Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions
We present a first-principles numerical computation of the baryon asymmetry in electroweak-scale baryogenesis. For the scenario of Cold Baryogenesis, we consider a one fermion-family reduced CP-violating two Higgs-doublet model, including a classical SU(2)-gauge/two-Higgs sector coupled to one quant...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Springer
2015
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/42157/ |
| _version_ | 1848796434308005888 |
|---|---|
| author | Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders |
| author_facet | Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders |
| author_sort | Mou, Zong-Gang |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We present a first-principles numerical computation of the baryon asymmetry in electroweak-scale baryogenesis. For the scenario of Cold Baryogenesis, we consider a one fermion-family reduced CP-violating two Higgs-doublet model, including a classical SU(2)-gauge/two-Higgs sector coupled to one quantum left-handed fermion doublet and two right-handed singlets. Separately, the C(CP) breaking of the two-Higgs potential and the C and P breaking of the gauge-fermion interactions do not provide a baryon asymmetry. Only when combined does baryogenesis occur. Through large-scale computer simulations, we compute the asymmetry for one particularly favourable scalar potential. The numerical signal is at the boundary of what is numerically discernible with the available computer resources, but we tentatively find an asymmetry of |η|≤3.5×10−7. |
| first_indexed | 2025-11-14T19:47:55Z |
| format | Article |
| id | nottingham-42157 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:47:55Z |
| publishDate | 2015 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-421572020-05-04T17:10:06Z https://eprints.nottingham.ac.uk/42157/ Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders We present a first-principles numerical computation of the baryon asymmetry in electroweak-scale baryogenesis. For the scenario of Cold Baryogenesis, we consider a one fermion-family reduced CP-violating two Higgs-doublet model, including a classical SU(2)-gauge/two-Higgs sector coupled to one quantum left-handed fermion doublet and two right-handed singlets. Separately, the C(CP) breaking of the two-Higgs potential and the C and P breaking of the gauge-fermion interactions do not provide a baryon asymmetry. Only when combined does baryogenesis occur. Through large-scale computer simulations, we compute the asymmetry for one particularly favourable scalar potential. The numerical signal is at the boundary of what is numerically discernible with the available computer resources, but we tentatively find an asymmetry of |η|≤3.5×10−7. Springer 2015-06-24 Article PeerReviewed Mou, Zong-Gang, Saffin, Paul M. and Tranberg, Anders (2015) Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions. Journal of High Energy Physics, 2015 . ISSN 1029-8479 Cosmology of Theories beyond the SM Nonperturbative Effects CP violation Lattice Quantum Field Theory https://link.springer.com/article/10.1007%2FJHEP06%282015%29163 doi:10.1007/JHEP06(2015)163 doi:10.1007/JHEP06(2015)163 |
| spellingShingle | Cosmology of Theories beyond the SM Nonperturbative Effects CP violation Lattice Quantum Field Theory Mou, Zong-Gang Saffin, Paul M. Tranberg, Anders Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title | Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title_full | Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title_fullStr | Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title_full_unstemmed | Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title_short | Cold Baryogenesis from first principles in the two-Higgs doublet model with fermions |
| title_sort | cold baryogenesis from first principles in the two-higgs doublet model with fermions |
| topic | Cosmology of Theories beyond the SM Nonperturbative Effects CP violation Lattice Quantum Field Theory |
| url | https://eprints.nottingham.ac.uk/42157/ https://eprints.nottingham.ac.uk/42157/ https://eprints.nottingham.ac.uk/42157/ |