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تسجيل مستخدم جديدMuon g-2 and CP violation in MSSM
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Chengcheng Han
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We study the constraints of the CP violation in the muon $g-2$ preferred region of the minimal supersymmetric standard model assuming a universal slepton masses within first two generations. We present two particular scenarios where the $g-2$ anomaly is predicted within 2 $sigma$ level mainly through the chargino loop or the bino loop. We found that for both cases the electron EDM experiment already highly constrained the CP phase of the parameters: either the Arg[$mu M_1]$ or Arg[$mu M_2]$ should be smaller than $mathcal O$(2-3)$times10^{-5}$. If the muon $g-2$ anomaly is explained by the MSSM, a particular SUSY breaking mechanism is needed to guarantee the small CP phase of SUSY parameters. Otherwise, a tuning of $mathcal O(10^{-5})$ is needed to cancel the phase in a general CP violated SUSY model.
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