Top quark flavor-changing neutral-current decays and productions at LHC in the littlest Higgs model with T parity
文献类型：期刊论文
| 作者 | 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 |
| 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 |
| ISSN号 | 1550-7998 |
| 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000268618600066 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5284]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Han, XF , Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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