E, Walton T, Wolcott J, Wospakrik M, Zavala G, Zhang D. Evidence of Coherent K^{+} Meson Production in Neutrino-Nucleus Scattering. PHYSICAL REVIEW LETTERS 2016; 117:061802. [PMID: 27541459 DOI: 10.1103/physrevlett.117.061802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Indexed: 06/06/2023]
Abstract
Neutrino-induced charged-current coherent kaon production ν_{μ}A→μ^{-}K^{+}A is a rare, inelastic electroweak process that brings a K^{+} on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K^{+}, μ^{-}, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. We find the first experimental evidence for the process at 3σ significance.
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Affiliation(s)
- Z Wang
- University of Rochester, Rochester, New York 14627, USA
| | - C M Marshall
- University of Rochester, Rochester, New York 14627, USA
| | - L Aliaga
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - O Altinok
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - L Bellantoni
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bercellie
- University of Rochester, Rochester, New York 14627, USA
| | - M Betancourt
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bodek
- University of Rochester, Rochester, New York 14627, USA
| | - A Bravar
- University of Geneva, 1211 Geneva 4, Switzerland
| | - H Budd
- University of Rochester, Rochester, New York 14627, USA
| | - T Cai
- University of Rochester, Rochester, New York 14627, USA
| | - M F Carneiro
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - H da Motta
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - S A Dytman
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - G A Díaz
- University of Rochester, Rochester, New York 14627, USA
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - B Eberly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - E Endress
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - J Felix
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - L Fields
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Northwestern University, Evanston, Illinois 60208, USA
| | - R Fine
- University of Rochester, Rochester, New York 14627, USA
| | - R Galindo
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Casilla 110-V, Valparaíso, Chile
| | - H Gallagher
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - A Ghosh
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Casilla 110-V, Valparaíso, Chile
| | - T Golan
- University of Rochester, Rochester, New York 14627, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Gran
- Department of Physics, University of Minnesota, Duluth, Duluth, Minnesota 55812, USA
| | - D A Harris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Higuera
- University of Rochester, Rochester, New York 14627, USA
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - K Hurtado
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
- Universidad Nacional de Ingeniería, Apartado 31139, Lima, Perú
| | - M Kiveni
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Kleykamp
- University of Rochester, Rochester, New York 14627, USA
| | - M Kordosky
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
| | - T Le
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - E Maher
- Massachusetts College of Liberal Arts, 375 Church Street, North Adams, Massachusetts 01247, USA
| | - S Manly
- University of Rochester, Rochester, New York 14627, USA
| | - W A Mann
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - D A Martinez Caicedo
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - K S McFarland
- University of Rochester, Rochester, New York 14627, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C L McGivern
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A M McGowan
- University of Rochester, Rochester, New York 14627, USA
| | - B Messerly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Miller
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Casilla 110-V, Valparaíso, Chile
| | - A Mislivec
- University of Rochester, Rochester, New York 14627, USA
| | - J G Morfín
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Mousseau
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - D Naples
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J K Nelson
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Norrick
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
| | - V Paolone
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Park
- University of Rochester, Rochester, New York 14627, USA
| | - C E Patrick
- Northwestern University, Evanston, Illinois 60208, USA
| | - G N Perdue
- University of Rochester, Rochester, New York 14627, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - M A Ramirez
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - H Ray
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - L Ren
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - D Rimal
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - P A Rodrigues
- University of Rochester, Rochester, New York 14627, USA
| | - D Ruterbories
- University of Rochester, Rochester, New York 14627, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois 60208, USA
- Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
| | - D W Schmitz
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - C Simon
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | | | - B G Tice
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - E Valencia
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - T Walton
- Hampton University, Department of Physics, Hampton, Virginia 23668, USA
| | - J Wolcott
- University of Rochester, Rochester, New York 14627, USA
| | - M Wospakrik
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - G Zavala
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, Mexico
| | - D Zhang
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
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8
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Higuera A, Mislivec A, Aliaga L, Altinok O, Bercellie A, Betancourt M, Bodek A, Bravar A, Brooks WK, Budd H, Butkevich A, Carneiro MF, Castromonte CM, Christy ME, Chvojka J, da Motta H, Devan J, Dytman SA, Díaz GA, Eberly B, Felix J, Fields L, Fine R, Fiorentini GA, Gallagher H, Gomez A, Gran R, Harris DA, Hurtado K, Kleykamp J, Kordosky M, Le T, Maher E, Manly S, Mann WA, Marshall CM, Martinez Caicedo DA, McFarland KS, McGivern CL, McGowan AM, Messerly B, Miller J, Morfín JG, Mousseau J, Muhlbeier T, Naples D, Nelson JK, Norrick A, Osta J, Palomino JL, Paolone V, Park J, Patrick CE, Perdue GN, Ransome RD, Ray H, Ren L, Rodrigues PA, Ruterbories D, Schellman H, Schmitz DW, Snider FD, Solano Salinas CJ, Tagg N, Tice BG, Valencia E, Walton T, Wolcott J, Wospakrik M, Zavala G, Zhang D, Ziemer BP. Measurement of coherent production of π(±) in neutrino and antineutrino beams on carbon from Eν of 1.5 to 20 GeV. PHYSICAL REVIEW LETTERS 2014; 113:261802. [PMID: 25615308 DOI: 10.1103/physrevlett.113.261802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Indexed: 06/04/2023]
Abstract
Neutrino-induced coherent charged pion production on nuclei νμA→μ(±)π(∓)A is a rare, inelastic interaction in which a small squared four-momentum |t| is transferred to the recoil nucleus, leaving it intact in the reaction. In the scintillator tracker of MINERvA, we remove events with evidence of particles from nuclear breakup and reconstruct |t| from the final-state pion and muon. We select low |t| events to isolate a sample rich in coherent candidates. By selecting low |t| events, we produce a model-independent measurement of the differential cross section for coherent scattering of neutrinos and antineutrinos on carbon. We find poor agreement with the predicted kinematics in neutrino generators used by current oscillation experiments.
