Limit on the Two-Photon Production of the Glueball Candidate fJ(2220) at the Cornell Electron Storage Ring

R. Godang et al. (CLEO Collaboration)
Phys. Rev. Lett. 79, 3829 – Published 17 November 1997
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Abstract

We use the CLEO detector at the Cornell e+e storage ring, CESR, to search for the two-photon production of the glueball candidate fJ(2220) in its decay to KsKs. We present a restrictive upper limit on the product of the two-photon partial width and the KsKs branching fraction, (γγγBKsKs)fJ(2220). We use this limit to calculate a lower limit on the stickiness, which is a measure of the two-gluon coupling relative to the two-photon coupling. This limit on stickiness indicates that the fJ(2220) has substantial glueball content.

  • Received 18 March 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.3829

©1997 American Physical Society

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Vol. 79, Iss. 20 — 17 November 1997

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