Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation

Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation

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 e...

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Main Authors: Czyż Henryk, Kühn Johann H., Tracz Szymon
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/23/epjconf_phipsi2017_02010.pdf
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spelling doaj-7bd6f07509d24eec983b6f28cd983d8d2021-08-02T19:19:29ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012180201010.1051/epjconf/201921802010epjconf_phipsi2017_02010Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron AnnihilationCzyż Henryk0Kühn Johann H.1Tracz Szymon2Institute of Physics, University of SilesiaInstitutfür Theoretische Teilchenphysik, KarlsruheInstitute of TechnologyInstitute of Physics, University of SilesiaRecent 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 (me2/Mx2)$ \left( {\mathop m\nolimits_e^2 /\mathop M\nolimits_x^2 } \right) $ and thus negligeable for all practical purpose. The importance of the relative phase of the production amplitude is emphasized.https://www.epj-conferences.org/articles/epjconf/pdf/2019/23/epjconf_phipsi2017_02010.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Czyż Henryk
Kühn Johann H.
Tracz Szymon
spellingShingle Czyż Henryk
Kühn Johann H.
Tracz Szymon
Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
EPJ Web of Conferences
author_facet Czyż Henryk
Kühn Johann H.
Tracz Szymon
author_sort Czyż Henryk
title Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
title_short Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
title_full Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
title_fullStr Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
title_full_unstemmed Direct, Resonant Production of States with Positive Charge Conjugation in Electron-Positron Annihilation
title_sort direct, resonant production of states with positive charge conjugation in electron-positron annihilation
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2019-01-01
description 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 (me2/Mx2)$ \left( {\mathop m\nolimits_e^2 /\mathop M\nolimits_x^2 } \right) $ and thus negligeable for all practical purpose. The importance of the relative phase of the production amplitude is emphasized.
url https://www.epj-conferences.org/articles/epjconf/pdf/2019/23/epjconf_phipsi2017_02010.pdf
work_keys_str_mv AT czyzhenryk directresonantproductionofstateswithpositivechargeconjugationinelectronpositronannihilation
AT kuhnjohannh directresonantproductionofstateswithpositivechargeconjugationinelectronpositronannihilation
AT traczszymon directresonantproductionofstateswithpositivechargeconjugationinelectronpositronannihilation
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