Measurement of the cross section of e+e− → ηπ+π− at center-of-mass energies from 3.872 GeV to 4.700 GeV
Journal
Journal of High Energy Physics
Journal Volume
2022
Journal Issue
12
Start Page
153
ISSN
1029-8479
Date Issued
2022-12-27
Author(s)
Abstract
Using data samples with an integrated luminosity of 19 fb−1 at twenty-eight center-of-mass energies from 3.872 GeV to 4.700 GeV collected with the BESIII detector at the BEPCII electron-positron collider, the process e+e− → ηπ+π− and the intermediate process e+e− → ηρ0 are studied for the first time. The Born cross sections are measured. No significant resonance structure is observed in the cross section lineshape. [Figure not available: see fulltext.].
Subjects
Charm Physics
e+-e− Experiments
SDGs
Publisher
Springer Science and Business Media LLC
Type
journal article