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题名: Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity
作者: Han, Xiao-Fang ;  Wang, Lei ;  Yang, Jin Min
刊名: PHYSICAL REVIEW D
出版日期: 2009
卷号: 80, 期号:1, 页码:-
关键词: MINIMAL SUPERSYMMETRIC MODEL ;  HADRON COLLIDERS ;  LINEAR COLLIDERS ;  STANDARD MODEL ;  RARE DECAYS ;  3RD-FAMILY QUARKS ;  FCNC PROCESSES ;  PHYSICS ;  SUSY ;  OPERATORS
学科分类: Physics
通讯作者: Han, XF , Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
部门归属: [Han, XF; Wang, L; Yang, JM] Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000268618600066
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5284
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Han, Xiao-Fang,Wang, Lei,Yang, Jin Min. 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):-.
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