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Title: $$\varLambda $$ and $$\varSigma $$ Excitations and the Quark Model

Abstract

Abstract The spectrum of $$\varLambda $$ Λ and $$\varSigma $$ Σ excitations is reviewed taking into account (nearly) all hyperon resonances which were seen in early analyses or in one of the recent partial-wave analyses. The spectrum is compared with the old Isgur–Karl model and the Bonn model. These models allows us to discuss the SU(3) structure of the observed resonances. The SU(3) decomposition is compared with SU(6) relations between the different decay modes. Seven $$\varLambda $$ Λ states are proposed to be classified as SU(3) singlet states. The hyperon spectrum is compared with the spectrum of N and $$\varDelta $$ Δ resonances.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1714396
Grant/Contract Number:  
SC0016582; AC05-06OR23177
Resource Type:
Published Article
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Name: European Physical Journal. A Journal Volume: 56 Journal Issue: 10; Journal ID: ISSN 1434-6001
Publisher:
Springer Science + Business Media
Country of Publication:
Germany
Language:
English

Citation Formats

Klempt, E., Burkert, V., Thoma, U., Tiator, L., Workman, R., and The Baryon@PDG Group. $$\varLambda $$ and $$\varSigma $$ Excitations and the Quark Model. Germany: N. p., 2020. Web. https://doi.org/10.1140/epja/s10050-020-00261-2.
Klempt, E., Burkert, V., Thoma, U., Tiator, L., Workman, R., & The Baryon@PDG Group. $$\varLambda $$ and $$\varSigma $$ Excitations and the Quark Model. Germany. https://doi.org/10.1140/epja/s10050-020-00261-2
Klempt, E., Burkert, V., Thoma, U., Tiator, L., Workman, R., and The Baryon@PDG Group. Tue . "$$\varLambda $$ and $$\varSigma $$ Excitations and the Quark Model". Germany. https://doi.org/10.1140/epja/s10050-020-00261-2.
@article{osti_1714396,
title = {$$\varLambda $$ and $$\varSigma $$ Excitations and the Quark Model},
author = {Klempt, E. and Burkert, V. and Thoma, U. and Tiator, L. and Workman, R. and The Baryon@PDG Group},
abstractNote = {Abstract The spectrum of $$\varLambda $$ Λ and $$\varSigma $$ Σ excitations is reviewed taking into account (nearly) all hyperon resonances which were seen in early analyses or in one of the recent partial-wave analyses. The spectrum is compared with the old Isgur–Karl model and the Bonn model. These models allows us to discuss the SU(3) structure of the observed resonances. The SU(3) decomposition is compared with SU(6) relations between the different decay modes. Seven $$\varLambda $$ Λ states are proposed to be classified as SU(3) singlet states. The hyperon spectrum is compared with the spectrum of N and $$\varDelta $$ Δ resonances.},
doi = {10.1140/epja/s10050-020-00261-2},
journal = {European Physical Journal. A},
number = 10,
volume = 56,
place = {Germany},
year = {2020},
month = {10}
}

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