Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-07-20
Phys.Rev.D84:054016, 2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages, 10 figures; final version in PRD
Scientific paper
We present the complete calculations of the forward-backward asymmetry ($A_{\rm FB}$) and the total cross section of top quark pair production induced by dimension-six four quark operators at the Tevatron up to $\mathcal{O}(\as^2/\Lambda^2)$. Our results show that next-to-leading order (NLO) QCD corrections can change $A_{\rm FB}$ and the total cross section by about 10%. Moreover, NLO QCD corrections reduce the dependence of $A_{\rm FB}$ and total cross section on the renormalization and factorization scales significantly. We also evaluate the total cross section and the charge asymmetry ($A_{\rm C}$) induced by these operators at the Large Hadron Collider (LHC) up to $\mathcal{O}(\as^2/\Lambda^2)$, for the parameter space allowed by the Tevatron data. We find that the value of $A_{\rm C}$ induced by these operators is much larger than SM prediction, and LHC has potential to discover these NP effects when the measurement precision increases.
Gao Jun
Li Chong Sheng
Shao Ding Yu
Wang Jian
Zhang Hao
No associations
LandOfFree
Model independent analysis of top quark forward-backward asymmetry at the Tevatron up to $\mathcal{O}(\as^2/Λ^2)$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Model independent analysis of top quark forward-backward asymmetry at the Tevatron up to $\mathcal{O}(\as^2/Λ^2)$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Model independent analysis of top quark forward-backward asymmetry at the Tevatron up to $\mathcal{O}(\as^2/Λ^2)$ will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-35921