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Title: Strongly coupled charged scalar in B and T decays

Abstract

Limits on charged-scalar Yukawa couplings from tau and B decays are discussed. They (and other existing limits) are consistent with ''strong'' couplings (approx. =1 for the third generation) even if the lightest scalar mass is in the range 20approx. ..tau..nu..X) and (for M/sub phi/>m/sub t/)B(T..-->..tau..nu..X) may be then as large as 30% and 70%, respectively. Both for M/sub phi/m/sub t/ the potentially possible top-quark signature in pp-bar collisions is (tau+2 jets) final state. The upper limit for tau..--> nu..eta..pi.. is approx. =0.003%.

Authors:
;
Publication Date:
Research Org.:
Institute for Theoretical Physics, Warsaw University,
OSTI Identifier:
5545063
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Lett.; (United States)
Additional Journal Information:
Journal Volume: 60:3
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B MESONS; WEAK PARTICLE DECAY; RHO3-2250 MESONS; HIGGS BOSONS; NEUTRINOS; TAU PARTICLES; WEAK INTERACTIONS; BASIC INTERACTIONS; BOSONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HEAVY LEPTONS; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MESONS; PARTICLE DECAY; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; TENSOR MESONS; 645203* - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties

Citation Formats

Krawczyk, P, and Pokorski, S. Strongly coupled charged scalar in B and T decays. United States: N. p., 1988. Web. doi:10.1103/PhysRevLett.60.182.
Krawczyk, P, & Pokorski, S. Strongly coupled charged scalar in B and T decays. United States. doi:10.1103/PhysRevLett.60.182.
Krawczyk, P, and Pokorski, S. Mon . "Strongly coupled charged scalar in B and T decays". United States. doi:10.1103/PhysRevLett.60.182.
@article{osti_5545063,
title = {Strongly coupled charged scalar in B and T decays},
author = {Krawczyk, P and Pokorski, S},
abstractNote = {Limits on charged-scalar Yukawa couplings from tau and B decays are discussed. They (and other existing limits) are consistent with ''strong'' couplings (approx. =1 for the third generation) even if the lightest scalar mass is in the range 20approx. ..tau..nu..X) and (for M/sub phi/>m/sub t/)B(T..-->..tau..nu..X) may be then as large as 30% and 70%, respectively. Both for M/sub phi/m/sub t/ the potentially possible top-quark signature in pp-bar collisions is (tau+2 jets) final state. The upper limit for tau..--> nu..eta..pi.. is approx. =0.003%.},
doi = {10.1103/PhysRevLett.60.182},
journal = {Phys. Rev. Lett.; (United States)},
number = ,
volume = 60:3,
place = {United States},
year = {1988},
month = {1}
}