Event excess in the MiniBooNE search for ν̄μ→ν̄e oscillations

A. A. Aguilar-Arevalo; C. E. Anderson; S. J. Brice; B. C. Brown; L. Bugel; J. M. Conrad; R. Dharmapalan; Z. Djurcic; B. T. Fleming; R. Ford; F. G. Garcia; G. T. Garvey; J. Mirabal; J. Grange; J. A. Green; R. Imlay; R. A. Johnson; G. Karagiorgi; T. Katori; T. Kobilarcik; S. K. Linden; W. C. Louis; K. B.M. Mahn; W. Marsh; C. Mauger; W. Metcalf; G. B. Mills; C. D. Moore; J. Mousseau; R. H. Nelson; V. Nguyen; P. Nienaber; J. A. Nowak; B. Osmanov; Z. Pavlovic; D. Perevalov; C. C. Polly; H. Ray; B. P. Roe; A. D. Russell; R. Schirato; M. H. Shaevitz; M. Sorel; J. Spitz; I. Stancu; R. J. Stefanski; R. Tayloe; M. Tzanov; R. G. Van De Water; M. O. Wascko; D. H. White; M. J. Wilking; G. P. Zeller; E. D. Zimmerman

doi:10.1103/PhysRevLett.105.181801

Event excess in the MiniBooNE search for ν̄μ→ν̄e oscillations

A. A. Aguilar-Arevalo, C. E. Anderson, S. J. Brice, B. C. Brown, L. Bugel, J. M. Conrad, R. Dharmapalan, Z. Djurcic, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, J. Mirabal, J. Grange, J. A. Green, R. Imlay, R. A. Johnson, G. Karagiorgi, T. Katori, T. KobilarcikS. K. Linden, W. C. Louis, K. B.M. Mahn, W. Marsh, C. Mauger, W. Metcalf, G. B. Mills, C. D. Moore, J. Mousseau, R. H. Nelson, V. Nguyen, P. Nienaber, J. A. Nowak, B. Osmanov, Z. Pavlovic, D. Perevalov, C. C. Polly, H. Ray, B. P. Roe, A. D. Russell, R. Schirato, M. H. Shaevitz, M. Sorel, J. Spitz, I. Stancu, R. J. Stefanski, R. Tayloe, M. Tzanov, R. G. Van De Water, M. O. Wascko, D. H. White, M. J. Wilking, G. P. Zeller, E. D. Zimmerman

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Abstract

The MiniBooNE experiment at Fermilab reports results from a search for ν̄μ→ν̄e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475<EνQE<1250MeV, which, when constrained by the observed ν̄μ events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ν̄μ→ν̄e oscillations, the best-fit point has a χ2 probability of 8.7%. The data are consistent with ν̄μ→ν̄ e oscillations in the 0.1 to 1.0eV2 Δm2 range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

Original language	English (US)
Article number	181801
Journal	Physical review letters
Volume	105
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.105.181801
State	Published - Oct 26 2010
Externally published	Yes

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10.1103/PhysRevLett.105.181801

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Aguilar-Arevalo, A. A., Anderson, C. E., Brice, S. J., Brown, B. C., Bugel, L., Conrad, J. M., Dharmapalan, R., Djurcic, Z., Fleming, B. T., Ford, R., Garcia, F. G., Garvey, G. T., Mirabal, J., Grange, J., Green, J. A., Imlay, R., Johnson, R. A., Karagiorgi, G., Katori, T., ... Zimmerman, E. D. (2010). Event excess in the MiniBooNE search for ν̄μ→ν̄e oscillations. Physical review letters, 105(18), Article 181801. https://doi.org/10.1103/PhysRevLett.105.181801

