Tests of bottom quark CSM properties

TL;DR

This paper investigates potential compositeness features of the bottom quark within the Composite Standard Model framework, analyzing various production processes and their differences under CSM conserving and violating scenarios.

Contribution

It extends previous compositeness tests from Higgs and top quarks to the bottom quark, exploring form factors, process differences, and effective mass implications.

Findings

Distinct signatures between CSM conserving and violating cases.

Potential evidence of an effective bottom quark mass.

Analysis of form factor effects in multiple production channels.

Abstract

We look for possible (partial) compositeness properties of the bottom quark according to the Composite Standard Model (CSM) concept in the same way this was previously done for Higgs boson and top quark. After looking at the direct form factor effects appearing in $e^+e^-\to b\bar b$ we analyze the more complex features of the $e^+e^-, gg, \gamma\gamma \to b\bar b H, b\bar b Z, t\bar b W^-$ processes. We emphasize typical differences appearing between CSM concerving and CSM violating cases. We also mention the possible appearence of an effective bottom mass.