Precision measurements of the Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV
Journal Article
·
· Physical Review D
Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV, corresponding to a luminosity of about 5.0 fb–1. The results are compatible with the BABAR measurements, but with the precision significantly improved. A simple 1/sn dependence for the continuum process can describe the measured cross sections, but a better fit is obtained by an additional resonance near 4.2 GeV, which could be an excited charmonium or a charmoniumlike state.
- Research Organization:
- Indiana Univ., Bloomington, IN (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Univ. of Hawaii, Honolulu, HI (United States); Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- BESIII Collaboration
- Grant/Contract Number:
- FG02-05ER41374; SC0010118; SC0010504; SC0012069
- OSTI ID:
- 1506558
- Alternate ID(s):
- OSTI ID: 1609657
- Journal Information:
- Physical Review D, Vol. 99, Issue 7; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 7 works
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