5 . 3 Supersymmetry 5 . 3 . 1 CP Asymmetries in Supersymmetry
نویسنده
چکیده
The Minimal Supersymmetric Standard Model (MSSM) provides an abundant opportunity for discovering New Physics in CP -violating and/or flavor-changing b quark processes. In fact, the most general version of the MSSM provides an over-abundance, with 12 masses, 30 mixing angles and 27 phases in the (s)quark sector, beyond those of the Standard Model. Of these, the LHC has only limited ability to go beyond measurements of the masses, leaving 57 parameters unconstrained, even after finding and studying SUSY at hadron colliders.
منابع مشابه
0 v 1 5 M ar 1 99 9 DESY 99 - 022 MZ - TH / 99 - 03 Supersymmetry and CP Violating Asymmetries in B d , s Decays
We study possible effects of supersymmetry (SUSY) in CP asymmetries in nonleptonic Bd,s decays in a variety of SUSY flavour models considered in literature. We use both mass insertion and vertex mixing methods to calculate squark-gluino box diagrams contribution to Bd,s-B̄d,s mixings. With the squark mixing parameter η = 0.22, and with large new CP phases, it turns out that the CP asymmetries to...
متن کاملOn Gaugino Contributions to Soft Leptogenesis
We study the contributions to CP violation in right-handed sneutrino decays induced by soft supersymmetry-breaking gaugino masses including flavour effects and paying special attention to the role of thermal corrections. Using a field-theoretical as well as a quantum mechanical approach we compute the CP asymmetries and we conclude that for all the soft-supersymmetry breaking sources of CP viol...
متن کامل0 v 2 2 6 A pr 1 99 9 DESY 99 - 022 MZ - TH / 99 - 03 Supersymmetry and CP Violating Asymmetries in B d , s Decays
We study possible effects of supersymmetry (SUSY) in CP asymmetries in nonleptonic Bd,s decays in a variety of SUSY flavour models considered in literature. We use both mass insertion and vertex mixing methods to calculate squark-gluino box diagrams contribution to Bd,s-B̄d,s mixings. With the squark mixing parameter η = 0.22, and with large new CP phases, it turns out that the CP asymmetries to...
متن کاملFlavour-Conserving CP Phases in Supersymmetry and Implications for Exclusive B Decays
We study rare exclusive B decays based on the quark-level transition b → s(d) l+l−, where l = e or μ, in the context of supersymmetric theories with minimal flavour violation. We present analytic expressions for various mixing matrices in the presence of new CP-violating phases, and examine their impact on observables involving B and B̄ decays. An estimate is obtained for CPviolating asymmetries...
متن کاملCP violation as a probe of flavor origin in Supersymmetry
We address the question of the relation between supersymmetry breaking and the origin of flavor in the context of CP violating phenomena. We prove that, in the absence of the Cabibbo–Kobayashi–Maskawa phase, a general Minimal Supersymmetric Standard Model with all possible phases in the soft–breaking terms, but no new flavor structure beyond the usual Yukawa matrices, can never give a sizeable ...
متن کامل