New Supernova Constraints on Sterile-Neutrino Production

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3066· OSTI ID:388945

Kolb, E W; Mohapatra, R N; Teplitz, V L ^[1]

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1. NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)

We consider the possibility that a light, sterile-neutrino species {nu}{sub {ital S}} can be produced by {nu}{sub {ital e}} scattering during the cooling of a proto-neutron star. If we parametrize the sterile-neutrino production cross section by a parameter {ital A} as {sigma}({nu}{sub {ital eX}}{r_arrow}{nu}{sub {ital SX}})={ital A}{sigma}({nu}{sub {ital eX}}{r_arrow}{nu}{sub {ital eX}}), where {ital X} is an electron, neutron, or proton, we show that {ital A} is constrained by limits to the conversion of {nu}{sub {ital e}} to {nu}{sub {ital S}} in the region between the sterile-neutrino trapping region and the electron-neutrino trapping region. This consideration excludes values of {ital A} in the range 10{sup {minus}4}{approx_lt}{ital A}{approx_lt}10{sup {minus}1}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 388945
• Journal Information: Physical Review Letters, Vol. 77, Issue 15; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRINOS
PARTICLE PRODUCTION
LIMITING VALUES
NEUTRINO-ELECTRON INTERACTIONS
NEUTRINO-NEUTRON INTERACTIONS
NEUTRINO-PROTON INTERACTIONS
SUPERNOVAE
CROSS SECTIONS
NEUTRON STARS
COOLING
TRAPPING