Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields

Details Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields

2002-08-05

arxiv.org/abs/hep-ph/0208046v2

Phys.Rev. D66 (2002) 103503

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 3 Postscript figures, uses RevTeX4. Expanded discussion, published version

Scientific paper

10.1103/PhysRevD.66.103503

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.

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