scholarly journals Single-particle spin–orbit strengths of the nucleon and hyperons by quark-model

2000 ◽  
Vol 674 (3-4) ◽  
pp. 493-514 ◽  
Author(s):  
Y. Fujiwara ◽  
M. Kohno ◽  
T. Fujita ◽  
C. Nakamoto ◽  
Y. Suzuki
Keyword(s):  
Quark Model ◽  
Single Particle ◽  
Spin Orbit ◽  
Particle Spin

Single-particle spin-orbit potentials of the Λ and Σ hyperons based on the quark-model G-matrix

2000 ◽  
Vol 670 (1-4) ◽  
pp. 319-322 ◽  
Author(s):  
M. Kohno ◽  
Y. Fujiwara ◽  
T. Fujita ◽  
C. Nakamoto ◽  
Y. Suzuki
Keyword(s):  
Quark Model ◽  
Single Particle ◽  
Spin Orbit ◽  
Particle Spin

scholarly journals Single-Particle Spin-Orbit Splittings in Nuclei

1981 ◽  
Vol 66 (1) ◽  
pp. 227-250 ◽  
Author(s):  
K. Ando ◽  
H. Bando
Keyword(s):  
Single Particle ◽  
Spin Orbit ◽  
Particle Spin

On the Exchange Part of the Single-Particle Spin-Orbit Potential Following from the Nucleon-Nucleon Spin-Orbit Interaction

1972 ◽  
Vol 27 (5) ◽  
pp. 863-864
Author(s):  
R Penzel ◽  
W Stocker
Keyword(s):  
Single Particle ◽  
Nucleon Nucleon ◽  
Orbit Interaction ◽  
Nucleon Spin ◽  
Spin Orbit ◽  
Direct Part ◽  
Spin Orbit Interaction ◽  
Particle Spin ◽  
Orbit Potential

Abstract The exchange part of the single-particle spin-orbit potential following from a two-body spin-orbit potential is calculated. Scheerbaum's approximation of setting the exchange part equal to the direct part is investigated

Effect of the spin-orbit potential on the single particle levels in the superheavy region

1979 ◽  
Vol 83 (3-4) ◽  
pp. 279-283 ◽  
Author(s):  
Y. Tanaka ◽  
Y. Oda ◽  
F. Petrovich ◽  
R.K. Sheline
Keyword(s):  
Single Particle ◽  
Spin Orbit ◽  
Orbit Potential

scholarly journals MASS SPECTRUM OF THE JP=1/2- AND 3/2- PENTAQUARK ANTIDECUPLETS IN THE PERTURBATIVE CHIRAL QUARK MODEL

2005 ◽  
Vol 14 (07) ◽  
pp. 995-1015 ◽  
Author(s):  
T. INOUE ◽  
V. E. LYUBOVITSKIJ ◽  
TH. GUTSCHE ◽  
AMAND FAESSLER
Keyword(s):  
Mass Spectrum ◽  
Quark Model ◽  
Single Particle ◽  
Ground State ◽  
Bound State ◽  
Wave Functions ◽  
Chiral Quark Model ◽  
Confining Potential ◽  
Full Mass Spectrum ◽  
Basic Configuration

We study the recently discovered Θ+ baryon in the context of the perturbative chiral quark model. The basic configuration of the Θ+ is a pentaquark bound state, where the single particle wave functions are the ground state solutions of a confining potential. We classify the resulting pentaquark multiplets as the JP=1/2- and 3/2- flavor SU (3) antidecuplet. The full mass spectrum of the multiplets is determined by including the meson and gluon cloud contributions, which induce flavor SU (3) breaking. The resulting 3/2- antidecuplet is about 185 MeV heavier than the 1/2- one, mainly because of the semi-perturbative gluon effects. We assign the observed Θ+ baryon as a member of the 1/2- antidecuplet and discuss in particular its relation to the recent experimental signal for a Ξ-- baryon.

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