High pT Production of b\bar{b} at LHC and New SU(3) Bosons

TL;DR

This paper explores how high transverse momentum bar{b} production measurements at the LHC can be used to detect or constrain new SU(3) bosons, especially through analyzing the pT distribution tail and interference effects.

Contribution

It introduces a kinematic technique to suppress background, enhancing sensitivity to new SU(3) bosons in high pT bar{b} production at the LHC.

Findings

Potential to discover new SU(3) bosons via pT tail effects.

Interference effects can significantly impact the bar{b} distribution.

Extended the analysis to models with (8,2)_{1/2} scalars.

Abstract

We discuss the potential of measurements of \sigma(p p -> b\bar{b}) to constrain new bosonic degrees of freedom at the LHC when pT > \sqrt{s}/11 TeV for a pseudorapidity cut |\eta| < 2.4. By suppressing the NLO QCD production of b\bar{b} pairs through simple kinematic constraints we show how to more efficiently exploit CMS's reach out to 1.5 TeV in pT for B mesons in searches for new physics. Using this technique we investigate the potential for discovery of new massive spin one and spin zero SU_c(3) octet bosons by analyzing their effect on the d\sigma(p p -> b\bar{b})/d pT^2 distribution. In some cases, the tree level contributions are small and the largest effect of new physics on the pT tail of the distribution is due to one-loop resonant s-channel production or interference effects with the LO standard model production mechanisms q\bar{q}, g g -> b\bar{b}. We explore this possibility in some detail when the standard model is extended with an (8,2)_{1/2} scalar motivated by Minimal Flavor Violation.