Search for ηc' decays into vector meson pairs
Abstract
The processes ηc'→ρ0ρ0, K*0K¯*0, and ϕϕ are searched for using a sample of 1.06×108 ψ' events collected with the BESIII detector at the BEPCII collider. No signals are observed in any of the three final states. The upper limits on the decay branching fractions are determined to be B(ηc'→ρ0ρ0)<3.1×10-3, B(ηc'→K*0K¯*0)<5.4×10-3, and B(ηc'→ϕϕ)<2.0×10-3 at the 90% confidence level. The upper limits are lower than the existing theoretical predictions.
- Publication:
-
Physical Review D
- Pub Date:
- November 2011
- DOI:
- 10.1103/PhysRevD.84.091102
- arXiv:
- arXiv:1110.0949
- Bibcode:
- 2011PhRvD..84i1102A
- Keywords:
-
- 14.40.Pq;
- 12.38.Qk;
- 13.20.Gd;
- 13.25.Gv;
- Experimental tests;
- Decays of J/psi Upsilon and other quarkonia;
- High Energy Physics - Experiment
- E-Print:
- 7 pages, 9 figures, 2 tables