Calculation of the continuum contribution to hadronic current correlation functions in a chiral quark model with confinement

2001 ◽  
Vol 63 (11) ◽  
Author(s):  
C. M. Shakin ◽  
Huangsheng Wang
Keyword(s):  
Quark Model ◽  
Correlation Functions ◽  
Chiral Quark Model ◽  
Current Correlation ◽  
Continuum Contribution ◽  
The Continuum

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 THE CONTINUUM AND INTERFERENCE EFFECT IN $e^+e^-\to D^0\bar{D}^0$, D+D- Processes

2008 ◽  
Vol 23 (36) ◽  
pp. 3113-3121 ◽  
Author(s):  
MAO-ZHI YANG
Keyword(s):  
Production Process ◽  
Interference Effect ◽  
Virtual Photon ◽  
Resonance Contribution ◽  
Text Production ◽  
Continuum Contribution ◽  
The Continuum

In the e+e- annihilation processes [Formula: see text], D+D- near or above the threshold of [Formula: see text], there are not only the resonance contribution [Formula: see text], D+D-, but also the continuum contribution through virtual photon directly [Formula: see text], D+D-. The amplitudes through virtual photon directly and through resonance can interfere seriously. We consider the continuum and interference effect in the [Formula: see text] production process in e+e- annihilation. We find that the effect is significant near and above the threshold of the [Formula: see text] mesons.

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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