2018/09/13 by Chun-Sheng An, Ju-Jun Xie, Gang Li
Physics and Astronomy · #Baryon #Cold Atom Physics and Bose-Einstein Condensates #Meson #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Pentaquark #Physics #Quantum Chromodynamics and Particle Interactions #Strangeness #hep-ph
paper · pdf · doi:10.1103/physrevc.98.045201
17 pages, 2 figures
arxiv created 2018/09/13 · openalex created_date 2018/09/27 · openalex publication_date 2018/10/08 · arxiv updated 2018/11/14 · openalex updated_date 2026/08/05
Here we investigate the decay patterns of the low-lying hidden strangeness nucleon resonances (\ensuremath≡N_ss) via the strangeness channels by employing the chiral Lagrangian approach, where the N_ss states are treated as compact pentaquark states. The S-wave decays of these states to the PB (pseudoscalar meson and baryon) and VB (vector meson and baryon) channels are studied. According to the obtained masses and decay properties, we find four states, namely, N_ss(1874) with quantum numbers I(JP)=1/2(1/2^\ensuremath-), N_ss(1885) with I(JP)=1/2(3/2^\ensuremath-), N_ss(2327) with I(JP)=1/2(1/2^\ensuremath-), and N_ss(2252) with I(JP)=1/2(3/2^\ensuremath-), may be associated with the well-established nucleon resonances N*(1895) and N*(1875) and with the resonances N*(2355) and N*(2250) newly predicted by the CLAS Collaboration, respectively. In addition, several other obtained hidden strangeness nucleon resonances may be expected to be dominant components of the predicted missing resonances in the literature.