Forward-backward asymmetry and differential cross section of top quark in flavor violating $Z'$ model at $mathscr{O}α s^2 α X$ - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: In this paper, forward-backward asymmetry and differential cross section oftop quark in flavor violating $Z-$ model up to $\mathscr{O}\alpha s^2\alpha X$ at Tevatron are calculated. In order to account for the top observedlarge forward-backward asymmetry, the new coupling $g X$ among $Z-$ and quarkswill be not much less than strong coupling constant $g s$. After including thenew higher order correction, the differential cross section can fit the databetter than those only including the leading contributions from $Z-$, while theforward-backward asymmetry is still in agreement with the measurement.



Autor: Bo Xiao, You-kai Wang, Shou-hua Zhu

Fuente: https://arxiv.org/







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