### 抄録

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.

元の言語 | 英語 |
---|---|

ページ（範囲） | 369-389 |

ページ数 | 21 |

ジャーナル | Progress of Theoretical Physics |

巻 | 114 |

発行部数 | 2 |

DOI | |

出版物ステータス | 出版済み - 8 1 2005 |

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### All Science Journal Classification (ASJC) codes

- Physics and Astronomy (miscellaneous)

### これを引用

*Progress of Theoretical Physics*,

*114*(2), 369-389. https://doi.org/10.1143/PTP.114.369

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

研究成果: ジャーナルへの寄稿 › 記事

*Progress of Theoretical Physics*, 巻. 114, 番号 2, pp. 369-389. https://doi.org/10.1143/PTP.114.369

}

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

AN - SCOPUS:27844485083

VL - 114

SP - 369

EP - 389

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

SN - 0033-068X

IS - 2

ER -