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Affiliation(s)
- A Higuera
- University of Rochester, Rochester, New York 14627, USA and Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, México
| | - A Mislivec
- University of Rochester, Rochester, New York 14627, USA
| | - L Aliaga
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA and Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - O Altinok
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - A Bercellie
- University of Rochester, Rochester, New York 14627, USA
| | - M Betancourt
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Bodek
- University of Rochester, Rochester, New York 14627, USA
| | - A Bravar
- University of Geneva, 1211 Geneva 4, Switzerland
| | - W K Brooks
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680 Casilla 110-V, Valparaíso, Chile
| | - H Budd
- University of Rochester, Rochester, New York 14627, USA
| | - A Butkevich
- Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia
| | - M F Carneiro
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - C M Castromonte
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - M E Christy
- Department of Physics, Hampton University, Hampton, Virginia 23668, USA
| | - J Chvojka
- University of Rochester, Rochester, New York 14627, USA
| | - H da Motta
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - J Devan
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - S A Dytman
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - G A Díaz
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - B Eberly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Felix
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, México
| | - L Fields
- Northwestern University, Evanston, Illinois 60208, USA
| | - R Fine
- University of Rochester, Rochester, New York 14627, USA
| | - G A Fiorentini
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - H Gallagher
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - A Gomez
- University of Rochester, Rochester, New York 14627, USA
| | - R Gran
- Department of Physics, University of Minnesota, Duluth, Duluth, Minnesota 55812, USA
| | - D A Harris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K Hurtado
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil and Universidad Nacional de Ingeniería, Apartado 31139, Lima, Peru
| | - J Kleykamp
- University of Rochester, Rochester, New York 14627, USA
| | - M Kordosky
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - T Le
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - E Maher
- Massachusetts College of Liberal Arts, 375 Church Street, North Adams, Massachusetts 01247, USA
| | - S Manly
- University of Rochester, Rochester, New York 14627, USA
| | - W A Mann
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - C M Marshall
- University of Rochester, Rochester, New York 14627, USA
| | - D A Martinez Caicedo
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - K S McFarland
- University of Rochester, Rochester, New York 14627, USA and Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - C L McGivern
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A M McGowan
- University of Rochester, Rochester, New York 14627, USA
| | - B Messerly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Miller
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680 Casilla 110-V, Valparaíso, Chile
| | - J G Morfín
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Mousseau
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - T Muhlbeier
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - D Naples
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J K Nelson
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - A Norrick
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Osta
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J L Palomino
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - V Paolone
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Park
- University of Rochester, Rochester, New York 14627, USA
| | - C E Patrick
- Northwestern University, Evanston, Illinois 60208, USA
| | - G N Perdue
- University of Rochester, Rochester, New York 14627, USA and Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - H Ray
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - L Ren
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - P A Rodrigues
- University of Rochester, Rochester, New York 14627, USA
| | - D Ruterbories
- University of Rochester, Rochester, New York 14627, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois 60208, USA
| | - D W Schmitz
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - F D Snider
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - N Tagg
- Department of Physics, Otterbein University, 1 South Grove Street, Westerville, Ohio 43081, USA
| | - B G Tice
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - E Valencia
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, México
| | - T Walton
- Department of Physics, Hampton University, Hampton, Virginia 23668, USA
| | - J Wolcott
- University of Rochester, Rochester, New York 14627, USA
| | - M Wospakrik
- University of Florida, Department of Physics, Gainesville, Florida 32611, USA
| | - G Zavala
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato, México
| | - D Zhang
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - B P Ziemer
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
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