Strong and Electro-Weak Supersymmetric Corrections to Single Top Processes at the Large Hadron Collider

TL;DR

This paper calculates supersymmetric one-loop corrections to single top production processes at the LHC, showing they can significantly affect observables and depend on MSSM parameters, thus aiding in SUSY searches.

Contribution

It provides the first detailed analysis of SUSY electroweak and QCD corrections to single top processes within the MSSM at the LHC.

Findings

Corrections can be large and observable at planned LHC energies.

Effects are sensitive to MSSM parameters.

Potential to improve SUSY parameter constraints.

Abstract

We present the one-loop corrections originating from Quantum Chromo-Dynamics (QCD) and Electro-Weak (EW) interactions of Supersymmetric (SUSY) origin within the Minimal Supersymmetric Standard Model (MSSM) to the single-top processes bq -> tq' and qbar q' -> tbar b. We illustrate their impact onto top quark observables accessible at the Large Hadron Collider (LHC) in the 't+jet' final state, such as total cross section, several differential distributions and left-right plus forward-backward asymmetries. We find that in many instances these effects can be observable for planned LHC energies and luminosities, quite large as well as rather sensitive to several MSSM parameters.