Ensemble fermions for electroweak dynamics and the fermion preheating temperature
We refine the implementation of ensemble fermions for the electroweak sector of the Standard Model, introduced previously. We consider the behavior of different observables as the size of the ensemble is increased and show that the dynamics converges for ensemble sizes small enough that simulations...
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Springer
2013
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| Online Access: | http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/1/1307.7924.pdf |
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nottingham-421512017-10-13T01:01:45Z http://eprints.nottingham.ac.uk/42151/ Ensemble fermions for electroweak dynamics and the fermion preheating temperature Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders We refine the implementation of ensemble fermions for the electroweak sector of the Standard Model, introduced previously. We consider the behavior of different observables as the size of the ensemble is increased and show that the dynamics converges for ensemble sizes small enough that simulations of the entire electroweak sector become numerically tractable. We apply the method to the computation of the effective preheating temperature during a fast electroweak transition, relevant for Cold Electroweak Baryogenesis. We find that this temperature is never below 20 GeV, and this in combination with the early results convincingly rules out Standard Model CP-violation as the origin of the baryon asymmetry of the Universe. Springer 2013-11-12 Article PeerReviewed application/pdf en http://eprints.nottingham.ac.uk/42151/1/1307.7924.pdf Mou, Zong-Gang and Saffin, Paul M. and Tranberg, Anders (2013) Ensemble fermions for electroweak dynamics and the fermion preheating temperature. Journal of High Energy Physics, 2013 (11). ISSN 1029-8479 http://link.springer.com/article/10.1007%2FJHEP11%282013%29097 doi:10.1007/JHEP11(2013)097 doi:10.1007/JHEP11(2013)097 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
University of Nottingham Malaysia Campus |
| building |
Nottingham Research Data Repository |
| collection |
Online Access |
| language |
English |
| description |
We refine the implementation of ensemble fermions for the electroweak sector of the Standard Model, introduced previously. We consider the behavior of different observables as the size of the ensemble is increased and show that the dynamics converges for ensemble sizes small enough that simulations of the entire electroweak sector become numerically tractable. We apply the method to the computation of the effective preheating temperature during a fast electroweak transition, relevant for Cold Electroweak Baryogenesis. We find that this temperature is never below 20 GeV, and this in combination with the early results convincingly rules out Standard Model CP-violation as the origin of the baryon asymmetry of the Universe. |
| format |
Article |
| author |
Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders |
| spellingShingle |
Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| author_facet |
Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders |
| author_sort |
Mou, Zong-Gang |
| title |
Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| title_short |
Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| title_full |
Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| title_fullStr |
Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| title_full_unstemmed |
Ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| title_sort |
ensemble fermions for electroweak dynamics and the fermion preheating temperature |
| publisher |
Springer |
| publishDate |
2013 |
| url |
http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/ http://eprints.nottingham.ac.uk/42151/1/1307.7924.pdf |
| first_indexed |
2018-09-06T13:18:07Z |
| last_indexed |
2018-09-06T13:18:07Z |
| _version_ |
1610864276488060928 |