Search for the glueball candidates f(0)(1500) and f(J)(1710) in gamma gamma collisions
Collaboration
14 pages
Published in:
- Phys.Lett.B 472 (2000) 189-199
e-Print:
- hep-ex/9911022 [hep-ex]
Report number:
- CERN-EP-99-153
Experiments:
View in:
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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.Note:
- 10 pages, 3 figures Report-no: CERN-EP/99-153
- electron positron: colliding beams
- exchange: two-photon
- photon photon: interaction
- glueball: search for
- f0(1500): hadronic decay
- f0(1710): hadronic decay
- mass spectrum: (pi+ pi-)
- channel cross section: branching ratio
- upper limit
- ALEPH
References(20)
Figures(4)