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Phys Rev Lett. 2016 Nov 4;117(19):192501. Epub 2016 Nov 4.

Measurement of Coherent π^{+} Production in Low Energy Neutrino-Carbon Scattering.

Abe K1, Andreopoulos C2,3, Antonova M4, Aoki S5, Ariga A6, Assylbekov S7, Autiero D8, Ban S9, Barbi M10, Barker GJ11, Barr G12, Bartet-Friburg P13, Batkiewicz M14, Bay F15, Berardi V16, Berkman S17, Bhadra S18, Blondel A19, Bolognesi S20, Bordoni S21, Boyd SB11, Brailsford D22,23, Bravar A19, Bronner C24, Buizza Avanzini M25, Calland RG24, Campbell T7, Cao S9, Caravaca Rodríguez J21, Cartwright SL26, Castillo R21, Catanesi MG16, Cervera A27, Cherdack D7, Chikuma N28, Christodoulou G2, Clifton A7, Coleman J2, Collazuol G29, Coplowe D12, Cremonesi L30, Dabrowska A14, De Rosa G31, Dealtry T23, Denner PF11, Dennis SR2, Densham C3, Dewhurst D12, Di Lodovico F30, Di Luise S15, Dolan S12, Drapier O25, Duffy KE12, Dumarchez J13, Dytman S32, Dziewiecki M33, Emery-Schrenk S20, Ereditato A6, Feusels T17, Finch AJ23, Fiorentini GA18, Friend M34, Fujii Y34, Fukuda D35, Fukuda Y36, Furmanski AP11, Galymov V8, Garcia A21, Giffin SG10, Giganti C13, Gizzarelli F20, Gonin M25, Grant N23, Hadley DR11, Haegel L19, Haigh MD11, Hamilton P22, Hansen D32, Harada J37, Hara T5, Hartz M24,38, Hasegawa T34, Hastings NC10, Hayashino T9, Hayato Y24,1, Helmer RL38, Hierholzer M6, Hillairet A39, Himmel A40, Hiraki T9, Hirota S9, Hogan M7, Holeczek J41, Horikawa S15, Hosomi F28, Huang K9, Ichikawa AK9, Ieki K9, Ikeda M1, Imber J25, Insler J42, Intonti RA16, Irvine TJ43, Ishida T34, Ishii T34, Iwai E34, Iwamoto K44, Izmaylov A27,4, Jacob A12, Jamieson B45, Jiang M9, Johnson S46, Jo JH47, Jonsson P22, Jung CK47, Kabirnezhad M48, Kaboth AC49,3, Kajita T43, Kakuno H50, Kameda J1, Karlen D38,39, Karpikov I4, Katori T30, Kearns E51,24, Khabibullin M4, Khotjantsev A4, Kielczewska D52, Kikawa T9, Kim H37, Kim J17, King S30, Kisiel J41, Knight A11, Knox A23, Kobayashi T34, Koch L53, Koga T28, Konaka A38, Kondo K9, Kopylov A4, Kormos LL23, Korzenev A19, Koshio Y35, Kropp W54, Kudenko Y4, Kurjata R33, Kutter T42, Lagoda J48, Lamont I23, Larkin E11, Lasorak P30, Laveder M29, Lawe M23, Lazos M2, Lindner T38, Liptak ZJ46, Litchfield RP22, Li X47, Longhin A29, Lopez JP46, Ludovici L55, Lu X12, Magaletti L16, Mahn K56, Malek M26, Manly S44, Marino AD46, Marteau J8, Martin JF57, Martins P30, Martynenko S47, Maruyama T34, Matveev V4, Mavrokoridis K2, Ma WY22, Mazzucato E20, McCarthy M18, McCauley N2, McFarland KS44, McGrew C47, Mefodiev A4, Metelko C2, Mezzetto M29, Mijakowski P48, Minamino A9, Mineev O4, Mine S54, Missert A46, Miura M1, Moriyama S1, Mueller TA25, Murphy S15, Myslik J39, Nakadaira T34, Nakahata M24,1, Nakamura KG9, Nakamura K34,24, Nakamura KD9, Nakayama S1, Nakaya T24,9, Nakayoshi K34, Nantais C17, Nielsen C17, Nirkko M6, Nishikawa K34, Nishimura Y43, Novella P27, Nowak J23, O'Keeffe HM23, Ohta R34, Okumura K24,43, Okusawa T37, Oryszczak W52, Oser SM17, Ovsyannikova T4, Owen RA30, Oyama Y34, Palladino V31, Palomino JL47, Paolone V32, Patel ND9, Pavin M13, Payne D2, Perkin JD26, Petrov Y17, Pickard L26, Pickering L22, Pinzon Guerra ES18, Pistillo C6, Popov B13, Posiadala-Zezula M52, Poutissou JM38, Poutissou R38, Przewlocki P48, Quilain B9, Radermacher T53, Radicioni E16, Ratoff PN23, Ravonel M19, Rayner MA19, Redij A6, Reinherz-Aronis E7, Riccio C31, Rojas P7, Rondio E48, Roth S53, Rubbia A15, Rychter A33, Sacco R30, Sakashita K34, Sánchez F21, Sato F34, Scantamburlo E19, Scholberg K40, Schoppmann S53, Schwehr J7, Scott M38, Seiya Y37, Sekiguchi T34, Sekiya H24,1, Sgalaberna D19, Shah R12,3, Shaikhiev A4, Shaker F45, Shaw D23, Shiozawa M24,1, Shirahige T35, Short S30, Smy M54, Sobczyk JT58, Sobel H54,24, Sorel M27, Southwell L23, Stamoulis P27, Steinmann J53, Stewart T3, Stowell P26, Suda Y28, Suvorov S4, Suzuki A5, Suzuki K9, Suzuki SY34, Suzuki Y24, Tacik R10,38, Tada M34, Takahashi S9, Takeda A1, Takeuchi Y24,5, Tanaka HK1, Tanaka HA57,38, Terhorst D53, Terri R30, Thakore T42, Thompson LF26, Tobayama S17, Toki W7, Tomura T1, Touramanis C2, Tsukamoto T34, Tzanov M42, Uchida Y22, Vacheret A12, Vagins M54,24, Vallari Z47, Vasseur G20, Wachala T14, Wakamatsu K37, Walter CW40, Wark D12,3, Warzycha W52, Wascko MO34,22, Weber A12,3, Wendell R9, Wilkes RJ59, Wilking MJ47, Wilkinson C6, Wilson JR30, Wilson RJ7, Yamada Y34, Yamamoto K37, Yamamoto M9, Yanagisawa C47, Yano T5, Yen S38, Yershov N4, Yokoyama M28, Yoo J42, Yoshida K9, Yuan T46, Yu M18, Zalewska A14, Zalipska J48, Zambelli L34, Zaremba K33, Ziembicki M33, Zimmerman ED46, Zito M20, Żmuda J58; T2K Collaboration.

