The 27-plet baryons with spin 3/2 under SU(3) symmetry

2006/06/01 by Qihua Zhou, Bo-Qiang Ma
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epja/i2006-10063-3

published as Eur.Phys.J.A28:345-349,2006 · 5 pages, 1 figure, to appear in EPJA

openalex publication_date 2006/06/01 · arxiv created 2006/06/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the spin 3/2 baryons in the 27-plet based on flavor SU(3) symmetry. For J^p=3/2⁺, we find all the candidates for non-exotic members. For J^p=3/2^-, we predict a new non-exotic member Λ(1780). Fitting the mass spectrum and calculating the widths of the members show an approximate symmetry of the 27-plet of SU(3). We find that the exotic members have relatively large widths and the Ξ(1950) has spin and parity J^p=3/2^-. The possibility of assigning the non-exotic candidates to an octet is also analyzed.

Citations

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