期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.232001
关键词
-
资金
- MEXT(Japan)
- JSPS(Japan)
- Nagoya's TLPRC (Japan)
- ARC (Australia)
- DIISR (Australia)
- NSFC (China)
- MSMT (Czechia)
- DST (India)
- INFN (Italy)
- MEST (Korea)
- NRF (Korea)
- GSDC of KISTI (Korea)
- WCU (Korea)
- MNiSW (Poland)
- MES (Russia)
- RFAAE (Russia)
- ARRS (Slovenia)
- SNSF (Switzerland)
- NSC (Taiwan)
- MOE (Taiwan)
- DOE (USA)
- NSF (USA)
The processes gamma gamma -> omega phi,phi phi, and omega omega are measured using an 870 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the eta(c), chi(c0), and chi(c2) two-photon decay widths and branching fractions to omega phi,phi phi, and omega omega.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据