Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly

M Ericson 1, 2 M Garzelli 3 C Giunti 4 M Martini 5
1 CERN - European Organization for Nuclear Research
2 IPNL - Institut de Physique Nucléaire de Lyon
3 Institute for Theoretical Physics, Hamburg University
4 INFN, Sezione di Torino - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
5 DPHN - Département de Physique Nucléaire (ex SPhN)
Abstract : We study the impact of the effect of multinucleon interactions in the reconstruction of the neutrino energy on the fit of the MiniBooNE data in terms of neutrino oscillations. We obtain some improvement of the fit of the MiniBooNE low-energy excess in the framework of two-neutrino oscillations and a shift of the allowed region in the sin 2 2ϑ-Δm 2 plane toward smaller values of sin 2 2ϑ and larger values of Δm 2. However, this effect is not enough to solve the problem of the appearance-disappearance tension in the global fit of short-baseline neutrino oscillation data.
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Physical Review D, American Physical Society, 2016, 93 (07), pp.073008. 〈10.1103/PhysRevD.93.073008〉
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M Ericson, M Garzelli, C Giunti, M Martini. Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly. Physical Review D, American Physical Society, 2016, 93 (07), pp.073008. 〈10.1103/PhysRevD.93.073008〉. 〈cea-01504817〉

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