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Observation of a near-threshold enhancement in the omega(phi) mass spectrum from the doubly OZI-suppressed decay J/psi-->gamma(omega)phi.
- Source :
-
Physical review letters [Phys Rev Lett] 2006 Apr 28; Vol. 96 (16), pp. 162002. Date of Electronic Publication: 2006 Apr 27. - Publication Year :
- 2006
-
Abstract
- An enhancement near threshold is observed in the omega(phi) invariant mass spectrum from the doubly Okubo-Zweig-Iizuka-suppressed decays of J/psi-->gamma(omega)phi, based on a sample of 5.8 x 10(7) J/psi events collected with the BESII detector. A partial wave analysis shows that this enhancement favors JP=0+, and its mass and width are M=1812(+19)(-26)(stat)+/-18(syst) MeV/c2 and Gamma=105+/-20(stat)+/-28(syst) MeV/c2. The product branching fraction is determined to be B(J/psi-->gammaX)B(X-->omega(phi))=[2.61+/-0.27(stat)+/-0.65(syst)]x10(-4).
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 96
- Issue :
- 16
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 16712215
- Full Text :
- https://doi.org/10.1103/PhysRevLett.96.162002