Publication
Baryogenesis through split higgsogenesis
| dc.contributor.author | Davidson, Sacha | |
| dc.contributor.author | Felipe, Ricardo Gonzalez | |
| dc.contributor.author | Seródio, Hugo | |
| dc.contributor.author | Silva, João P. | |
| dc.date.accessioned | 2014-09-23T09:58:55Z | |
| dc.date.available | 2014-09-23T09:58:55Z | |
| dc.date.issued | 2013-11-12 | |
| dc.description.abstract | We study the cosmological evolution of asymmetries in the two-Higgs doublet extension of the Standard Model, prior to the electroweak phase transition. If Higgs flavour-exchanging interactions are sufficiently slow, then a relative asymmetry among the Higgs doublets corresponds to an effectively conserved quantum number. Since the magnitude of the Higgs couplings depends on the choice of basis in the :Higgs doublet space, we attempt to formulate basis-independent out-of-equilibrium conditions. We show that an initial asymmetry between the fliggs scalars, which could be generated by GP violation in the :Higgs sector, will be transformed into a baryon asymmetry by the sphalerons, without the need of B - L violation. This novel mechanism of baryogenesis through (split) Higgsogenesis is exemplified with simple scenarios based on the out-of-equilibrium decay of heavy singlet scalar fields into the illiggs doublets. | por |
| dc.identifier.citation | DAVIDSON, Sacha; [et al] - Baryogenesis through split higgsogenesis. Journal of High Energy Physics. Nr. 11 (2013). | por |
| dc.identifier.doi | 10.1007/JHEP11(2013)100 | |
| dc.identifier.issn | 1029-8479 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/3837 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Springer | por |
| dc.relation.ispartofseries | ;100 | |
| dc.relation.publisherversion | http://link.springer.com/article/10.1007%2FJHEP11(2013)100 | por |
| dc.subject | Higgs physics | por |
| dc.subject | CP violation | por |
| dc.title | Baryogenesis through split higgsogenesis | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | New York | por |
| oaire.citation.issue | 11 | por |
| oaire.citation.title | Journal of High Energy Physics | por |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
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