Search for the glueball candidates f0(1500) and fJ(1710) in gamma gamma collisions

ALEPH Collaboration

doi:10.1016/S0370-2693(99)01390-8

paper

Search for the glueball candidates f0(1500) and fJ(1710) in gamma gamma collisions

arXiv:hep-ex/9911022 · doi:10.1016/S0370-2693(99)01390-8

Abstract

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal is observed and upper limits to the product of gamma gamma width and pi+pi- branching ratio of the f0(1500) and the fJ(1710) have been measured to be Gamma_(gamma gamma -> f0(1500)). BR(f0(1500)->pi+pi-) < 0.31 keV and Gamma_(gamma gamma -> fJ(1710)). BR(fJ(1710)->pi+pi-) < 0.55 keV at 95% confidence level.

10 pages, 3 figures