期刊
PHYSICAL REVIEW D
卷 89, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.89.072015
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资金
- MEXT
- JSPS and Nagoya's TLPRC (Japan)
- ARC and DIISR (Australia)
- FWF (Austria)
- NSFC (China)
- MSMT (Czech Republic)
- CZF, DFG, and VS (Germany)
- DST (India)
- INFN (Italy)
- MOE, MSIP, NRF, GSDC of KISTI, BK21Plus, and WCU (Korea)
- MNiSW and NCN (Poland)
- MES and RFAAE (Russia)
- ARRS (Slovenia)
- IKERBASQUE and UPV/EHU (Spain)
- SNSF (Switzerland)
- NSC and MOE (Taiwan)
- DOE and NSF (USA)
- Austrian Science Fund (FWF) [P 22742] Funding Source: researchfish
The cross sections of the processes e(+)e(-)-> K(+)K(-)J/Psi and K(s)(0)K(s)(0)J/Psi are measured via initial state radiation at center-of-mass energies between the threshold and 6.0 GeV using a data sample of 980 fb(-1) collected with the Belle detector on or near the r(nS) resonances, where n=1,2,..5. The cross sections for e(+)e(-)-> K(+)K(-)J/Psi are at a few pb level and the average cross section for K(s)(0)K(s)(0)J/Psi is 1.8 +/- 0.6 (stat)+/- 0.3(syst) pb between 4.4 and 5.2 GeV. All of them are consistent with previously published results with improved precision. A search for resonant structures and associated intermediate states in the cross section of the process e(+)e(-)-> K(+)K(-)J/Psi is performed.
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