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arXiv · 1006.2510

Forward-backward asymmetry and differential cross section of top quark in flavor violating $Z'$ model at $\mathscr{O}(α_s^2 α_X)$

Bo Xiao·You-kai Wang·Shou-hua Zhu
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Abstract

In this paper, forward-backward asymmetry and differential cross section of top quark in flavor violating $Z'$ model up to $\mathscr{O}(α_s^2 α_X)$ at Tevatron are calculated. In order to account for the top observed large forward-backward asymmetry, the new coupling $g_X$ among $Z'$ and quarks will be not much less than strong coupling constant $g_s$. After including the new higher order correction, the differential cross section can fit the data better than those only including the leading contributions from $Z'$, while the forward-backward asymmetry is still in agreement with the measurement.

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Bo Xiao, You-kai Wang, Shou-hua Zhu. 2010-09-19. Forward-backward asymmetry and differential cross section of top quark in flavor violating $Z'$ model at $\mathscr{O}(α_s^2 α_X)$. https://doi.org/10.1103/physrevd.82.034026

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