Dirac and Majorana Neutrino Signatures of Primordial Black Holes [Slides]

Technical Report · Fri Oct 11 00:00:00 EDT 2019

DOI:https://doi.org/10.2172/1597056· OSTI ID:1597056

Perez-Gonzalez, Yuber F.  ^[1]; Lunardini, Cecilia ^[2]

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1. Northwestern Univ., Evanston, IL (United States)
2. Arizona State Univ., Tempe, AZ (United States)

BHs are sources of neutrinos in mass eigenstates. The PBH evaporation depends on whether neutrinos are Dirac or Majorana particles. In the Dirac scenario, there is not a helicity suppression of the emission of righthanded neutrinos. We derived a constraint on the initial PBH fraction given the measurement of Neff by Planck. For certain values, it is possible to ease the Hubble measurement tension. The diffuse flux of RH neutrinos can be large, but more careful analysis on its possible detection should be performed.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1597056
• Report Number(s): FERMILAB-SLIDES-19-063-T; oai:inspirehep.net:1778007; TRN: US2102704
• Resource Relation: Conference: Neutrino Platform Week 2019: Hot Topics in Neutrino Physics, CERN, Geneva (Switzerland), 7-11 Oct 2011
• Country of Publication: United States
• Language: English

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