Relativistic calculation of the width of the {theta}{sup +}(1540) pentaquark
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, Brooklyn College of the City University of New York, Brooklyn, New York 11210 (United States)
We calculate the width of the {theta}{sup +}(1540) pentaquark in a relativistic model in which the pentaquark is considered to be composed of a scalar diquark and a spin 1/2 triquark. We consider both positive and negative parity for the pentaquark. There is a single parameter in our model which we vary and which describes the size of the pentaquark. If the pentaquark size is somewhat smaller than that of the nucleon, we find quite small widths for the pentaquark of about 1 MeV or less. Our model of confinement plays an important role in our analysis and makes it possible to use Feynman diagrams to describe the decay of the pentaquark.
- OSTI ID:
- 20698795
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 71; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Decay width of the pentaquark state {theta}{sup +}(1540) with QCD sum rules
Pentaquark {theta}{sup +}(1540) in the string model
Triquark-diquark models of a theta(1540)
Journal Article
·
Mon Aug 01 00:00:00 EDT 2005
· Physical Review. D, Particles Fields
·
OSTI ID:20711220
Pentaquark {theta}{sup +}(1540) in the string model
Journal Article
·
Fri Dec 31 23:00:00 EST 2004
· Physical Review. D, Particles Fields
·
OSTI ID:20705774
Triquark-diquark models of a theta(1540)
Conference
·
Fri Oct 01 00:00:00 EDT 2004
·
OSTI ID:836062