Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the eþe− → K0SK`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.
Precision measurements of the e+e−→KS0K±π∓ Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV
Cibinetto, G.;Farinelli, R.;Garzia, I.;Mezzadri, G.;Savrié, M.;
2019
Abstract
Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the eþe− → K0SK`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.File in questo prodotto:
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