Relic abundance of light photinos

D. J H Chung, Glennys R. Farrar, Edward W. Kolb

    Research output: Contribution to journalArticle

    Abstract

    We solve the coupled Boltzmann equation for the system of light photinos interacting with pions and R0,s (the gluon-gluino bound state) to determine the relic abundance of light photinos in the light gaugino scenario. Cosmology bounds the ratio r of the R0 mass to the γ mass to be less than about 1.8. We also use a model Lagrangian embodying crossing symmetry between the R0↔γππ and R0π↔γπ reactions to identify cosmologically favored regions of R0 lifetime as a function of R0 and γ masses.

    Original languageEnglish (US)
    Pages (from-to)6096-6106
    Number of pages11
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume56
    Issue number10
    StatePublished - Nov 15 1997

    Fingerprint

    Cosmology
    Boltzmann Equation
    Bound States
    cosmology
    Lifetime
    pions
    Symmetry
    life (durability)
    Scenarios
    symmetry
    Model

    ASJC Scopus subject areas

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

    Cite this

    Chung, D. J. H., Farrar, G. R., & Kolb, E. W. (1997). Relic abundance of light photinos. Physical Review D - Particles, Fields, Gravitation and Cosmology, 56(10), 6096-6106.

    Relic abundance of light photinos. / Chung, D. J H; Farrar, Glennys R.; Kolb, Edward W.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 56, No. 10, 15.11.1997, p. 6096-6106.

    Research output: Contribution to journalArticle

    Chung, DJH, Farrar, GR & Kolb, EW 1997, 'Relic abundance of light photinos', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 56, no. 10, pp. 6096-6106.
    Chung, D. J H ; Farrar, Glennys R. ; Kolb, Edward W. / Relic abundance of light photinos. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 ; Vol. 56, No. 10. pp. 6096-6106.
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