Nov 1, 2018
Observation of e + e - → γχ <inf>c1</inf> and search for e + e - → γχ <inf>c0</inf> , γχ <inf>c2</inf> , and γη <inf>c</inf> at √s near 10.6 GeV at Belle
Physical Review D
- Volume
- 98
- Number
- 9
- First page
- 092015-1
- Last page
- 092015-8
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/PhysRevD.98.092015
© 2018 authors. Published by the American Physical Society. Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90% credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.
- Link information
-
- DOI
- https://doi.org/10.1103/PhysRevD.98.092015
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85058113571&origin=inward Open access
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85058113571&origin=inward
- URL
- https://link.aps.org/doi/10.1103/PhysRevD.98.092015
- ID information
-
- DOI : 10.1103/PhysRevD.98.092015
- ISSN : 2470-0010
- eISSN : 2470-0029
- SCOPUS ID : 85058113571