Published in:
Physical Review D 74,9 (2006) 091104;
Link to original published article:
http://dx.doi.org/10.1103/PhysRevD.74.091104
Abstract
Using 13.3 fb(-1) of e(+)e(-) collision data taken in the Upsilon(1S-4S) region with the CLEO III detector at the CESR collider, a search has been made for the new resonance Y(4260) recently reported by the BABAR Collaboration. The production of Y(4260) in initial state radiation (ISR), and its decay into pi(+)pi(-)J/psi, are confirmed. A good quality fit to our data is obtained with a single resonance. We determine M(Y(4260))=(4284(-16)(+17)(stat)+/- 4(syst)) MeV/c(2), Gamma(Y(4260))=(73(-25)(+39)(stat)+/- 5(syst)) MeV/c(2), and Gamma(ee)(Y(4260))xB(Y(4260)->pi(+)pi(-)J/psi)=(8.9(-3.1)(+3.9)(stat)+/- 1.8(syst)) eV/c(2).
Keywords
detector
Date of this Version
January 2006