S- and p-wave structure of S = −1 meson–baryon scattering in the resonance region
Abstract
Here, we perform a simultaneous analysis of s- and p-waves of the S = –1 meson-baryon scattering amplitude using all low-energy experimental data. For the first time, differential cross section data are included for chiral unitary coupled-channel models. From this model s- and p-wave amplitudes are extracted and both well-known I(JP) = 0(1/2-) s-wave states as well as a new I(JP) = 0(1/2+) state absent in quark models and lattice QCD results. Multiple statistical and phenomenological tests suggest that, while the data clearly require an I = 1 p-wave resonance the new state just accounts for the absence of the decuplet Σ(1385)3/2+ in the model.
- Authors:
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1488348
- Alternate Identifier(s):
- OSTI ID: 1489231
- Report Number(s):
- JLAB-THY-18-2699; DOE/OR/23177-4578; arXiv:1805.04534
Journal ID: ISSN 0370-2693; S0370269318309626; PII: S0370269318309626
- Grant/Contract Number:
- SC0016582; AC05-06OR23177; MA 7156/1; 1415459; PHY-1452055
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 789 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Sadasivan, D., Mai, M., and Döring, M. S- and p-wave structure of S = −1 meson–baryon scattering in the resonance region. Netherlands: N. p., 2019.
Web. doi:10.1016/j.physletb.2018.12.035.
Sadasivan, D., Mai, M., & Döring, M. S- and p-wave structure of S = −1 meson–baryon scattering in the resonance region. Netherlands. https://doi.org/10.1016/j.physletb.2018.12.035
Sadasivan, D., Mai, M., and Döring, M. Fri .
"S- and p-wave structure of S = −1 meson–baryon scattering in the resonance region". Netherlands. https://doi.org/10.1016/j.physletb.2018.12.035.
@article{osti_1488348,
title = {S- and p-wave structure of S = −1 meson–baryon scattering in the resonance region},
author = {Sadasivan, D. and Mai, M. and Döring, M.},
abstractNote = {Here, we perform a simultaneous analysis of s- and p-waves of the S = –1 meson-baryon scattering amplitude using all low-energy experimental data. For the first time, differential cross section data are included for chiral unitary coupled-channel models. From this model s- and p-wave amplitudes are extracted and both well-known I(JP) = 0(1/2-) s-wave states as well as a new I(JP) = 0(1/2+) state absent in quark models and lattice QCD results. Multiple statistical and phenomenological tests suggest that, while the data clearly require an I = 1 p-wave resonance the new state just accounts for the absence of the decuplet Σ(1385)3/2+ in the model.},
doi = {10.1016/j.physletb.2018.12.035},
journal = {Physics Letters B},
number = C,
volume = 789,
place = {Netherlands},
year = {2019},
month = {2}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2018.12.035
https://doi.org/10.1016/j.physletb.2018.12.035
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Cited by: 12 works
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