XQCAT: eXtra Quark Combined Analysis Tool

TL;DR

XQCAT is a computational tool designed to evaluate exclusion confidence levels for theories involving heavy extra quarks, utilizing efficiency data from CMS experiments to analyze various decay scenarios.

Contribution

It introduces a new software that combines experimental efficiencies with user-defined parameters to assess the viability of models with extra quarks.

Findings

Efficiently computes exclusion confidence levels for extra quark models.

Incorporates efficiencies from seven CMS search results.

Allows statistical combination of multiple analyses.

Abstract

XQCAT (eXtra Quark Combined Analysis Tool) is a tool aimed at determining exclusion confidence levels for scenarios of new physics characterised by the presence of one or multiple heavy extra quarks which interact through Yukawa couplings with any of the Standard Model quarks. The code uses a database of efficiencies for pre-simulated processes of QCD-induced pair production of extra quarks and their subsequent on-shell decays. In the version 1.2 of XQCAT the efficiencies have been computed for a set of seven publicly available search results by the CMS experiment. The input for the code is a text file in which masses, branching ratios and dominant chirality of the couplings of the new quarks are provided. The output of the code is the exclusion confidence levels of the test point for each implemented experimental analysis considered individually and, when possible, in statistical combination.