Chiral fermion mass and dispersion relations at finite temperature in the presence of hypermagnetic fields
arXiv:hep-ph/0308212 · doi:10.1103/PhysRevD.69.045008
Abstract
We study the modifications to the real part of the thermal self-energy for chiral fermions in the presence of a constant external hypermagnetic field. We compute the dispersion relation for fermions occupying a given Landau level to first order in g'^2, g^2 and g_phi^2 and to all orders in g'B, where g' and g are the U(1)_Y and SU(2)_L couplings of the standard model, respectively, g_phi is the fermion Yukawa coupling, and B is the hypermagnetic field strength. We show that in the limit where the temperature is large compared to sqrt{g'B}, left- and right-handed modes acquire finite and different B-dependent masses due to the chiral nature of their coupling with the external field. Given the current bounds on the strength of primordial magnetic fields, we argue that the above is the relevant scenario to study the effects of magnetic fields on the propagation of fermions prior and during the electroweak phase transition.
arXiv comment11 pages 4 figures, published version
References in corpus (19)
- Magnetic Fields in the Early Universe
- Origin of Galactic and Extragalactic Magnetic Fields
- A New Radio - X-Ray Probe of Galaxy Cluster Magnetic Fields
- Constraints on a Primordial Magnetic Field
- Primordial Magnetic Fields from Cosmological First Order Phase Transitions
- Magnetic Fields Produced by Phase Transition Bubbles in the Electroweak Phase Transition
- Primordial Magnetic Fields
- Magnetic fields in cluster cores: Faraday rotation in A400 and A2634
- Milestones in the Observations of Cosmic Magnetic Fields
- Field theory of the photon self-energy in a medium with a magnetic field and the Faraday effect
- Cosmological magnetic fields
- Large scale magnetogenesis from a non-equilibrium phase transition in the radiation dominated era
- Thermal Fermionic Dispersion Relations in a Magnetic Field
- Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields
- Axially asymmetric fermion scattering off electroweak phase transition bubble walls with hypermagnetic fields
- Axial charge segregation and CP violation during the electroweak phase transition with hypermagnetic fields
- Neutrinos under Strong Magnetic Fields
- Hypermagnetic Field Effects in the Thermal Bath of Chiral Fermions
- Primordial magnetic fields
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