Next-to-leading order QCD effect of \(W'\) on top quark Forward-Backward Asymmetry

We present the calculations of the complete next-to-leading order (NLO) QCD corrections to the total cross section, invariant mass distribution and the forward-backward asymmetry (\(\rm A_{FB}\)) of top quark pair production mediated by \(W'\) boson. Our results show that in the best fit point...

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Bibliographic Details
Published in:arXiv.org 2011-10
Main Authors: Yan, Kai, Wang, Jian, Ding Yu Shao, Chong Sheng Li
Format: Article
Language:English
Subjects:
Asymmetry
Cross-sections
Invariants
Luminosity
Mass distribution
Pair production
Quantum chromodynamics
Quarks
Online Access:Get full text
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Summary:We present the calculations of the complete next-to-leading order (NLO) QCD corrections to the total cross section, invariant mass distribution and the forward-backward asymmetry (\(\rm A_{FB}\)) of top quark pair production mediated by \(W'\) boson. Our results show that in the best fit point in the parameter space allowed by data at the Tevatron, the NLO corrections change the new physics contributions to the total cross section slightly, but increase the \(\rm A_{FB}\) in the large invariant mass region by about 9%. Moreover, we evaluate the total cross section and charge asymmetry (\(\rm{A}_{\rm{C}}\)) of top pair production at the LHC, and find that both total cross section and \(A_{\rm C}\) can be used to distinguish NP from SM with the integrated luminosity increasing.
ISSN:2331-8422
DOI:10.48550/arxiv.1110.6684