Unexplained excess of electronlike events from a 1-GeV neutrino beam

A. A. Aguilar-Arevalo; C. E. Anderson; A. O. Bazarko; S. J. Brice; B. C. Brown; L. Bugel; J. Cao; L. Coney; J. M. Conrad; D. C. Cox; A. Curioni; Z. Djurcic; D. A. Finley; B. T. Fleming; R. Ford; F. G. Garcia; G. T. Garvey; C. Green; J. A. Green; T. L. Hart; E. Hawker; R. Imlay; R. A. Johnson; G. Karagiorgi; P. Kasper; T. Katori; T. Kobilarcik; I. Kourbanis; S. Koutsoliotas; E. M. Laird; S. K. Linden; J. M. Link; Y. Liu; Y. Liu; W. C. Louis; K. B.M. Mahn; W. Marsh; G. McGregor; W. Metcalf; P. D. Meyers; F. Mills; G. B. Mills; J. Monroe; C. D. Moore; R. H. Nelson; V. T. Nguyen; P. Nienaber; J. A. Nowak; S. Ouedraogo; R. B. Patterson; D. Perevalov; C. C. Polly; E. Prebys; J. L. Raaf; H. Ray; B. P. Roe; A. D. Russell; V. Sandberg; R. Schirato; D. Schmitz; M. H. Shaevitz; F. C. Shoemaker; D. Smith; M. Sodeberg; M. Sorel; P. Spentzouris; I. Stancu; R. J. Stefanski; M. Sung; H. A. Tanaka; R. Tayloe; M. Tzanov; R. Van De Water; M. O. Wascko; D. H. White; M. J. Wilking; H. J. Yang; G. P. Zeller; E. D. Zimmerman

doi:10.1103/PhysRevLett.102.101802

Unexplained excess of electronlike events from a 1-GeV neutrino beam

A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, T. L. HartE. Hawker, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, Y. Liu, W. C. Louis, K. B.M. Mahn, W. Marsh, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, R. H. Nelson, V. T. Nguyen, P. Nienaber, J. A. Nowak, S. Ouedraogo, R. B. Patterson, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Sodeberg, M. Sorel, P. Spentzouris, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van De Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, E. D. Zimmerman

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Abstract

The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46×1020 protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2±43.4 events, corresponding to an excess of 128.8±20.4±38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either νe and ν̄e charged-current scattering or νμ neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9±35.7 events.

Original language	English (US)
Article number	101802
Journal	Physical Review Letters
Volume	102
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.102.101802
State	Published - Mar 9 2009
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.102.101802

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Aguilar-Arevalo, A. A., Anderson, C. E., Bazarko, A. O., Brice, S. J., Brown, B. C., Bugel, L., Cao, J., Coney, L., Conrad, J. M., Cox, D. C., Curioni, A., Djurcic, Z., Finley, D. A., Fleming, B. T., Ford, R., Garcia, F. G., Garvey, G. T., Green, C., Green, J. A., ... Zimmerman, E. D. (2009). Unexplained excess of electronlike events from a 1-GeV neutrino beam. Physical Review Letters, 102(10), Article 101802. https://doi.org/10.1103/PhysRevLett.102.101802

Aguilar-Arevalo, AA, Anderson, CE, Bazarko, AO, Brice, SJ, Brown, BC, Bugel, L, Cao, J, Coney, L, Conrad, JM, Cox, DC, Curioni, A, Djurcic, Z, Finley, DA, Fleming, BT, Ford, R, Garcia, FG, Garvey, GT, Green, C, Green, JA, Hart, TL, Hawker, E, Imlay, R, Johnson, RA, Karagiorgi, G, Kasper, P, Katori, T, Kobilarcik, T, Kourbanis, I, Koutsoliotas, S, Laird, EM, Linden, SK, Link, JM, Liu, Y, Liu, Y, Louis, WC, Mahn, KBM, Marsh, W, McGregor, G, Metcalf, W, Meyers, PD, Mills, F, Mills, GB, Monroe, J, Moore, CD, Nelson, RH, Nguyen, VT, Nienaber, P, Nowak, JA, Ouedraogo, S, Patterson, RB, Perevalov, D, Polly, CC, Prebys, E, Raaf, JL, Ray, H, Roe, BP, Russell, AD, Sandberg, V, Schirato, R, Schmitz, D, Shaevitz, MH, Shoemaker, FC, Smith, D, Sodeberg, M, Sorel, M, Spentzouris, P, Stancu, I, Stefanski, RJ, Sung, M, Tanaka, HA, Tayloe, R, Tzanov, M, Van De Water, R, Wascko, MO, White, DH, Wilking, MJ, Yang, HJ, Zeller, GP & Zimmerman, ED 2009, 'Unexplained excess of electronlike events from a 1-GeV neutrino beam', Physical Review Letters, vol. 102, no. 10, 101802. https://doi.org/10.1103/PhysRevLett.102.101802

