scholarly journals Chiral quark model analysis of nucleon quark sea isospin asymmetry and spin polarization

1999 ◽  
Vol 7 (3) ◽  
pp. 501-506 ◽  
Author(s):  
T. Ohlsson ◽  
H. Snellman
Keyword(s):  
Quark Model ◽  
Spin Polarization ◽  
Model Analysis ◽  
Chiral Quark Model ◽  
Isospin Asymmetry

scholarly journals sQq¯q¯ ( q=u , d ; Q=c , b ) tetraquarks in the chiral quark model

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
Gang Yang ◽  
Jialun Ping ◽  
Jorge Segovia
Keyword(s):  
Quark Model ◽  
Chiral Quark Model

scholarly journals The Genuine Resonance of Full-Charm Tetraquarks

Universe ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 155
Author(s):  
Xiaoyun Chen
Keyword(s):  
Quark Model ◽  
Bound States ◽  
Expansion Method ◽  
Chiral Quark Model ◽  
Stabilization Method ◽  
Scaling Method ◽  
Resonance States ◽  
Gaussian Expansion Method ◽  
Color Structure ◽  
Quantum Numbers

In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers JPC=0++,1+−,2++ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method. In this calculation, two structures, meson-meson and diquark–antidiquark, as well as their mixing with all possible color-spin configurations, are considered. The results show that no bound states can be formed. However, resonances are possible because of the color structure. The genuine resonances are identified by the stabilization method (real scaling method). Several resonances for the full-charm system are proposed, and some of them are reasonable candidates for the full-charm states recently reported by LHCb.

scholarly journals Structure of pentaquarks Pc+ in the chiral quark model

2017 ◽  
Vol 95 (1) ◽  
Author(s):  
Gang Yang ◽  
Jialun Ping ◽  
Fan Wang
Keyword(s):  
Quark Model ◽  
Chiral Quark Model

scholarly journals Studying ε′/ε in the chiral quark model: γ5-scheme independence and NLO hadronic matrix elements

1995 ◽  
Vol 449 (1-2) ◽  
pp. 197-225 ◽  
Author(s):  
Stefano Bertolini ◽  
Jan O. Eeg ◽  
Marco Fabbrichesi
Keyword(s):  
Quark Model ◽  
Chiral Quark Model ◽  
Matrix Elements

scholarly journals The strangeness magnetic moment of the proton in the chiral quark model

2000 ◽  
Vol 665 (3-4) ◽  
pp. 353-364 ◽  
Author(s):  
L. Hannelius ◽  
D.O. Riska ◽  
L.Ya. Glozman
Keyword(s):  
Quark Model ◽  
Magnetic Moment ◽  
Chiral Quark Model
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