Light gluino mass and condensate from properties of η and η′

Glennys R. Farrar, G. T. Gabadadze

    Research output: Contribution to journalArticle

    Abstract

    We investigate whether known properties of the η′ meson are consistent with its being the Goldstone boson of the spontaneously broken anomaly-free R symmetry required in the light gluino scenario. We fit the masses and 2γ decays of the η and η′ mesons, and also their production in radiative J/ψ decays. We find that the η - η′ system is well-described in the light gluino scenario, if mλ ≃ (84-144) MeV and 〈λ̄λ〉 ≃ - (0.15-0.36) GeV3. These values are in the range expected when the gluino gets its mass entirely from radiative corrections.

    Original languageEnglish (US)
    Pages (from-to)104-111
    Number of pages8
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume397
    Issue number1-2
    StatePublished - Mar 27 1997

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    condensates
    mesons
    decay
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    anomalies
    symmetry

    Keywords

    • Light gluino
    • Pseudoscalar mesons
    • Sum rules

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Light gluino mass and condensate from properties of η and η′. / Farrar, Glennys R.; Gabadadze, G. T.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 397, No. 1-2, 27.03.1997, p. 104-111.

    Research output: Contribution to journalArticle

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