Abstract
Using data samples of , , and collected with the Belle detector at the KEKB asymmetric-energy collider at center-of-mass energies 10.52 GeV, 10.58 GeV, and 10.876 GeV, respectively, we study the exclusive reactions , , and . (Charge-conjugate modes are included implicitly.) Significant signals of , , and are observed for the first time at these energies, and the energy dependencies of the cross sections are presented. On the other hand, no significant excesses for and are found, and we set limits on the cross section ratios , 20.0, and 5.4, and , 0.4, and 0.6, for center-of-mass energies of 10.52 GeV, 10.58 GeV, and 10.876 GeV, respectively, at the 90% C.L.
- Received 2 September 2013
DOI:https://doi.org/10.1103/PhysRevD.88.052019
© 2013 American Physical Society