Charged scalar particles and (tau) leptonic decay

Details Charged scalar particles and (tau) leptonic decay Charged scalar particles and (tau) leptonic decay

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993cspt.rept.....t&link_type=abstract

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Astronomy and Astrophysics

Astrophysics

Charged Particles, Decay, Leptons, Neutrinos, Astrophysics, Cosmology, Particle Theory

Scientific paper

Charged scalar particles introduced in some extensions of the standard model can induce (tau) leptonic at tree level. We find that with some charged SU(2)-singlet scalar particles, like ones introduced in Zee-type model, (tau) leptonic decay width is always smaller than what is predicted by the standard model, therefore they may offer a natural solution to (tau) decay puzzle. To be more specific, we examine some Zee-type models in detail to see if at the same time they are acceptable in particle physics, cosmology and astrophysics. It is shown that (tau) decay data do put some constraints on these models.

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