Positive parity pentaquarks in a Goldstone boson exchange model
- 13 October 1998
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 58 (11)
- https://doi.org/10.1103/physrevd.58.111501
Abstract
We study the stability of the pentaquarks uuddQbar, uudsQbar and udssQbar (Q = c, b, or t) of positive parity in a constituent quark model based on Goldstone boson exchange interaction between quarks. The pentaquark parity is the antiquark parity times that of a quark excited to a p-shell. We show that the Goldstone boson exchange interaction favors these pentaquarks much more than the negative parity ones of the same flavour content but all quarks in the ground state. We find that the nonstrange pentaquarks are stable against strong decays.Comment: 13 pages, RevTeKeywords
All Related Versions
This publication has 18 references indexed in Scilit:
- Search for the Pentaquark via theDecayPhysical Review Letters, 1998
- Heavy-flavour pentaquarks in a chiral constituent quark modelPhysics Letters B, 1998
- Pentaquark update after ten yearsNuclear Physics A, 1997
- How to search for pentaquarks in high energy hadronic interactionsThe European Physical Journal A, 1996
- Light baryons in a constituent quark model with chiral dynamicsPhysics Letters B, 1996
- The spectrum of the nucleons and the strange hyperons and chiral dynamicsPhysics Reports, 1996
- Systematics ofsystems with a pure chromomagnetic interactionPhysical Review D, 1989
- The dilambda and the pentaquark in the constituent quark modelPhysics Letters B, 1989
- New possibilities for exotic hadrons — anticharmed strange baryonsPhysics Letters B, 1987
- Possibility of stable multiquark baryonsPhysics Letters B, 1987