Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the e+e-→KS0K±π 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.
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Titolo: | Precision measurements of the e+e- → KS0 K±π Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV PRECISION MEASUREMENTS of the e+e- → KS0 K±π ... M. ABLIKIM et al |
Autori: | |
Data di pubblicazione: | 2019 |
Rivista: | |
Abstract: | Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we meas...ure the e+e-→KS0K±π 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. |
Handle: | http://hdl.handle.net/11391/1460304 |
Appare nelle tipologie: | 1.1 Articolo in rivista |