Aguilar-Arevalo, AA, Anderson, CE, Brice, SJ, Brown, BC, Bugel, L, Conrad, JM, Dharmapalan, R, Djurcic, Z, Fleming, BT, Ford, R, Garcia, FG, Garvey, GT, Mirabal, J, Grange, J, Green, JA, Imlay, R, Johnson, RA, Karagiorgi, G, Katori, T, Kobilarcik, T, Linden, SK, Louis, WC, Mahn, KBM, Marsh, W, Mauger, C, Metcalf, W, Mills, GB, Moore, CD, Mousseau, J, Nelson, RH, Nguyen, V, Nienaber, P, Nowak, JA, Osmanov, B, Pavlovic, Z, Perevalov, D, Polly, CC, Ray, H, Roe, BP, Russell, AD, Schirato, R, Shaevitz, MH, Sorel, M, Spitz, J, Stancu, I, Stefanski, RJ, Tayloe, R, Tzanov, M, Van De Water, RG, Wascko, MO, White, DH, Wilking, MJ, Zeller, GP & Zimmerman, ED 2010, 'Event excess in the MiniBooNE search for ν̄μ→ν̄e oscillations', Physical review letters, vol. 105, no. 18, 181801. https://doi.org/10.1103/PhysRevLett.105.181801

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abstract = "The MiniBooNE experiment at Fermilab reports results from a search for {\=ν}μ→{\=ν}e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475",

author = "Aguilar-Arevalo, {A. A.} and Anderson, {C. E.} and Brice, {S. J.} and Brown, {B. C.} and L. Bugel and Conrad, {J. M.} and R. Dharmapalan and Z. Djurcic and Fleming, {B. T.} and R. Ford and Garcia, {F. G.} and Garvey, {G. T.} and J. Mirabal and J. Grange and Green, {J. A.} and R. Imlay and Johnson, {R. A.} and G. Karagiorgi and T. Katori and T. Kobilarcik and Linden, {S. K.} and Louis, {W. C.} and Mahn, {K. B.M.} and W. Marsh and C. Mauger and W. Metcalf and Mills, {G. B.} and Moore, {C. D.} and J. Mousseau and Nelson, {R. H.} and V. Nguyen and P. Nienaber and Nowak, {J. A.} and B. Osmanov and Z. Pavlovic and D. Perevalov and Polly, {C. C.} and H. Ray and Roe, {B. P.} and Russell, {A. D.} and R. Schirato and Shaevitz, {M. H.} and M. Sorel and J. Spitz and I. Stancu and Stefanski, {R. J.} and R. Tayloe and M. Tzanov and {Van De Water}, {R. G.} and Wascko, {M. O.} and White, {D. H.} and Wilking, {M. J.} and Zeller, {G. P.} and Zimmerman, {E. D.}",

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AU - Anderson, C. E.

AU - Brice, S. J.

AU - Brown, B. C.

AU - Bugel, L.

AU - Conrad, J. M.

AU - Dharmapalan, R.

AU - Djurcic, Z.

AU - Fleming, B. T.

AU - Ford, R.

AU - Garcia, F. G.

AU - Garvey, G. T.

AU - Mirabal, J.

AU - Grange, J.

AU - Green, J. A.

AU - Imlay, R.

AU - Johnson, R. A.

AU - Karagiorgi, G.

AU - Katori, T.

AU - Kobilarcik, T.

AU - Linden, S. K.

AU - Louis, W. C.

AU - Mahn, K. B.M.

AU - Marsh, W.

AU - Mauger, C.

AU - Metcalf, W.

AU - Mills, G. B.

AU - Moore, C. D.

AU - Mousseau, J.

AU - Nelson, R. H.

AU - Nguyen, V.

AU - Nienaber, P.

AU - Nowak, J. A.

AU - Osmanov, B.

AU - Pavlovic, Z.

AU - Perevalov, D.

AU - Polly, C. C.

AU - Ray, H.

AU - Roe, B. P.

AU - Russell, A. D.

AU - Schirato, R.

AU - Shaevitz, M. H.

AU - Sorel, M.

AU - Spitz, J.

AU - Stancu, I.

AU - Stefanski, R. J.

AU - Tayloe, R.

AU - Tzanov, M.

AU - Van De Water, R. G.

AU - Wascko, M. O.

AU - White, D. H.

AU - Wilking, M. J.

AU - Zeller, G. P.

AU - Zimmerman, E. D.

PY - 2010/10/26

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AB - The MiniBooNE experiment at Fermilab reports results from a search for ν̄μ→ν̄e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475

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Event excess in the MiniBooNE search for ν̄μ→ν̄e oscillations

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