Faddeev calculation of the pentaquark {theta}{sup +} in the Nambu-Jona-Lasinio model-based diquark picture
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)
- National Center for Theoretical Sciences, Taipei, Taipei 10617, Taiwan (China)
A Bethe-Salpeter-Faddeev (BSF) calculation is performed for the pentaquark {theta}{sup +} in the diquark picture of Jaffe and Wilczek in which {theta}{sup +} is a diquark-diquark-s three-body system. The Nambu-Jona-Lasinio (NJL) model is used to calculate the lowest order diagrams in the two-body scatterings of sD and DD. With the use of coupling constants determined from the meson sector, we find that sD interaction is attractive in s-wave while the DD interaction is repulsive in the p-wave. With only the lowest three-body channel considered, we do not find a bound (1/2){sup +} pentaquark state. Instead, a bound pentaquark {theta}{sup +} with (1/2){sup -} is obtained with unphysically strong vector mesonic coupling constants.
- OSTI ID:
- 21190009
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Faddeev calculation of pentaquark Theta+ in the Nambu-Jona-Lasinio model-based diquark picture
Nucleon solution of the Faddeev equation in the Nambu--Jona-Lasinio model
Diquarks in the Nambu--Jona-Lasinio model
Journal Article
·
Thu May 01 00:00:00 EDT 2008
· Physical Review C
·
OSTI ID:955890
Nucleon solution of the Faddeev equation in the Nambu--Jona-Lasinio model
Journal Article
·
Mon Feb 28 23:00:00 EST 1994
· Physical Review, C
·
OSTI ID:143418
Diquarks in the Nambu--Jona-Lasinio model
Journal Article
·
Fri Jun 01 00:00:00 EDT 1990
· Physical Review, D (Particles Fields); (USA)
·
OSTI ID:7097515