Single Production of Fourth Family Quarks at the LHC

TL;DR

This paper investigates the potential for discovering fourth family quarks at the LHC through single production processes, calculating decay properties and cross sections to assess detectability.

Contribution

It provides the first detailed analysis of single production of fourth family quarks at the LHC, including decay widths, branching ratios, and discovery potential based on CKM matrix elements.

Findings

LHC can detect t' and b' quarks if CKM elements are >= 0.01.

Decay widths and branching ratios are computed for 300-800 GeV masses.

Signal and background cross sections are evaluated in a Monte Carlo framework.

Abstract

We study the single production of the fourth family quarks through the process pp--> Q'jX at the Large Hadron Collider (LHC). We have calculated the decay widths and branching ratios of the fourth family quarks (b' and t') in the mass range 300-800 GeV. The cross sections of signal and background processes have been calculated in a Monte Carlo framework. It is shown that the LHC can discover single t' and b' quarks if the CKM matrix elements |V_{t'q}|,|V_{qb'}|>=0.01.