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Unexplained Excess of Electronlike Events from a 1-GeV Neutrino Beam
Open accessAbstract
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With $6.46\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of $415.2\ifmmode\pm\else\textpm\fi{}43.4$ events, corresponding to an excess of $128.8\ifmmode\pm\else\textpm\fi{}20.4\ifmmode\pm\else\textpm\fi{}38.3$ events. The shape of the excess in several kinematic variables is consistent with being due to either ${\ensuremath{\nu}}_{e}$ and ${\overline{\ensuremath{\nu}}}_{e}$ charged-current scattering or ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ 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 $385.9\ifmmode\pm\else\textpm\fi{}35.7$ events.
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Metadata
- Authors
- 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., Hart, T. L., Hawker, E., Imlay, R., Johnson, R. A., Karagiorgi, G., Kasper, P., Katori, T., Kobilarcik, T., Kourbanis, I., Koutsoliotas, S., Laird, E. M., Linden, S. K., Link, J. M., Liu, Y., Liu, Y., Louis, W. C., Mahn, K. B. M., Marsh, W., McGregor, G., Metcalf, W., Meyers, P. D., Mills, F., Mills, G. B., Monroe, J., Moore, C. D., Nelson, R. H., Nguyen, V. T., Nienaber, P., Nowak, J. A., Ouedraogo, S., Patterson, R. B., Perevalov, D., Polly, C. C., Prebys, E., Raaf, J. L., Ray, H., Roe, B. P., Russell, A. D., Sandberg, V., Schirato, R., Schmitz, D., Shaevitz, M. H., Shoemaker, F. C., Smith, D., Sodeberg, M., Sorel, M., Spentzouris, P., Stancu, I., Stefanski, R. J., Sung, M., Tanaka, H. A., Tayloe, R., Tzanov, M., Van de Water, R., Wascko, M. O., White, D. H., Wilking, M. J., Yang, H. J., Zeller, G. P., & Zimmerman, E. D.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-03-11
- Volume
- 102
- Issue
- 10
- Pages
- 101802-101802
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2129807146
- Cited by
- 367
- References
- 0
- FWCI
- 21.97
- Type
- journal article
- Language
- en
- Open access
- green
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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. https://doi.org/10.1103/physrevlett.102.101802
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