Effect of CP-violation on the sphaleron rate
| Authors |
|
| Publication date |
2000
|
| Journal |
Nuclear Physics B
|
| Volume | Issue number |
478
|
| Pages (from-to) |
275-279
|
| Organisations |
-
Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for Theoretical Physics Amsterdam (ITFA)
|
| Abstract |
We calculate the effect of two CP-violating (dimension-eight) operators of the SU(2)-Higgs model on the motion along a particular path from the vacuum to the sphaleron. It turns out that CP-violation may introduce a difference between the sphaleron rate towards larger Chern-Simons number and the rate towards smaller Chern-Simons number. Such a difference induces a non-zero baryon-number without a first order phase transition.
|
| Document type |
Article
|
|
Permalink to this page
|
Back