Publication: Evidence for e+e-→γχc1,2 at center-of-mass energies from 4.009 to 4.360 GeV
Date
2015-04
Authors
Tapan, İlhan
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
Using data samples collected at center-of-mass energies of root s=4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a search for the process e(+)e(-)->gamma chi(cJ) (J=0, 1, 2) and find evidence for e(+)e(-)->gamma chi(c1) and e(+)e(-)->gamma chi(c2) with statistical significances of 3.0 sigma and 3.4 sigma, respectively. The Born cross sections sigma(B)(e(+)e(-)->gamma chi(cJ)), as well as their upper limits at the 90% confidence level (C.L.) are determined at each center-of-mass energy.
Description
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Keywords
Physics, Heavy quarkonia, Decays of hadronic, Electron-positron collisions, Hadron production by
Citation
Ablikim, M. vd. (2015). "Evidence for e+e-→γχc1,2 at center-of-mass energies from 4.009 to 4.360 GeV". Chinese Physics C, 39(4).