2011/11/30 by M. Pavon Valderrama, Manuel Pavón Valderrama, Ju-Jun Xie +1
Physics and Astronomy · #Algorithm #Computer science #Nuclear physics research studies #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.85.017502
published as Phys. Rev. D 85, 017502 (2012) · 5 pages, 3 tables, final version. Published in Phys. Rev. D 85, 017502 (2012)
openalex publication_date 2012/01/11 · arxiv created 2012/01/12 · arxiv updated 2012/01/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Different experiments on hadron spectroscopy have long suspected the existence of several cascade states in the 1900--2000 MeV region. They are usually labeled under the common name of \ensuremathΞ(1950). As we argue here, there are also theoretical reasons supporting the idea of several \ensuremathΞ(1950) resonances. In particular, we propose the existence of three \ensuremathΞ(1950) states: one of these states would be part of a spin-parity (1)/(2)^\ensuremath- decuplet and the other two probably would belong to the (5)/(2)+ and (5)/(2)^\ensuremath- octets. We also identify which decay channels are more appropriate for the detection of each of the previous states.