Pair production of the lightest chargino via gluon-gluon collisions

被引：12
|
作者：
Ma, WG [1 ]
Du, F
Zhou, ML
Jiang, Y
Han, L
Zhou, H
机构：
[1] CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230027, Anhui, Peoples R China
[3] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
来源：
PHYSICAL REVIEW D | 1999年 / 60卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.60.115009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The production of the lightest chargino pair from gluon-gluon fusion is studied in the minimal supersymmetric standard model (MSSM) at proton-proton colliders. We find that with the chosen parameters, the production rate of the subprocess can be over 2.7 fb when the chargino is Higgsino-like, and the corresponding total cross section in proton-proton colliders can reach 56 fb at the CERN Large Hadron Colider (LHC) in the CP-conserving MSSM. It shows that this loop mediated subprocess can be competitive with the standard Drell-Yan subprocess in proton-proton colliders, especially at the LHC. Furthermore, our calculation shows it would be possible to extract information about some CP-violating phase parameters if we collected enough chargino pair events. [S0556-2821(99)08519-7].
引用
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页数：18
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