Study of the forward-backward asymmetry of top quark production in a warped extra dimension model with an extension of the strong interaction
Li C(李承); 吕才典;Li, C; Lu, CD; Gao, XD
刊名PHYSICAL REVIEW D
2013
卷号88期号:5页码:56019
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.88.056019
英文摘要The large forward-backward asymmetry of top quark pair production measured by hadron colliders sheds light on new physics signals beyond the Standard Model. In the warped extra dimension model with an additional SU(3) group in the strong sector, we compare the cross section and forward-backward asymmetry of top quark pair production with recent data obtained by CDF and D0. Our numerical analysis shows that the parameter c(q) >= 0.5, c(t) similar to -0.6, tan phi >= 20, and the first excitation of an axial gluon with a mass of about 5-6 TeV can accommodate this large anomaly without violating other experimental constraints. We show that a large ratio of strong couplings g(D)/g(S) sets a strong limit on the parameter space of this model.
收录类别SCI
WOS记录号WOS:000324691000011
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224567
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Li C,吕才典;Li, C,Lu, CD,et al. Study of the forward-backward asymmetry of top quark production in a warped extra dimension model with an extension of the strong interaction[J]. PHYSICAL REVIEW D,2013,88(5):56019.
APA 李承,吕才典;Li, C,Lu, CD,&Gao, XD.(2013).Study of the forward-backward asymmetry of top quark production in a warped extra dimension model with an extension of the strong interaction.PHYSICAL REVIEW D,88(5),56019.
MLA 李承,et al."Study of the forward-backward asymmetry of top quark production in a warped extra dimension model with an extension of the strong interaction".PHYSICAL REVIEW D 88.5(2013):56019.
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