Classical issues in electroweak baryogenesis

Details Classical issues in electroweak baryogenesis Classical issues in electroweak baryogenesis

2003-09-15

arxiv.org/abs/hep-lat/0309082v2

Physics

High Energy Physics

High Energy Physics - Lattice

Proceedings Lattice 2003 (Higgs), 3 pages; added references

Scientific paper

10.1016/S0920-5632(03)02707-5

In one scenario of baryogenesis, the matter-antimatter asymmetry was generated in the early universe during a cold electroweak transition. We model this transition by changing the sign of the effective mass-squared parameter of the Higgs field from positive to negative. The resulting `tachyonic' instability leads to a rapid growth of occupation numbers, such that a classical approximation can be made in computing subsequent developments in real time. We solve the classical equations of motion in the SU(2)-Higgs model under the influence of effective CP-violation. The resulting baryon asymmetry follows from the generated Chern-Simons number using the anomaly equation. The `classical' difficulties with lattice implementations of these observables are avoided here because the fields are smooth on the lattice scale.

Affiliated with

Also associated with

No associations

Rating

Classical issues in electroweak baryogenesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Classical issues in electroweak baryogenesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classical issues in electroweak baryogenesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-511262