Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-07-02
Phys.Rev. D71 (2005) 036001
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 4 figures. v2: corrected typos, improved discussion of the case lambda<0 and added references. To be published in PRD
Scientific paper
10.1103/PhysRevD.71.036001
We study the possibility of a first-order electroweak phase transition (EWPT) due to a dimension-six operator in the effective Higgs potential. In contrast with previous attempts to make the EWPT strongly first-order as required by electroweak baryogenesis, we do not rely on large one-loop thermally generated cubic Higgs interactions. Instead, we augment the Standard Model (SM) effective theory with a dimension-six Higgs operator. This addition enables a strong first-order phase transition to develop even with a Higgs boson mass well above the current direct limit of 114 GeV. The phi^6 term can be generated for instance by strong dynamics at the TeV scale or by integrating out heavy particles like an additional singlet scalar field. We discuss conditions to comply with electroweak precision constraints, and point out how future experimental measurements of the Higgs self couplings could test the idea.
Grojean Christophe
Servant Geraldine
Wells James
No associations
LandOfFree
First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-203709