Laine, Mikko; Nardini, G.; Rummukainen, K. (2013). Lattice study of an electroweak phase transition at mh ~ 126 GeV. Journal of cosmology and astroparticle physics, 2013(1), 011. Institute of Physics Publishing IOP 10.1088/1475-7516/2013/01/011
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We carry out lattice simulations of a cosmological electroweak phase transition for a Higgs mass mh 126 GeV. The analysis is based on a dimensionally reduced effective theory for an MSSM-like scenario including a relatively light coloured SU(2)-singlet scalar, referred to as a right-handed stop. The non-perturbative transition is stronger than in 2-loop perturbation theory, and may offer a window for electroweak baryogenesis. The main remaining uncertainties concern the physical value of the right-handed stop mass which according to our analysis could be as high as mR 155 GeV; a more precise effective theory derivation and vacuum renormalization than available at present are needed for confirming this value.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Theoretical Physics 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Laine, Mikko Sakari |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1475-7516 |
Publisher: |
Institute of Physics Publishing IOP |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
19 Jun 2014 08:42 |
Last Modified: |
05 Dec 2022 14:29 |
Publisher DOI: |
10.1088/1475-7516/2013/01/011 |
BORIS DOI: |
10.7892/boris.43755 |
URI: |
https://boris.unibe.ch/id/eprint/43755 |
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