The $\gamma b\overline{b}$ production via $\gamma^{*}\gamma^{*}$ collisions at the ILC and LHC

TL;DR

This paper studies the production of bottom quark pairs associated with photons via gamma-gamma collisions at the ILC and LHC, considering Higgs-radion mixing and anomalous couplings, revealing cross-section dependencies on model parameters.

Contribution

It introduces a detailed analysis of gamma-bb production incorporating Higgs-radion mixing and anomalous couplings at collider energies, highlighting parameter effects on cross-sections.

Findings

Cross-section at LHC exceeds that at ILC.

Maximum cross-section occurs at radion and Higgs masses of 125 GeV.

Cross-section strongly depends on radion VEV and anomalous coupling parameters.

Abstract

Taking into account of the mixing of Higgs-radion in the Randall-Sundrum model and the vector anomalous couplings, we investigate the production of $b\overline{b}$ associated with the photon through $\gamma^{*}\gamma^{*}$ collisions at the International Linear Collider (ILC) and Large Hadron Collider (LHC). The total cross-section depends strongly on the vacuum expectation value (VEV) of the radion field $\Lambda_{\phi}$, the radion mass $m_{\phi}$, the parameters of anomalous couplings. The result shows that the total cross-section in $\gamma b\overline{b}$ production at the LHC is much larger than that at the ILC. The production cross-section gives the largest value at the dominated state, $m_{\phi} = m_{h} = 125$ GeV.