High energy electron signals from dark matter annihilation in the Sun

Philip Schuster, Natalia Toro, Neal Weiner, Itay Yavin

    Research output: Contribution to journalArticle

    Abstract

    In this paper we discuss two mechanisms by which high-energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the Sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the Sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the Sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.

    Original languageEnglish (US)
    Article number115012
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume82
    Issue number11
    DOIs
    StatePublished - Dec 9 2010

    Fingerprint

    high energy electrons
    dark matter
    sun
    field of view
    escape
    halos
    electrons
    signatures
    radiation

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    High energy electron signals from dark matter annihilation in the Sun. / Schuster, Philip; Toro, Natalia; Weiner, Neal; Yavin, Itay.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 82, No. 11, 115012, 09.12.2010.

    Research output: Contribution to journalArticle

    Schuster, Philip ; Toro, Natalia ; Weiner, Neal ; Yavin, Itay. / High energy electron signals from dark matter annihilation in the Sun. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2010 ; Vol. 82, No. 11.
    @article{f8fb5639661c453c8b697d987273331a,
    title = "High energy electron signals from dark matter annihilation in the Sun",
    abstract = "In this paper we discuss two mechanisms by which high-energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the Sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the Sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the Sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.",
    author = "Philip Schuster and Natalia Toro and Neal Weiner and Itay Yavin",
    year = "2010",
    month = "12",
    day = "9",
    doi = "10.1103/PhysRevD.82.115012",
    language = "English (US)",
    volume = "82",
    journal = "Physical review D: Particles and fields",
    issn = "1550-7998",
    publisher = "American Institute of Physics",
    number = "11",

    }

    TY - JOUR

    T1 - High energy electron signals from dark matter annihilation in the Sun

    AU - Schuster, Philip

    AU - Toro, Natalia

    AU - Weiner, Neal

    AU - Yavin, Itay

    PY - 2010/12/9

    Y1 - 2010/12/9

    N2 - In this paper we discuss two mechanisms by which high-energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the Sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the Sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the Sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.

    AB - In this paper we discuss two mechanisms by which high-energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the Sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the Sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the Sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.

    UR - http://www.scopus.com/inward/record.url?scp=78651268451&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=78651268451&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevD.82.115012

    DO - 10.1103/PhysRevD.82.115012

    M3 - Article

    AN - SCOPUS:78651268451

    VL - 82

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 1550-7998

    IS - 11

    M1 - 115012

    ER -