Anomalous Line Shape of the Cross Section for e{sup +}e{sup -}{yields} Hadrons in the Center-of-Mass Energy Region between 3.650 and 3.872 GeV
Journal Article
·
· Physical Review Letters
- Institute of High Energy Physics, Beijing 100049 (China)
We observe an obvious anomalous line shape of the e{sup +}e{sup -}{yields} hadrons total cross sections in the energy region between 3.700 and 3.872 GeV. It is inconsistent with the explanation for only one simple {psi}(3770) resonance with a statistical significance of 7{sigma}. The anomalous line shape may be explained by two possible enhancements of the inclusive hadron production near the center-of-mass energies of 3.764 and 3.779 GeV, indicating that either there is likely a new structure in addition to the {psi}(3770) resonance around 3.773 GeV, or there are some physics effects reflecting the DD production dynamics.
- OSTI ID:
- 21134190
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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