SUSY and the electroweak phase transition

Glennys R. Farrar; Marta Losada

doi:10.1016/S0370-2693(97)00663-1

SUSY and the electroweak phase transition

Glennys R. Farrar, Marta Losada

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We analyze the effective three-dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low-temperature phase. We find that the inclusion of all supersymmetric scalars and all one-loop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass M_h ≲ 70 GeV and tan β ≲ 1.75.

Original language	English (US)
Pages (from-to)	60-65
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	406
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)00663-1
State	Published - Jul 31 1997

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(97)00663-1

Fingerprint Dive into the research topics of 'SUSY and the electroweak phase transition'. Together they form a unique fingerprint.

Cite this

@article{9323886365164dda842a4685399654ed,

title = "SUSY and the electroweak phase transition",

abstract = "We analyze the effective three-dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low-temperature phase. We find that the inclusion of all supersymmetric scalars and all one-loop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass Mh ≲ 70 GeV and tan β ≲ 1.75.",

author = "Farrar, {Glennys R.} and Marta Losada",

year = "1997",

month = jul,

day = "31",

doi = "10.1016/S0370-2693(97)00663-1",

language = "English (US)",

volume = "406",

pages = "60--65",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - SUSY and the electroweak phase transition

AU - Farrar, Glennys R.

AU - Losada, Marta

PY - 1997/7/31

Y1 - 1997/7/31

N2 - We analyze the effective three-dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low-temperature phase. We find that the inclusion of all supersymmetric scalars and all one-loop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass Mh ≲ 70 GeV and tan β ≲ 1.75.

AB - We analyze the effective three-dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low-temperature phase. We find that the inclusion of all supersymmetric scalars and all one-loop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass Mh ≲ 70 GeV and tan β ≲ 1.75.

UR - http://www.scopus.com/inward/record.url?scp=0041155244&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0041155244&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(97)00663-1

DO - 10.1016/S0370-2693(97)00663-1

M3 - Article

AN - SCOPUS:0041155244

VL - 406

SP - 60

EP - 65

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-2

ER -