796 research outputs found
Search for the glueball candidates f(0)(1500) and f(J)(1710) in gamma gamma collisions
No full textData 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-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) f0(1500)). BR(f0(1500)->pi+pi-) fJ(1710)). BR(fJ(1710)->pi+pi-) < 0.55 keV at 95% confidence level.Data taken with the ALEPH detector at LEP1 have been used to search for γγ production of the glueball candidates f 0 (1500) and f J (1710) via their decay to π + π − . No signal is observed and upper limits to the product of γγ width and π + π − branching ratio of the f 0 (1500) and the f J (1710) have been measured to be Γ(γγ→f 0 (1500))· B R (f 0 (1500)→π + π − )<0.31 keV and Γ(γγ→f J (1710))· B R (f J (1710)→π + π − )<0.55 keV at 95% confidence level
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