Supersymmetric electroweak baryogenesis, non-equilibrium field theory and quantum Boltzmann equations
نویسندگان
چکیده
منابع مشابه
Supersymmetric Electroweak Baryogenesis, Nonequilibrium Field Theory and Quantum Boltzmann Equations
The closed time-path (CTP) formalism is a powerful Green’s function formulation to describe nonequilibrium phenomena in field theory and it leads to a complete nonequilibrium quantum kinetic theory. In this paper we make use of the CTP formalism to write down a set of quantum Boltzmann equations describing the local number density asymmetries of the particles involved in supersymmetric electrow...
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We review and extend to include the gauge fields our derivation of the semiclassical limit of the collisionless quantum transport equations for the fermions in presence of a CP-violating bubble wall at a first order electroweak phase transition. We show how the (gradient correction modified) Lorenzforce appears both in the Schwinger-Keldysh approach and in the semiclassical WKB-treatment. In th...
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We calculate the baryon asymmetry generated at the electroweak phase transition in the minimal supersymmetric standard model, using a new method to compute the CP-violating asymmetry in the Higgsino flux reflected into the unbroken phase. The method is based on a Higgs insertion expansion. We find that the CP asymmetry at leading order is proportional to the change in tan β in the bubble wall, ...
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We reexamine the generation of the baryon asymmetry in the minimal supersymmetric standard model (MSSM) during the electroweak phase transition. We find that the dominant source for baryogenesis arises from the chargino sector. The CP-violation comes from the complex phase in the µ parameter, which provides CP-odd contributions to the particle dispersion relations. This leads to different accel...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1998
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(98)00159-x