Measurement of Cross Section for e(+)e(-) -> Xi(-)(Xi)over-bar(+) Near Threshold at BESIII
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Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Lane, J. J. (2021). Measurement of cross section for e+ e−→ Ξ− Ξ¯+ near threshold at BESIII. Physical Review D, 103(1), 012005.Abstract
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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Physical Review DVolume
103Issue
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