Nonrestoration of spontaneously broken P and CP at high temperature

Gia Dvali, Alejandra Melfo, Goran Senjanović

    Research output: Contribution to journalArticle

    Abstract

    The possibility of P and CP violation at high temperature in models where these symmetries are spontaneously broken is investigated. It is found that in minimal models that include singlet fields, high T nonrestoration is possible for a wide range of parameters of the theory, in particular, in models of CP violation with a CP-odd Higgs field. The same holds true for the invisible axion version of the Peccei-Quinn mechanism. This can provide both a way out for the domain wall problem in these theories and the CP violation required for baryogenesis. In the case of spontaneous P violation it turns out that high T nonrestoration requires going beyond the minimal model. The results are shown to hold true when next-to-leading order effects are considered.

    Original languageEnglish (US)
    Pages (from-to)7857-7866
    Number of pages10
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume54
    Issue number12
    StatePublished - Dec 15 1996

    Fingerprint

    CP Violation
    CP violation
    Minimal Model
    Domain Wall
    Higgs
    Odd
    domain wall
    Symmetry
    Model
    Range of data
    symmetry

    ASJC Scopus subject areas

    • Mathematical Physics
    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Physics and Astronomy (miscellaneous)

    Cite this

    Nonrestoration of spontaneously broken P and CP at high temperature. / Dvali, Gia; Melfo, Alejandra; Senjanović, Goran.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 54, No. 12, 15.12.1996, p. 7857-7866.

    Research output: Contribution to journalArticle

    Dvali, Gia ; Melfo, Alejandra ; Senjanović, Goran. / Nonrestoration of spontaneously broken P and CP at high temperature. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1996 ; Vol. 54, No. 12. pp. 7857-7866.
    @article{63068585df164c7ab1b57be24f5bcc62,
    title = "Nonrestoration of spontaneously broken P and CP at high temperature",
    abstract = "The possibility of P and CP violation at high temperature in models where these symmetries are spontaneously broken is investigated. It is found that in minimal models that include singlet fields, high T nonrestoration is possible for a wide range of parameters of the theory, in particular, in models of CP violation with a CP-odd Higgs field. The same holds true for the invisible axion version of the Peccei-Quinn mechanism. This can provide both a way out for the domain wall problem in these theories and the CP violation required for baryogenesis. In the case of spontaneous P violation it turns out that high T nonrestoration requires going beyond the minimal model. The results are shown to hold true when next-to-leading order effects are considered.",
    author = "Gia Dvali and Alejandra Melfo and Goran Senjanović",
    year = "1996",
    month = "12",
    day = "15",
    language = "English (US)",
    volume = "54",
    pages = "7857--7866",
    journal = "Physical review D: Particles and fields",
    issn = "1550-7998",
    publisher = "American Institute of Physics",
    number = "12",

    }

    TY - JOUR

    T1 - Nonrestoration of spontaneously broken P and CP at high temperature

    AU - Dvali, Gia

    AU - Melfo, Alejandra

    AU - Senjanović, Goran

    PY - 1996/12/15

    Y1 - 1996/12/15

    N2 - The possibility of P and CP violation at high temperature in models where these symmetries are spontaneously broken is investigated. It is found that in minimal models that include singlet fields, high T nonrestoration is possible for a wide range of parameters of the theory, in particular, in models of CP violation with a CP-odd Higgs field. The same holds true for the invisible axion version of the Peccei-Quinn mechanism. This can provide both a way out for the domain wall problem in these theories and the CP violation required for baryogenesis. In the case of spontaneous P violation it turns out that high T nonrestoration requires going beyond the minimal model. The results are shown to hold true when next-to-leading order effects are considered.

    AB - The possibility of P and CP violation at high temperature in models where these symmetries are spontaneously broken is investigated. It is found that in minimal models that include singlet fields, high T nonrestoration is possible for a wide range of parameters of the theory, in particular, in models of CP violation with a CP-odd Higgs field. The same holds true for the invisible axion version of the Peccei-Quinn mechanism. This can provide both a way out for the domain wall problem in these theories and the CP violation required for baryogenesis. In the case of spontaneous P violation it turns out that high T nonrestoration requires going beyond the minimal model. The results are shown to hold true when next-to-leading order effects are considered.

    UR - http://www.scopus.com/inward/record.url?scp=0000147169&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0000147169&partnerID=8YFLogxK

    M3 - Article

    VL - 54

    SP - 7857

    EP - 7866

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 1550-7998

    IS - 12

    ER -