Laine, Mikko Sakari; Nardini, G.; Rummukainen, K. (20 November 2014). First order thermal phase transition with 126 GeV Higgs mass. PoS - proceedings of science, LATTICE2013(104). Scuola Internazionale Superiore di Studi Avanzati SISSA
|
Text
LATTICE 2013_104.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-Share Alike (CC-BY-NC-SA). Download (228kB) | Preview |
We study the strength of the electroweak phase transition in models with two light Higgs doublets and a light SU(3)c triplet by means of lattice simulations in a dimensionally reduced effective theory. In the parameter region considered the transition on the lattice is significantly stronger than indicated by a 2-loop perturbative analysis. Within some ultraviolet uncertainties, the finding applies to MSSM with a Higgs mass mh ≈ 126 GeV and shows that the parameter region useful for electroweak baryogenesis is enlarged. In particular (even though only dedicated analyses can quantify the issue), the tension between LHC constraints after the 7 TeV and 8 TeV runs and frameworks where the electroweak phase transition is driven by light stops, seems to be relaxed.
Item Type: |
Conference or Workshop Item (Paper) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Laine, Mikko Sakari |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1824-8039 |
Publisher: |
Scuola Internazionale Superiore di Studi Avanzati SISSA |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
02 Dec 2014 14:05 |
Last Modified: |
05 Dec 2022 14:38 |
BORIS DOI: |
10.7892/boris.60600 |
URI: |
https://boris.unibe.ch/id/eprint/60600 |
Actions (login required)
 |
Edit item |