Using data samples of 89 fb(-1), 703 fb(-1), and 121 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at center-of-mass energies 10.52 GeV, 10.58 GeV, and 10.876 GeV, respectively, we study the exclusive reactions e(+)e(-) -> omega pi(0), K*(892)(K) over bar, and K-2*(1430)(K) over bar. ( Charge-conjugate modes are included implicitly.) Significant signals of omega pi(0), K*(892)(0)(K) over bar (0), and K-2*(1430)K--(+) 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 K*(892)K--(+) and K-2*(1430)(0)(K) over bar (0) are found, and we set limits on the cross section ratios R-VP = sigma(B)(e(+)e(-)-> K*(892)K-0(0))/sigma(B)(e(+)e(-)-> K*(892)K--(+)) > 4.3, 20.0, and 5.4, and R-TP = sigma(B)(e(+)e(-) -> K-2*(1430)(0)(K) over bar (0))/sigma(B)(e(+)e(-)-> K-2*(1430)K--(+)) < 1.1, 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.
Matthias Finger, Konstantin Androsov, Qian Wang, Jan Steggemann, Yiming Li, Anna Mascellani, Varun Sharma, Xin Chen, Rakesh Chawla, Matteo Galli
Matthias Finger, Konstantin Androsov, Jan Steggemann, Qian Wang, Anna Mascellani, Yiming Li, Varun Sharma, Xin Chen, Rakesh Chawla, Matteo Galli
Matthias Finger, Konstantin Androsov, Qian Wang, Jan Steggemann, Yiming Li, Anna Mascellani, Varun Sharma, Xin Chen, Rakesh Chawla, Matteo Galli