期刊
PHYSICAL REVIEW D
卷 103, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.012005
关键词
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资金
- National Key Basic Research Program of China [2015CB856700]
- National Natural Science Foundation of China (NSFC) [11335008, 11375170, 11475164, 11475169, 11605196, 11605198, 11625523, 11635010, 11705192, 11735014, 11822506, 11835012, 11905236, 11935015, 11935016, 11935018, 11950410506, 11961141012, 12075107, 12035013]
- Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program
- Joint Large-Scale Scientific Facility Funds of the NSFC [U1532102, U1732263, U1832103, U1832207, U2032111]
- CAS [U1532102, U1732263, U1832103, U1832207, U2032111]
- CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]
- 100 Talents Program of CAS
- Institute of Nuclear and Particle Physics, Astronomy and Cosmology (INPAC)
- Shanghai Key Laboratory for Particle Physics and Cosmology
- ERC [758462]
- German Research Foundation DFG [443159800, CRC 1044, FOR 2359]
- Istituto Nazionale di Fisica Nucleare, Italy
- Ministry of Development of Turkey [DPT2006K-120470]
- National Science and Technology fund
- Olle Engkvist Foundation [200-0605]
- STFC (United Kingdom)
- Knut and Alice Wallenberg Foundation (Sweden) [2016.0157]
- Royal Society, UK [DH140054, DH160214]
- Swedish Research Council
- U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-0012069]
No significant threshold effect is observed in the measurement of Born cross sections and effective form factors for the process e⁺e⁻→Ξ¯⁺Ξ⁻.
The Born cross sections and effective form factors for process e(+)e(-) -> Xi(-)(Xi) over bar (+) are measured at eight center-of-mass energies between 2.644 and 3.080 GeV, using a total integrated luminosity of 363.9 pb(-1 )e(+) e(-) collision data collected with the BESIII detector at BEPCII. After performing a fit to the Born cross section of e(+)e(-) -> Xi(-)(Xi) over bar (+), no significant threshold effect is observed.
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