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Next-to-leading order QCD corrections to $tar tgamma$ production at the 7 TeV LHC | | Duan Peng-Fei
; Zhang Ren-You
; Ma Wen-Gan
; Han Liang
; Guo Lei
; Wang Shao-Ming
; | | Date: |
11 Oct 2011 | | Abstract: | We present the theoretical predictions including the complete next-to-leading
order (NLO) QCD corrections to the top-quark pair production in association
with a photon at the LHC with center-of-mass system energy of $7 {
m TeV}$.
The uncertainties of the leading order (LO) and NLO QCD corrected cross
sections due to the renormalization/factorization scale, and the distributions
of the transverse momenta of final top-quark and photon are studied. Moreover,
we provide the numerical results of the LO, NLO QCD corrected cross sections
and the corresponding $K$-factors with different photon transverse momentum
cuts. We also discuss the impact of QCD corrections to the ppttga in case of
there existing the exotic top-quark with an electric charge of $-4e/3$ at the
$7 {
m TeV}$ LHC. | | Source: | arXiv, 1110.2315 | | Services: | Forum | Review | PDF | Favorites | |
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