17 research outputs found
Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields
We study the scattering of fermions off a finite width kink wall during the
electroweak phase transition in the presence of a background hypermagnetic
field. We derive and solve the Dirac equation for such fermions and compute the
reflection and transmission coefficients for the case when the fermions move
from the symmetric to the broken symmetry phase. We show that the chiral nature
of the fermion coupling with the background field in the symmetric phase
generates an axial asymmetry in the scattering processes. We discuss possible
implications of such axial charge segregation for baryon number generation.Comment: 9 pages, 3 Postscript figures, uses RevTeX4. Expanded discussion,
published versio
Axially asymmetric fermion scattering off electroweak phase transition bubble walls with hypermagnetic fields
We show that in the presence of large scale primordial hypermagnetic fields,
it is possible to generate an axial asymmetry for a first order electroweak
phase transition. This happens during the reflection and transmission of
fermions off the true vacuum bubbles, due to the chiral nature of the fermion
coupling with the background field in the symmetric phase. We derive and solve
the Dirac equation for such fermions and compute the reflection and
transmission coefficients for the case when these fermions move from the
symmetric to the symmetry broken phase. We also comment on the possible
implications of such axial charge segregation processes for baryon number
generation.Comment: 8 pages, 2 Encapsulated Postscript figures, uses ReVTeX and
epsfig.sty, expanded discussion, version to appear in Phys. Rev.
La discusión sobre el aborto provocado en el Congreso Nacional Brasileño: el papel del movimiento de mujeres
Antiproliferative effects of masitinib and imatinib against canine oral fibrosarcoma in vitro
Petrochemical structure of Early Vendian basalt series in the South-Western part of the East-European platform
Early Vendian volcanic volynskaya series in the South-Western part of the East-European platform contains two types of rock's paragenesa which differ by petrochemical trends. One of these types corresponds to tholeitic, other - to kimberlitic trends. Guestions of possible connections of Cu and Au mineralization with different paragenesa boundaries are discussed