Unexplained Excess of Electronlike Events from a 1-GeV Neutrino Beam

Aguilar-Arevalo, A. A.; Anderson, Carl E.; Bazarko, A. O.; Brice, S. J.; Brown, Bruce; Bugel, L.; Cao, Junpeng; Coney, L.; Conrad, J. M.; Cox, D. C.; Curioni, A.; Djurcic, Z.; Finley, D. A.; Fleming, B. T.; Ford, R.; García, F.; Garvey, G. T.; Green, C.; Green, J. A.; Hart, T.; Hawker, E.; Imlay, R.; Johnson, R. A.; Karagiorgi, G.; Kasper, P. A.; Katori, T.; Kobilarcik, T.; Kourbanis, I.; Koutsoliotas, S.; Laird, E.; Linden, S. K.; Link, J. M.; Liu, Y.; Louis, W. C.; Mahn, Kendall; Marsh, W.; McGregor, G.; Metcalf, W.; Meyers, P. D.; Mills, F.; Mills, G. B.; Monroe, J.; Moore, C. D.; Nelson, Robert H.; Nguyen, V.; Nienaber, P.; Nowak, J.; 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, Hirohisa; Tayloe, R.; Tzanov, M.; Water, R. G. Van de; Wascko, M. O.; White, D. H.; Wilking, M. J.; Yang, H. J.; Zeller, G. P.; Zimmerman, E. D.

doi:10.1103/physrevlett.102.101802

Cited by 348 publications

(245 citation statements)

References 34 publications

Supporting

Mentioning

227

Contrasting

Unclassified

Order By: Relevance

“…Thus, our scenario is consistent with a null-result in MiniBooNE, as observed in the energy range E > 475 MeV [30,31]. The low-energy event excess between 200 and 475 MeV [40] is not explained since the transition probability is already highly suppressed in that regime. It…”

Section: )supporting

confidence: 76%

Revisiting the quantum decoherence scenario as an explanation for the LSND anomaly

Bakhti

Farzan

Schwetz

2015

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We propose an explanation for the LSND anomaly based on quantum decoherence, postulating an exponential behavior for the decoherence parameters as a function of the neutrino energy. Within this ansatz decoherence effects are suppressed for neutrino energies above 200 MeV as well as around and below few MeV, restricting deviations from standard three-flavour oscillations only to the LSND energy range of 20-50 MeV. The scenario is consistent with the global data on neutrino oscillations, alleviates the tension between LSND and KARMEN, and predicts a null-result for MiniBooNE. No sterile neutrinos are introduced, conflict with cosmology is avoided, and no tension between short-baseline appearance and disappearance data arises. The proposal can be tested at planned reactor experiments with baselines of around 50 km, such as JUNO or RENO-50.

show abstract

Section: )supporting

confidence: 76%

Revisiting the quantum decoherence scenario as an explanation for the LSND anomaly

Bakhti

Farzan

Schwetz

2015

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…Additionally, the backgrounds below 500 MeV are of some concern, especially in light of the MiniBooNE low energy excess [103]. Because of the background uncertainty, along with signal which is less reliable, we decided to add an extra con-servative systematic error to the backgrounds.…”

Section: Reconstructed ν Energy (Mev)mentioning

confidence: 99%

Indication of Electron Neutrino Appearance from an Accelerator-Produced Off-Axis Muon Neutrino Beam

Abe¹,

Abgrall²,

Ajima³

et al. 2011

Phys. Rev. Lett.

Self Cite

1,189

627

View full text Add to dashboard Cite

T2K (Tokai to Kamioka) is a long baseline neutrino experiment with the primary goal of measuring the neutrino mixing angle θ 13 . It uses a muon neutrino beam, produced at the J-PARC accelerator facility in Tokai, sent through a near detector complex on its way to the far detector, Super-Kamiokande. Appearance of electron neutrinos at the far detector due to oscillation is used to measure the value of θ 13 .

show abstract

“…Take MiniBooNE (Aguilar-Arevalo et al, 2009;2010), for example; the median energy of the neutrino (antineutrino) beam is around 0.6 (0.5) GeV, and the highenergy tail extends up to 2 GeV. In this regime, the ∆ is the most important resonance for the interaction mechanism, except in the very low-energy region.…”

Section: Weak Production Of Pions From Nuclei ∆ Dynamicsmentioning

confidence: 99%