Supernova Bounds on Supersymmetric $R$-parity Violating Interactions

Details Supernova Bounds on Supersymmetric $R$-parity Violating Interactions Supernova Bounds on Supersymmetric $R$-parity Violating Interactions

1996-06-26

arxiv.org/abs/hep-ph/9606445v1

Nucl.Phys.B482:481-494,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

latex file, 19 pages, including 5 figures

Scientific paper

10.1016/S0550-3213(96)00541-X

We re-examine resonant massless-neutrino conversions in a dense medium induced by flavour changing neutral current (FCNC) interactions. We show how the observed $\bar\nu_e$ energy spectra from SN1987a and the supernova $r$-process nucleosynthesis provide constraints on supersymmetric models with $R$ parity violation, which are much more stringent than those obtained from the laboratory. We also suggest that resonant massless-neutrino conversions may play a positive role in supernova shock reheating. Finally, we examine the constraints on explicit $R$-parity-violating FCNCs in the presence of non-zero neutrino masses in the eV range, as indicated by present hot dark matter observations.

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