2017/08/31 by Martín Arteaga, Enrico Bertuzzo, Yuber F. Perez-Gonzalez +2 · 14 citations
Physics and Astronomy · #Astrophysics #COSMIC cancer database #Cosmic neutrino background #Dark Matter and Cosmic Phenomena #Dirac (video compression format) #Gauge (firearms) #MAJORANA #Measurements of neutrino speed #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Solar neutrino #Standard Model (mathematical formulation) #astro-ph.CO #hep-ph
paper · pdf · doi:10.1007/jhep09(2017)124
published in Journal of High Energy Physics 2017(9) (Springer Nature) · Version published in JHEP. Some comments and references added
openalex publication_date 2017/09/01 · openalex created_date 2017/09/15 · arxiv created 2017/09/26 · arxiv updated 2017/09/28 · openalex updated_date 2026/08/05
We discuss the effect of Beyond the Standard Model charged current interactions on the detection of the Cosmic Neutrino Background by neutrino capture on tritium in a PTOLEMY-like detector. We show that the total capture rate can be substantially modified for Dirac neutrinos if scalar or tensor right-chiral currents, with strength consistent with current experimental bounds, are at play. We find that the total capture rate for Dirac neutrinos, Γ D BSM , can be between 0.3 to 2.2 of what is expected for Dirac neutrinos in the Standard Model, Γ D SM , so that it can be made as large as the rate expected for Majorana neutrinos with only Standard Model interactions. A non-negligible primordial abundance of right-handed neutrinos can only worsen the situation, increasing Γ D BSM by 30 to 90%. On the other hand, if a much lower total rate is measured than what is expected for Γ D SM , it may be a sign of new physics.