Is the threshold enhancement in γγ → ϱ0ϱ0 evidence for an isoscalar, JPC = 0++ exotic state? |
| |
| Authors: | Rohini M. Godbole K.V.L. Sarma |
| |
| Affiliation: | Tata Institute of Fundamental Research, Bombay 400005, India |
| |
| Abstract: | The threshold enhancement in the cross section γγ → ?0?0, including the lower energy point reported by the CELLO group, and the observed angular distributions have been interpreted in terms of an isoscalar resonance with JPC = 0++, mass 1450–1550 MeV and width 100–150 MeV. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
