The charged top-pion production associated with the bottom quark pair as a probe of the topcolor-assisted technicolor model at the LHC

TL;DR

This paper investigates the production of charged top-pions associated with bottom quark pairs at the LHC as a way to test the topcolor-assisted technicolor (TC2) model, highlighting its potential for discovery due to low Standard Model backgrounds.

Contribution

It analyzes the production rates of charged top-pions in the TC2 model at the LHC, demonstrating their detectability and potential as probes for new physics beyond the Standard Model.

Findings

Production rates can exceed 3σ sensitivity in large parameter regions.

Low Standard Model backgrounds enhance detection prospects.

Charged top-pions could be effectively probed at the LHC.

Abstract

The topcolor-assisted technicolor (TC2) model predicts the existence of the charged top-pions ($\pi_t^\pm$), whose large couplings with the third generation fermions will induce the charged top-pion production associated with the bottom and anti-bottom quark pair at the CERN Large Hadron Collider (LHC) through the parton processes $c\bar b \to \pi_t^+ b \bar b$ and $u\bar d(c\bar s) \to \pi_t^+ b \bar b$. In this paper we examine these productions and find that, due to the small Standard Model backgrounds, their production rates can exceed the $3\sigma$ sensitivity of the LHC in a large part of parameter space, so these processes may serve as a good probe for the TC2 model.