Measurement of the e+e− → $$ {K}_S^0{K}_L^0 $$π0 cross sections from $$ \sqrt{s} $$ = 2.000 to 3.080 GeV
Subatomär fysik
High Energy Physics - Experiment (hep-ex)
Astronomi, astrofysik och kosmologi
e(+)-e(-) Experiments
Particle and Resonance Production
Subatomic Physics
Astronomy, Astrophysics and Cosmology
FOS: Physical sciences
info:eu-repo/classification/ddc/530
530
e(+)-e(-) Experiments; Particle and Resonance Production; Spectroscopy
Spectroscopy
High Energy Physics - Experiment
DOI:
10.1007/jhep01(2024)180
Publication Date:
2024-01-31T13:02:41Z
AUTHORS (629)
ABSTRACT
A bstract Based on e + − collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector BEPCII collider, a partial wave analysis is performed for process → $$ {K}_S^0{K}_L^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:mi>L</mml:mi> </mml:math> π 0 . The results allow Born cross sections of , as well its subprocesses K ∗ (892) \overline{K} <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> and {K}_2^{\ast } <mml:mn>2</mml:mn> <mml:mo>∗</mml:mo> (1430) be measured. are consistent with previous measurements BaBar, but substantially improved precision. section lineshape vector meson state around 2.2 significance 3.2 σ Breit-Wigner fit determines mass M Y = (2164 7 ± 9 1 3 1) MeV /c 2 width Γ (32 4 21 8) MeV.
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