t-c gamma and t-cg in warped extra dimensions

TL;DR

This paper calculates rare top quark decays t-cgamma and t-cg within a warped extra dimension model, predicting branching ratios that could be detectable soon, thus providing potential signals of new physics beyond the Standard Model.

Contribution

It introduces detailed calculations of rare top decays in a warped extra dimension framework with custodial symmetry, highlighting potential observable effects.

Findings

Branching ratio of t-cgamma exceeds 10^-6

Branching ratio of t-cg exceeds 10^-5

Predicted decay rates are within near-future detection capabilities

Abstract

In this work, we calculate the top quark rare decays t-cgamma and t-cg in the framework where the standard model is embedded in a warped extra dimension with the custodial symmetry SU(3)c*SU(2)L*SU(2)R*U(1)x*PLR. Adopting reasonable assumptions on the parameter space,we numerically find the branching ratios of t-cgamma exceeding 10^-6 and that of t-cg exceeding 10^-5 respectively, which can be detected in near future.