On the decaying-sterile-neutrino solution to the electron (anti)neutrino appearance anomalies
André de Gouvêa, O. L. G. Peres, Suprabh Prakash and G. V. Stenico
ARTIGO
Inglês
Agradecimentos: We thank Mona Dentler, Ivan Esteban, Joachim Kopp, and Pedro Machado for sharing their analysis of the decaying-sterile-neutrino hypothesis before it became available on the arXivs. G.V.S. acknowledges useful discussions with Pedro Pasquini. The work of A.d.G. was supported in part...
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Agradecimentos: We thank Mona Dentler, Ivan Esteban, Joachim Kopp, and Pedro Machado for sharing their analysis of the decaying-sterile-neutrino hypothesis before it became available on the arXivs. G.V.S. acknowledges useful discussions with Pedro Pasquini. The work of A.d.G. was supported in part by DOE grant #de-sc0010143. O.L.G.P. is thankful for the support of FAPESP funding Grant No. 2014/19164-6, FAEPEX funding grant 2391/2017 and 2541/2019, CNPq grants 304715/2016-6 and 306565/2019-6. S.P. thanks the support of the FAPESP funding grant No. 2017/02361-1. G.V.S. is thankful for the support of FAPESP funding Grant No. 2016/00272-9 and No. 2017/12904-2 and FAEPEX funding grant 2925/19. G.V.S. thanks the partial support of FERMILAB-UNICAMP exchange agreement
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Abstract: We explore the hypothesis that the unexplained data from Liquid Scintillator Neutrino Detector (LSND) and MiniBooNE experiments are evidence for a new, heavy neutrino mass-eigenstate that mixes with the muon-type neutrino and decays into an electron-type neutrino and a new, very light...
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Abstract: We explore the hypothesis that the unexplained data from Liquid Scintillator Neutrino Detector (LSND) and MiniBooNE experiments are evidence for a new, heavy neutrino mass-eigenstate that mixes with the muon-type neutrino and decays into an electron-type neutrino and a new, very light scalar particle. We consider two different decay scenarios, one with Majorana neutrinos, one with Dirac neutrinos; both fit the data equally well. We find a reasonable, albeit not excellent, fit to the data of MiniBooNE and LSND. The decaying-sterile-neutrino hypothesis, however, cleanly evades constraints from disappearance searches and precision measurements of leptonic meson decays, as long as 1 MeV greater than or similar to m(4) greater than or similar to 10 keV. The Short-Baseline Neutrino Program (SBN) at Fermilab should be able to definitively test the decaying-sterile-neutrino hypothesis
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FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2014/19164-6; 2016/00272-9; 2017/02361-1; 2017/12904-2
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
304715/2016-6; 306565/2019-6
Aberto
On the decaying-sterile-neutrino solution to the electron (anti)neutrino appearance anomalies
André de Gouvêa, O. L. G. Peres, Suprabh Prakash and G. V. Stenico
On the decaying-sterile-neutrino solution to the electron (anti)neutrino appearance anomalies
André de Gouvêa, O. L. G. Peres, Suprabh Prakash and G. V. Stenico
Fontes
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Journal of high energy physics N. 7 (July, 2020), n. art. 141, p. 1-26 |