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arXiv · 1303.5646

Study the Forward-Backward Asymmetry of the Top Quark Production in the Randall-Sundrum Model with an Extension of Strong Interaction

Cheng Li·Cai-Dian Lu·Xiang-Dong Gao
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Abstract

The large forward-backward asymmetry of the top quark pair production measured by the hadron colliders shed light on new physics signals beyond the Standard Model. In the Randall-Sundrum model with an additional SU(3) group in the strong sector, we compare the total cross section and forward-backward asymmetry of the top quark pair production with the newest data obtained by the CDF and the D0 collaborations. Our numerical analysis shows that the parameter $c_q \gtrsim 0.5$, $c_t \sim -0.6\sim-0.8$, $\tanϕ\gtrsim 20$ or $\tanϕ\leq 1/20$ and the first excitation of axial gluon with a mass about $5 \thicksim 6 \mathrm{TeV}$ can accommodate this large anomaly without violating other experimental constraints.

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Cheng Li, Cai-Dian Lu, Xiang-Dong Gao. 2013-09-10. Study the Forward-Backward Asymmetry of the Top Quark Production in the Randall-Sundrum Model with an Extension of Strong Interaction. https://doi.org/10.1103/physrevd.88.056019

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