Journal article
Measurement of e e-→ωπ0, K *(892)K̄ and K2*(1430)K̄ at √s near 10.6 GeV
CP Shen, CZ Yuan, A Sibidanov, P Wang, K Hayasaka, XL Wang, I Adachi, H Aihara, DM Asner, T Aushev, AM Bakich, A Bala, V Bhardwaj, B Bhuyan, A Bondar, G Bonvicini, A Bozek, M Bračko, TE Browder, MC Chang Show all
Physical Review D Particles Fields Gravitation and Cosmology | Published : 2013
Abstract
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-→ωπ0, K*(892)K̄, and K2*(1430)K̄. (Charge-conjugate modes are included implicitly.) Significant signals of ωπ0, K*(892)0K ̄0, and K2*(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 K2*(1430) 0K ̄0 are found, and we set limits on the cross section ratios RVP=σB(e+e-→K *(892) 0K̄0)σB(e +e-→K*(892)-K +)>4.3, 20...
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Awarded by Fundamental Research Funds for the Central Universities of China
Funding Acknowledgements
We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET4 network support. We acknowledge support from MEXT, JSPS, and Nagoya's TLPRC (Japan); ARC and DIISR (Australia); FWF (Austria); NSFC (China); MSMT (Czechia); CZF, DFG, and VS (Germany); DST (India); INFN (Italy); MEST, NRF, GSDC of KISTI, and WCU (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA). This work is supported partly by the Fundamental Research Funds for the Central Universities of China (303236).