Flavor Changing Radiative Decay of Thf T Quark

Diaz-Cruz, J.L.; Martinez, R.; Perez, M.A.; Rosado, A.

doi:10.1103/PhysRevD.41.891

Flavor Changing Radiative Decay of Thf T Quark

Oct 27, 1989

16 pages

Published in:

Phys.Rev.D 41 (1990) 891-894

DOI:

10.1103/PhysRevD.41.891

Report number:

CINVESTAV-FIS-08-89

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Abstract: (APS)

We study the loop-induced flavor-changing decay t→c+γ in a nonlinear Rξ gauge for the standard model with three and four generations and in models with two Higgs doublets. We find that this decay could be relevant only in a scenario with two Higgs doublets and the mass of the fourth-generation b′ quark larger than mt. Under these conditions, the flavor-changing electromagnetic decays Tq*→Dqγ(Tq→Dq*γ) may surpass the standard electromagnetic transition Tq*→Tqγ.

top
top: radiative decay
radiative decay: quark
top: branching ratio
decay: flavor changing
flavor changing: decay
Feynman graph: higher-order
Higgs particle: multiplet
multiplet: Higgs particle
doublet: 2

References(25)

Figures(0)

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