TY - JOUR

T1 - Measurement of the e+e− → $$ {K}_S^0{K}_L^0 $$π0 cross sections from $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Adlarson, P.

AU - Ai, X. c.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, M. r.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Balossino, I.

AU - Ban, Y.

AU - Batozskaya, V.

AU - Begzsuren, K.

AU - Berger, N.

AU - Berlowski, M.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Bianco, E.

AU - Bortone, A.

AU - Briere, R. a.

AU - Brueggemann, A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. f.

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

PY - 2024/1/30

Y1 - 2024/1/30

N2 - 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 − → KS0KL0 π 0. The results allow the Born cross sections of the process e + e − → KS0KL0 π 0, as well as its subprocesses e + e − → K ∗(892)0 K¯ 0 and K2∗ (1430)0 K¯ 0 to be measured. The Born cross sections for e + e − → KS0KL0 π 0 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 K¯ 0 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/c 2 and its width as ΓY = (32.4 ± 21.0 ± 1.8) MeV. [Figure not available: see fulltext.]

AB - 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 − → KS0KL0 π 0. The results allow the Born cross sections of the process e + e − → KS0KL0 π 0, as well as its subprocesses e + e − → K ∗(892)0 K¯ 0 and K2∗ (1430)0 K¯ 0 to be measured. The Born cross sections for e + e − → KS0KL0 π 0 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 K¯ 0 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/c 2 and its width as ΓY = (32.4 ± 21.0 ± 1.8) MeV. [Figure not available: see fulltext.]

U2 - 10.1007/JHEP01(2024)180

DO - 10.1007/JHEP01(2024)180

M3 - Article

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 1

M1 - 180

ER -