Maeda, T. and Komada, T. and Yamada, K. and Oda, M. (2024) Understanding the nature of the controversial ρ(1250) meson through the covariant representation of hadrons. Il nuovo cimento C, 47 (4). pp. 1-5. ISSN 1826-9885
|
Text
ncc12879.pdf - Published Version Download (217kB) | Preview |
Abstract
Recent unitary multichannel reanalysis of elastic ππ-scattering data by Hammoud et al. has offered a clear evidence for the existence of five isovector vector mesons with masses below 1.8 GeV, including the controversial ρ(1250). More recently, following their results, we have found further evidence for the existence of some of these states by analyzing the cross-section data for the e+e− → ωπ process. However, some of these states do not fit to results of typical constituent quark models and the PDG suggested assignments. In this work, in order to clarify the “qq¯” assignments for these ρ states and predict the missing states, we examine their squared mass spectra in a framework of the covariant oscillator quark model, where we propose covariant wave functions of those states. We also investigate their couplings to a pion to check the validity of their assignments.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 11 Sep 2024 15:21 |
| Last Modified: | 11 Sep 2024 15:21 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23109 |
Actions (login required)
 |
View Item |
