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题名: Dark matter constraints on gaugino/Higgsino masses in split supersymmetry and their implications at colliders
作者: Wang, F. ;  Wang, W. ;  Yang, J. M.
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2006
卷号: 46, 期号:2, 页码:521-526
关键词: HADRON COLLIDERS ;  STANDARD MODEL ;  MU-PROBLEM ;  D-TERMS ;  PHYSICS
学科分类: Physics
通讯作者: Wang, F , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China
英文摘要: In split supersymmetry, gauginos and Higgsinos are the only supersymmetric particles that are potentially accessible at soon-to-be-completed colliders. While direct experimental research, such as the LEP and Tevatron experiments, have given robust lower bounds on the masses of these particles, cosmic dark matter can give some upper bounds and thus have important implications for research at future colliders. In this work we scrutinize such dark matter constraints and show the allowed mass range for charginos and neutralinos (the mass eigenstates of gauginos and Higgsinos). We find that the lightest chargino must be lighter than about 1 TeV under the popular assumption M-1 = M-2/2 and about 2 or 3 TeV in other cases. The corresponding production rates of the lightest chargino at the CERN large hadron collider (LHC) and the International Linear Collider (ILC) are also given. While in some parts of the allowed region the chargino pair production rate can be larger than 1 pb at the LHC and 100 fb at the ILC, other parts of the region correspond to very small production rates, and thus there is no guarantee of finding the charginos of split supersymmetry at future colliders.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000241559500022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5995
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang, F.,Wang, W.,Yang, J. M.. Dark matter constraints on gaugino/Higgsino masses in split supersymmetry and their implications at colliders[J]. EUROPEAN PHYSICAL JOURNAL C,2006,46(2):521-526.
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