Bounds on light, weakly interacting particles from observational lifetimes of helium-burning stars

Details Bounds on light, weakly interacting particles from observational lifetimes of helium-burning stars Bounds on light, weakly interacting particles from observational lifetimes of helium-burning stars

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvd..37..549r&link_type=abstract

Physical Review D (Particles and Fields), Volume 37, Issue 2, 15 January 1988, pp.549-551

Physics

27

Supersymmetric Partners Of Known Particles, Giant And Subgiant Stars

Scientific paper

The lifetimes of low-mass population I helium-burning stars as derived from the number of ``clump'' giants in the open cluster M67 and in the old galactic disk population agree very well with calculations. This provides an observational basis for previous speculative bounds on axions, Majorons, supersymmetric particles, and exotic scalar and vector bosons. We find a slightly improved bound on the neutrino magnetic dipole moment of μν<3×10-11μB. The possibility of detecting axionlike particles in the laboratory is severely constrained.

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