Phase transitions in the NMSSM

Koichi Funakubo, Shuichiro Tao, Fumihiko Toyoda

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

We study phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with the weak scale vacuum expectation values of the singlet scalar, constrained by Higgs spectrum and vacuum stability. We find four different types of phase transitions, three of which have two-stage nature. In particular, one of the two-stage transitions admits strongly first order electroweak phase transition, even with heavy squarks. We introduce a tree-level explicit CP violation in the Higgs sector, which does not affect the neutron electric dipole moment. In contrast to the MSSM with the CP violation in the squark sector, a strongly first order phase transition is not so weakened by this CP violation.

Original languageEnglish
Pages (from-to)369-389
Number of pages21
JournalProgress of Theoretical Physics
Volume114
Issue number2
DOIs
Publication statusPublished - Aug 1 2005

Fingerprint

CP violation
sectors
vacuum
electric moments
electric dipoles
dipole moments
scalars
neutrons

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Phase transitions in the NMSSM. / Funakubo, Koichi; Tao, Shuichiro; Toyoda, Fumihiko.

In: Progress of Theoretical Physics, Vol. 114, No. 2, 01.08.2005, p. 369-389.

Research output: Contribution to journalArticle

Funakubo, Koichi ; Tao, Shuichiro ; Toyoda, Fumihiko. / Phase transitions in the NMSSM. In: Progress of Theoretical Physics. 2005 ; Vol. 114, No. 2. pp. 369-389.
@article{7955ba5b07cd4a68b51a2402ebfee17f,
title = "Phase transitions in the NMSSM",
abstract = "We study phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with the weak scale vacuum expectation values of the singlet scalar, constrained by Higgs spectrum and vacuum stability. We find four different types of phase transitions, three of which have two-stage nature. In particular, one of the two-stage transitions admits strongly first order electroweak phase transition, even with heavy squarks. We introduce a tree-level explicit CP violation in the Higgs sector, which does not affect the neutron electric dipole moment. In contrast to the MSSM with the CP violation in the squark sector, a strongly first order phase transition is not so weakened by this CP violation.",
author = "Koichi Funakubo and Shuichiro Tao and Fumihiko Toyoda",
year = "2005",
month = "8",
day = "1",
doi = "10.1143/PTP.114.369",
language = "English",
volume = "114",
pages = "369--389",
journal = "Progress of Theoretical Physics",
issn = "0033-068X",
publisher = "Published for the Research Institute for Fundamental Physics by Physical Society of Japan",
number = "2",

}

TY - JOUR

T1 - Phase transitions in the NMSSM

AU - Funakubo, Koichi

AU - Tao, Shuichiro

AU - Toyoda, Fumihiko

PY - 2005/8/1

Y1 - 2005/8/1

N2 - We study phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with the weak scale vacuum expectation values of the singlet scalar, constrained by Higgs spectrum and vacuum stability. We find four different types of phase transitions, three of which have two-stage nature. In particular, one of the two-stage transitions admits strongly first order electroweak phase transition, even with heavy squarks. We introduce a tree-level explicit CP violation in the Higgs sector, which does not affect the neutron electric dipole moment. In contrast to the MSSM with the CP violation in the squark sector, a strongly first order phase transition is not so weakened by this CP violation.

AB - We study phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with the weak scale vacuum expectation values of the singlet scalar, constrained by Higgs spectrum and vacuum stability. We find four different types of phase transitions, three of which have two-stage nature. In particular, one of the two-stage transitions admits strongly first order electroweak phase transition, even with heavy squarks. We introduce a tree-level explicit CP violation in the Higgs sector, which does not affect the neutron electric dipole moment. In contrast to the MSSM with the CP violation in the squark sector, a strongly first order phase transition is not so weakened by this CP violation.

UR - http://www.scopus.com/inward/record.url?scp=27844485083&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27844485083&partnerID=8YFLogxK

U2 - 10.1143/PTP.114.369

DO - 10.1143/PTP.114.369

M3 - Article

VL - 114

SP - 369

EP - 389

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

SN - 0033-068X

IS - 2

ER -