Author information

1
Institute for Cosmic Ray Research, University of Tokyo, Kamioka Observatory, Kamioka, Japan.
2
Department of Physics, University of Liverpool, Liverpool, United Kingdom.
3
STFC, Rutherford Appleton Laboratory, Harwell Oxford, and Daresbury Laboratory, Warrington, United Kingdom.
4
Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.
5
Kobe University, Kobe, Japan.
6
University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics (LHEP), Bern, Switzerland.
7
Department of Physics, Colorado State University, Fort Collins, Colorado, USA.
8
Université de Lyon, Université Claude Bernard Lyon 1, IPN Lyon (IN2P3), Villeurbanne, France.
9
Department of Physics, Kyoto University, Kyoto, Japan.
10
Department of Physics, University of Regina, Regina, Saskatchewan, Canada.
11
Department of Physics, University of Warwick, Coventry, United Kingdom.
12
Department of Physics, Oxford University, Oxford, United Kingdom.
13
UPMC, Université Paris Diderot, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Paris, France.
14
H. Niewodniczanski Institute of Nuclear Physics PAN, Cracow, Poland.
15
ETH Zurich, Institute for Particle Physics, Zurich, Switzerland.
16
INFN Sezione di Bari and Università e Politecnico di Bari, Dipartimento Interuniversitario di Fisica, Bari, Italy.
17
Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.
18
Department of Physics and Astronomy, York University, Toronto, Ontario, Canada.
19
University of Geneva, Section de Physique, DPNC, Geneva, Switzerland.
20
IRFU, CEA Saclay, Gif-sur-Yvette, France.
21
Institut de Fisica d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra (Barcelona), Spain.
22
Department of Physics, Imperial College London, London, United Kingdom.
23
Physics Department, Lancaster University, Lancaster, United Kingdom.
24
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.
25
Ecole Polytechnique, IN2P3-CNRS, Laboratoire Leprince-Ringuet, Palaiseau, France.
26
Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.
27
IFIC (CSIC & University of Valencia), Valencia, Spain.
28
Department of Physics, University of Tokyo, Tokyo, Japan.
29
Dipartimento di Fisica, INFN Sezione di Padova and Università di Padova, Padova, Italy.
30
School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom.
31
Dipartimento di Fisica, INFN Sezione di Napoli and Università di Napoli, Napoli, Italy.
32
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
33
Institute of Radioelectronics, Warsaw University of Technology, Warsaw, Poland.
34
High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.
35
Department of Physics, Okayama University, Okayama, Japan.
36
Department of Physics, Miyagi University of Education, Sendai, Japan.
37
Department of Physics, Osaka City University, Osaka, Japan.
38
TRIUMF, Vancouver, British Columbia, Canada.
39
Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada.
40
Department of Physics, Duke University, Durham, North Carolina, USA.
41
Institute of Physics, University of Silesia, Katowice, Poland.
42
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, USA.
43
Institute for Cosmic Ray Research, University of Tokyo, Research Center for Cosmic Neutrinos, Kashiwa, Japan.
44
Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA.
45
Department of Physics, University of Winnipeg, Winnipeg, Manitoba, Canada.
46
Department of Physics, University of Colorado at Boulder, Boulder, Colorado, USA.
47
Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York, USA.
48
National Centre for Nuclear Research, Warsaw, Poland.
49
Department of Physics, Royal Holloway University of London, Egham, Surrey, United Kingdom.
50
Tokyo Metropolitan University, Department of Physics, Tokyo, Japan.
51
Department of Physics, Boston University, Boston, Massachusetts, USA.
52
Faculty of Physics, University of Warsaw, Warsaw, Poland.
53
RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany.
54
Department of Physics and Astronomy, University of California, Irvine, Irvine, California, USA.
55
INFN Sezione di Roma and Università di Roma "La Sapienza", Roma, Italy.
56
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA.
57
Department of Physics, University of Toronto, Toronto, Ontario, Canada.
58
Faculty of Physics and Astronomy, Wroclaw University, Wroclaw, Poland.
59
Department of Physics, University of Washington, Seattle, Washington, USA.

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.

MODELS:

PMID:
27858422
DOI:
10.1103/PhysRevLett.117.192501
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