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题名: Higgs boson production in photon-photon collision at ILC: a comparative study in different little Higgs models
作者: Wang, Lei ;  Xu, Fuqiang ;  Yang, Jin Min
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2010
期号: 1, 页码:-
关键词: LINEAR COLLIDERS ;  T-PARITY ;  PHYSICS ;  DECAY
学科分类: Physics
通讯作者: Wang, L , Yantai Univ, Dept Phys, Yantai 264005, Peoples R China
部门归属: [Wang, L] Yantai Univ, Dept Phys, Yantai 264005, Peoples R China; [Xu, FQ] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan; [Yang, JM] Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We study the process gamma gamma -> h -> b (b) over bar at ILC as a probe of different little Higgs models, including the simplest little Higgs model (SLH), the littlest Higgs model (LH), and two types of littlest Higgs models with T-parity (LHT-I, LHT-II). Compared with the Standard Model (SM) prediction, the production rate is found to be sizably altered in these little Higgs models and, more interestingly, different models give different predictions. We find that the production rate can be possibly enhanced only in the LHT-II for some part of the parameter space, while in all other cases the rate is suppressed. The suppression can be 10% in the LH and as much as 60% in both the SLH and the LHT-I/LHT-II. The severe suppression in the SLH happens for a large tan beta and a small m(h), in which the new decay mode h -> eta eta (eta is a light pseudo-scalar) is dominant; while for the LHT-I/LHT-II the large suppression occurs when integral and m(h) are both small so that the new decay mode h -> A(H)A(H) is dominant. Therefore, the precision measurement of such a production process at the ILC will allow for a test of these models and even distinguish between different scenarios.
资助者: Foundation of Yantai University[WL09B31]; National Natural Science Foundation of China (NNSFC)[10821504, 10725526, 10635030]; Chinese Academy of Sciences[KJCX2.YW.W10]; LHC Physics Focus Group; National Center for Theoretical Sciences, Taiwan, Republic of China
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000274334800001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5194
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Wang, Lei,Xu, Fuqiang,Yang, Jin Min. Higgs boson production in photon-photon collision at ILC: a comparative study in different little Higgs models[J]. JOURNAL OF HIGH ENERGY PHYSICS,2010(1):-.
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