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Han, Xiao-Fang; Wang, Lei; Yang, Jin Min; Han, XF , Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity
发表期刊PHYSICAL REVIEW D
关键词Minimal Supersymmetric Model Hadron Colliders Linear Colliders Standard Model Rare Decays 3rd-family Quarks Fcnc Processes Physics Susy Operators
摘要In the littlest Higgs model with T-parity (LHT) the newly introduced mirror quarks have flavor-changing couplings with the standard model (SM) quarks and may enhance the flavor-changing neutral-current (FCNC) top-quark interactions which are extremely suppressed in the SM. In this work we perform a comprehensive study for the contributions of these mirror fermions to various top-quark FCNC decays and productions at the LHC, which includes the decays t -> cV (V=g, gamma, Z), t -> cgg and the productions proceeding through the parton processes cg -> t, gg -> tc, cg -> tg, cg -> t gamma and cg -> tZ. We find that although these FCNC processes can be greatly enhanced by the LHT contributions, they are hardly accessible at the LHC. Therefore, the LHT model may not cause the FCNC problem in the top-quark sector if the top-quark property is proved to be SM-like at the LHC.
2009
ISSN1550-7998
卷号80期号:1页码:-
学科领域Physics
收录类别SCI
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5284
专题理论物理所科研产出_SCI论文
通讯作者Han, XF , Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
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Han, Xiao-Fang,Wang, Lei,Yang, Jin Min,et al. Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity[J]. PHYSICAL REVIEW D,2009,80(1):-.
APA Han, Xiao-Fang,Wang, Lei,Yang, Jin Min,&Han, XF , Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.(2009).Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity.PHYSICAL REVIEW D,80(1),-.
MLA Han, Xiao-Fang,et al."Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity".PHYSICAL REVIEW D 80.1(2009):-.
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