Fermion scattering off aCP-violating electroweak bubble wall
نویسندگان
چکیده
منابع مشابه
Fermion scattering off a CP-violating electroweak bubble wall.
A general prescription to solve the Dirac equation in the presence of CPviolating electroweak bubble wall is presented. The profile of the bubble wall is not specified except that the wall height is m0 and zero deep in the brokenand the symmetric-phase regions, respectively, where m0 is a fermion mass given by the Higgs-vacuum-expectation value and the Yukawa coupling. The CP-violating effects ...
متن کاملCharge asymmetry from CP-violating fermion scattering off bubble walls during the electroweak phase transition
We compute the net electric current generated during a first order electroweak phase transition when fermions transit from the false to the true vacuum. This current is generated by the CPviolating fermion interaction with the Higgs during the phase transition and is quantified in terms of a CP-violating phase in the bubble wall separating the symmetric from the symmetry-broken phases. We comme...
متن کاملFermion Scattering off a CP-violating Bubble Wall in the Background of a Uniform Magnetic Field
In the scenario of the electroweak baryogenesis we consider the dynamics of fermions with a spatially varying mass in presence of a CP-violating bubble wall and a uniform magnetic field perpendicular to the wall. The relevant quantity for baryogenesis, RR→L − RL→R , is studied (RR→L and RL→R being the reflection coefficients for right-handed and left-handed chiral fermions, respectively). PACS ...
متن کاملElectroweak Bubble Wall Friction: Analytic Results
We present an entirely analytic, leading log order determination of the friction an electroweak bubble wall feels during a first order electroweak phase transition. The friction is dominated by W bosons, and gives a wall velocity parametrically ∼ αw, and numerically small, ∼ .01 −− 0.1 depending on the Higgs mass.
متن کاملInfluence of the magnetic field on the fermion scattering off bubble and kink walls
We investigate the scattering of fermions off domain walls at the electroweak phase transition in presence of a magnetic field. We consider both the bubble wall and the kink domain wall. We derive and solve the Dirac equation for fermions with momentum perpendicular to the walls, and compute the transmission and reflection coefficients. In the case of kink domain wall, we briefly discuss the ze...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 1994
ISSN: 0556-2821
DOI: 10.1103/physrevd.50.1105