Journal article

Data driven isospin analysis of timelike octet baryons electromagnetic form factors and charmonium decay into baryon-anti-baryon


Authors listDai, Jian-Ping; Cao, Xu; Lenske, Horst

Publication year2023

JournalPhysics Letters B

Volume number846

ISSN0370-2693

eISSN1873-2445

Open access statusGold

DOI Linkhttps://doi.org/10.1016/j.physletb.2023.138192

PublisherElsevier


Abstract
Inspired by the recent precise data, we perform model-independently an isospin decomposition of the timelike octet baryons electromagnetic form factors. As noted in our previous work, the relative magnitude of isoscalar and isovector component is determined with the input of data on various isospin channels. Herein we further assert that their relative phase can be constraint by the phase difference of oscillatory modulation of effective form factors between isospin channels. The framework is extended to analyze the data of differential cross sections and applied to the form factors of nucleon and hyperons with detail and isospin non-conservation of charmonium decay into baryon-anti-baryon as well. We address that isospin analysis is meaningful when the isospin broken scale is compared to or smaller than the uncertainties of data. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.



Citation Styles

Harvard Citation styleDai, J., Cao, X. and Lenske, H. (2023) Data driven isospin analysis of timelike octet baryons electromagnetic form factors and charmonium decay into baryon-anti-baryon, Physics Letters B, 846, Article 138192. https://doi.org/10.1016/j.physletb.2023.138192

APA Citation styleDai, J., Cao, X., & Lenske, H. (2023). Data driven isospin analysis of timelike octet baryons electromagnetic form factors and charmonium decay into baryon-anti-baryon. Physics Letters B. 846, Article 138192. https://doi.org/10.1016/j.physletb.2023.138192



Keywords


ANNIHILATIONE(+)E(-)NEUTRONP(P)OVER-BARPROTON

Last updated on 2025-10-06 at 11:59