2019/01/11 by Jean-Marc Richard, J. -M. Richard, A. Valcarce +1
Physics and Astronomy · #Bar (unit) #Bound state #Cold Atom Physics and Bose-Einstein Condensates #Dissociation (chemistry) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Pentaquark #Physical chemistry #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Quark model #Quarkonium #hep-ph
paper · pdf · doi:10.1016/j.physletb.2019.01.031
published as Phys. Lett. B790, 248-250 (2019) · 4 pages
arxiv created 2019/01/11 · openalex publication_date 2019/01/21 · arxiv updated 2019/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We use a constituent model to analyze the stability of pentaquark Q ¯ q q q q configurations with a heavy antiquark c ¯ or b ¯ , and four light quarks u u d s , d d s u or s s u d . The interplay between chromoelectric and chromomagnetic effects is not favorable, and, as a consequence, no bound state is found below the lowest dissociation threshold.