@article{74ed0787681e4a54acfd8178bbae31ca,

title = "Unexplained excess of electronlike events from a 1-GeV neutrino beam",

abstract = "The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46×1020 protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2±43.4 events, corresponding to an excess of 128.8±20.4±38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either νe and {\=ν}e charged-current scattering or νμ neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9±35.7 events.",

author = "Aguilar-Arevalo, {A. A.} and Anderson, {C. E.} and Bazarko, {A. O.} and Brice, {S. J.} and Brown, {B. C.} and L. Bugel and J. Cao and L. Coney and Conrad, {J. M.} and Cox, {D. C.} and A. Curioni and Z. Djurcic and Finley, {D. A.} and Fleming, {B. T.} and R. Ford and Garcia, {F. G.} and Garvey, {G. T.} and C. Green and Green, {J. A.} and Hart, {T. L.} and E. Hawker and R. Imlay and Johnson, {R. A.} and G. Karagiorgi and P. Kasper and T. Katori and T. Kobilarcik and I. Kourbanis and S. Koutsoliotas and Laird, {E. M.} and Linden, {S. K.} and Link, {J. M.} and Y. Liu and Y. Liu and Louis, {W. C.} and Mahn, {K. B.M.} and W. Marsh and G. McGregor and W. Metcalf and Meyers, {P. D.} and F. Mills and Mills, {G. B.} and J. Monroe and Moore, {C. D.} and Nelson, {R. H.} and Nguyen, {V. T.} and P. Nienaber and Nowak, {J. A.} and S. Ouedraogo and Patterson, {R. B.} and D. Perevalov and Polly, {C. C.} and E. Prebys and Raaf, {J. L.} and H. Ray and Roe, {B. P.} and Russell, {A. D.} and V. Sandberg and R. Schirato and D. Schmitz and Shaevitz, {M. H.} and Shoemaker, {F. C.} and D. Smith and M. Sodeberg and M. Sorel and P. Spentzouris and I. Stancu and Stefanski, {R. J.} and M. Sung and Tanaka, {H. A.} and R. Tayloe and M. Tzanov and {Van De Water}, R. and Wascko, {M. O.} and White, {D. H.} and Wilking, {M. J.} and Yang, {H. J.} and Zeller, {G. P.} and Zimmerman, {E. D.}",

year = "2009",

month = mar,

day = "9",

doi = "10.1103/PhysRevLett.102.101802",

language = "English (US)",

volume = "102",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

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TY - JOUR

T1 - Unexplained excess of electronlike events from a 1-GeV neutrino beam

AU - Aguilar-Arevalo, A. A.

AU - Anderson, C. E.

AU - Bazarko, A. O.

AU - Brice, S. J.

AU - Brown, B. C.

AU - Bugel, L.

AU - Cao, J.

AU - Coney, L.

AU - Conrad, J. M.

AU - Cox, D. C.

AU - Curioni, A.

AU - Djurcic, Z.

AU - Finley, D. A.

AU - Fleming, B. T.

AU - Ford, R.

AU - Garcia, F. G.

AU - Garvey, G. T.

AU - Green, C.

AU - Green, J. A.

AU - Hart, T. L.

AU - Hawker, E.

AU - Imlay, R.

AU - Johnson, R. A.

AU - Karagiorgi, G.

AU - Kasper, P.

AU - Katori, T.

AU - Kobilarcik, T.

AU - Kourbanis, I.

AU - Koutsoliotas, S.

AU - Laird, E. M.

AU - Linden, S. K.

AU - Link, J. M.

AU - Liu, Y.

AU - Louis, W. C.

AU - Mahn, K. B.M.

AU - Marsh, W.

AU - McGregor, G.

AU - Metcalf, W.

AU - Meyers, P. D.

AU - Mills, F.

AU - Mills, G. B.

AU - Monroe, J.

AU - Moore, C. D.

AU - Nelson, R. H.

AU - Nguyen, V. T.

AU - Nienaber, P.

AU - Nowak, J. A.

AU - Ouedraogo, S.

AU - Patterson, R. B.

AU - Perevalov, D.

AU - Polly, C. C.

AU - Prebys, E.

AU - Raaf, J. L.

AU - Ray, H.

AU - Roe, B. P.

AU - Russell, A. D.

AU - Sandberg, V.

AU - Schirato, R.

AU - Schmitz, D.

AU - Shaevitz, M. H.

AU - Shoemaker, F. C.

AU - Smith, D.

AU - Sodeberg, M.

AU - Sorel, M.

AU - Spentzouris, P.

AU - Stancu, I.

AU - Stefanski, R. J.

AU - Sung, M.

AU - Tanaka, H. A.

AU - Tayloe, R.

AU - Tzanov, M.

AU - Van De Water, R.

AU - Wascko, M. O.

AU - White, D. H.

AU - Wilking, M. J.

AU - Yang, H. J.

AU - Zeller, G. P.

AU - Zimmerman, E. D.

PY - 2009/3/9

Y1 - 2009/3/9

N2 - The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46×1020 protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2±43.4 events, corresponding to an excess of 128.8±20.4±38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either νe and ν̄e charged-current scattering or νμ neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9±35.7 events.

AB - The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46×1020 protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2±43.4 events, corresponding to an excess of 128.8±20.4±38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either νe and ν̄e charged-current scattering or νμ neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9±35.7 events.

UR - http://www.scopus.com/inward/record.url?scp=63249119177&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63249119177&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.102.101802

DO - 10.1103/PhysRevLett.102.101802

M3 - Article

AN - SCOPUS:63249119177

SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 101802

ER -

Unexplained excess of electronlike events from a 1-GeV neutrino beam

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