Production and Decays of $W_R$ bosons at the LHC

TL;DR

This paper investigates the production and decay of hypothetical $W_R$ bosons in left-right symmetric models at the LHC, analyzing cross sections, branching ratios, and potential signals amid backgrounds, considering constraints from low energy data.

Contribution

It provides a detailed analysis of $W_R$ boson signals in an asymmetric LRSM, including cross sections, decay modes, and LHC detection prospects, highlighting differences from the manifest LRSM.

Findings

LHC could observe significant signals for $W_R$ bosons.

Cross sections and branching ratios are computed considering low energy constraints.

Differences between asymmetric and manifest LRSM are discussed.

Abstract

With the advent of the LHC, it is important to devise clear tests for Physics Beyond the Standard Model. Such physics could manifest itself in the form of new charged bosons, whose presence is most naturally occurring in left-right symmetric models (LRSM). We analyze the single $W_R$ boson production in an asymmetric left-right model, where the left and right quark mixing matrices are not constrained to be equal. We investigate the cross sections as well as branching ratios of $W_R$ bosons at the LHC, including constraints from low energy phenomenology. We then look for most likely signals in $pp \to W_R\ t \to t ~(dijet)$ production. Including the background, we find that LHC could show significant signals for the new charged bosons. We compare our results throughout with the manifest left-right symmetric model and comment on similarities and differences.