Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-07-15
Phys.Rev. D60 (1999) 115009
Physics
High Energy Physics
High Energy Physics - Phenomenology
39 pages, LaTex, 8 figures
Scientific paper
10.1103/PhysRevD.60.115009
The production of the lightest chargino pair from gluon-gluon fusion is studied in the minimal supersymmetric model(MSSM) at proton-proton colliders. We find that with the chosen parameters, the production rate of the subprocess can be over 2.7 femto barn when the chargino is higgsino-like, and the corresponding total cross section in proton-proton collider can reach 56 femto barn at the 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.
Fei Du
Hong Zhou
Liang Han
Mian-Lai Zhou
Wen-gan Ma
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