https://doi.org/10.1140/epjc/s10052-012-1918-0
Regular Article - Theoretical Physics
Single slepton production associated with a top quark at LHC in NLO QCD
1
Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, Anhui, 230026, P.R. China
2
Department of Physics, Chongqing University, Chongqing, 401331, P.R. China
* e-mail: guolei@mail.ustc.edu.cn
Received:
6
November
2011
Revised:
1
February
2012
Published online:
13
March
2012
Single slepton production in association with a top quark at the CERN Large Hadron Collider (LHC) is one of the important processes in probing the R-parity violation couplings. We calculate the QCD next-to-leading order (NLO) corrections to the 
process at the LHC and discuss the impacts of the QCD corrections on kinematic distributions. We investigate the dependence of the leading order (LO) and the NLO QCD corrected integrated cross section on the factorization/renormalization energy scale, slepton, stop-quark and gluino masses. We find that the uncertainty of the LO cross section due to the energy scale is obviously improved by the NLO QCD corrections, and the exclusive jet event selection scheme keeps the convergence of the perturbative series better than the inclusive scheme. The results show that the polarization asymmetry of the top-quark will be reduced by the NLO QCD corrections, and the QCD corrections generally increase with the increment of the 
or 
mass value.
© Springer-Verlag / Società Italiana di Fisica, 2012
