Astrophysical bound on the majoron-Higgs-boson coupling

Details Astrophysical bound on the majoron-Higgs-boson coupling Astrophysical bound on the majoron-Higgs-boson coupling

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..220..597b&link_type=abstract

Physics Letters B, Volume 220, Issue 4, p. 597-601.

Physics

7

Scientific paper

We show that the coupling of the ``standard'' Higgs boson to majorons, that could lead to a very fast decay of the neutral Higgs scalar to invisible modes, can be bounded using astrophysical arguments. We discuss the relevance of this bound for low-energy phenomenology related to majoron production. The bound so obtained may also jeopardize the stability of the VEV hierarchy in the doublet and triplet majoron models if the mass of the top quark is less than the W mass. A similar analysis may be applied to other models which exhibit Goldstone-or pseudo-Goldstone-bosons in the spectrum.
Also at Departament de Fisica Teórica, and IFIC, Universitat de València-CSIC, E-46100 Burjassot (Valencia), Spain.

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