New Physics effects on decay $B_s \to \gamma\gamma$ in Technicolor Model

TL;DR

This paper investigates how charged Pseudo-Goldstone bosons in a Technicolor model significantly alter the predicted branching ratio of the decay $B_s o \gamma\gamma$, offering a potential test for new physics beyond the Standard Model.

Contribution

It calculates the impact of Pseudo-Goldstone bosons in a Technicolor model on the $B_s o \gamma\gamma$ decay rate, showing substantial deviations from the Standard Model predictions.

Findings

Branching ratio can be enhanced 2-3 times over SM predictions.

Decay $B_s o \gamma\gamma$ can serve as a probe for Technicolor new physics.

Significant contributions from charged PGBs P^\pm and P^{\pm}_8.

Abstract

In this paper we calculate the contributions to the branching ratio of $B_s \to \gamma\gamma$ from the charged Pseudo-Goldstone bosons appeared in one generation Technicolor model. We find that the theoretical values of the branching ratio, $BR(B_s\to\gamma\gamma)$, including the contributions of PGBs, $P^\pm$ and $P^{\pm}_8$, are much different from the $SM$ prediction. The new physics effects can be enhance 2-3 levels to $SM$ result. It is shown that the decay $B_s\to \gamma\gamma$ can give the test the new physics signals from the technicolor model.