Majorons and supernova cooling

Journal Article · Sun Jul 15 04:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.42.293· OSTI ID:6643937

Choi, K ^[1]; Santamaria, A ^[2]

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1. Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (USA)
2. Max-Planck-Institut fuer Physik und Astrophysik, Foehringer Ring 6, D-8000 Muenchen 40 (Germany)

We consider the role of Majoron emission in supernova cooling and its implications for the neutrino mass and lifetime in generic singlet Majoron models. It is found that, for {nu}{sub {tau}} with mass {ital m}, if the lifetime for the decay {nu}{sub {tau}}{r arrow}Majoron+{nu}{sub {ital e},{mu}} is shorter than 10{sup {minus}7} ({ital m}/MeV) sec, then Majorons are so strongly trapped by the inverse process that the resulting Majoron luminosity is small enough {ital not} to destabilize the observed {nu}{sub {ital e}} pulse from SN 1987A. For {nu}{sub {tau}} with a longer lifetime, the Majoron luminosity can be large enough to destroy or significantly shorten the duration of the neutrino pulse. We then find the range of parameters, e.g., the {nu}{sub {tau}} mass {ital m} and the ({ital B}{minus}{ital L})-breaking scale {ital v}, that is excluded by giving such a large Majoron luminosity. Our results imply that, for {ital v} between 1 GeV and 1 TeV, a wide range of {ital m} allowed by terrestrial experiments can be excluded in view of the observed {nu}{sub {ital e}} pulse from SN 1987A.

• DOE Contract Number: AC02-76ER03066
• OSTI ID: 6643937
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 42:2; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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