Abstract

Recent theory results on direct production of resonances with positive charge conjugationin electron-positron annihilation are reviewed. The strong modeldependence is emphasized, with predictions varying between 0.03 eV and 0.43 eV for the charmonium state with JPC = 1++ and between0.16 eV and4.25 eV for the state with JPC =2++. For the state with JPC = 0++ the cross section is of O and thus negligeable for all practical purpose. The importance of the relative phase of the production amplitude is emphasized.

Details

Title
Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
Author
Czyż, Henryk; Kühn, Johann H; Tracz, Szymon
Section
Hadronic Cross Section Measurements in e+e− Annihilations
Publication year
2019
Publication date
2019
Publisher
EDP Sciences
ISSN
21016275
e-ISSN
2100014X
Source type
Conference Paper
Language of publication
English
DOI
https://doi.org/10.1051/epjconf/201921802010
ProQuest document ID
2345577154
Copyright
© 2019. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.