Glueball enhancements in p(gamma,VV)p through vector meson dominance

Details Glueball enhancements in p(gamma,VV)p through vector meson dominance Glueball enhancements in p(gamma,VV)p through vector meson dominance

2004-03-17

arxiv.org/abs/nucl-th/0403051v1

Phys.Rev. C70 (2004) 055201

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1103/PhysRevC.70.055201

Double vector meson photoproduction, p(gamma, G -> VV)p, mediated by a scalar glueball G is investigated. Using vector meson dominance (VMD) and Regge/pomeron phenomenology, a measureable glueball enhancement is predicted in the invariant VV = rho rho and omega omega mass spectra. The scalar glueball is assumed to be the lightest physical state on the daughter pomeron trajectory governing diffractive vector meson photoproduction. In addition to cross sections, calculations for hadronic and electromagnetic glueball decays, G -> V V' (V,V'= rho, omega, phi, gamma), and gamma_v V -> G transition form factors are presented based upon flavor universality, VMD and phenomenological couplings from phi photoproduction analyses. The predicted glueball decay widths are similar to an independent theoretical study. A novel signature for glueball detection is also discussed.

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