Электронный каталог

Статья

Ablikim, M.
Measurement of the e*+e*-*>K*0&sub(S)K*0&sub(L)*p*0 Cross Sections from *%s=2.000 to 3.080 GeV / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, A.Sarantsev, A.Zhemchugov, [a.o.] // Journal of High Energy Physics [Electronic resource]. – 2024. – Vol. 2024, No. 1. – P. 180. – URL: https://doi.org/10.1007/JHEP01(2024)180. – Bibliogr.: 60.

Based on e+e− collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector at the BEPCII collider, a partial wave analysis is performed for the process e+e− → K0 S K0 Lπ0. The results allow the Born cross sections of the process e+e− → K0 S K0 Lπ0, as well as its subprocesses e+e− → K∗(892)0 ¯K0 and K∗ 2 (1430)0 ¯K0 to be measured. The Born cross sections for e+e− → K0 S K0 Lπ0 are consistent with previous measurements by BaBar, but with substantially improved precision. The Born cross section lineshape of the process e+e− → K∗(892)0 ¯K0 is consistent with a vector meson state around 2.2 GeV with a significance of 3.2σ. A Breit-Wigner fit determines its mass as MY = (2164.7 ± 9.1 ± 3.1) MeV/c2 and its width as ΓY = (32.4 ± 21.0 ± 1.8) MeV.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 332.7 - Встречные е+е- и мю+мю- пучки