K+-N, K+∗-N channel coupling in a quark potential model

1986 ◽  
Author(s):  
Roy K. Campbell
Keyword(s):  
Potential Model ◽  
Channel Coupling ◽  
Quark Potential

scholarly journals SYSTEMATIC THEORETICAL SEARCH FOR DIBARYONS IN A RELATIVISTIC MODEL

1998 ◽  
Vol 13 (01) ◽  
pp. 59-70 ◽  
Author(s):  
T. GOLDMAN ◽  
K. MALTMAN ◽  
G. J. STEPHENSON ◽  
JIA-LUN PING ◽  
FAN WANG
Keyword(s):  
Symmetry Breaking ◽  
Potential Model ◽  
Systematic Search ◽  
Flavor Symmetry ◽  
Relativistic Model ◽  
Channel Coupling ◽  
Fractional Parentage ◽  
Nonrelativistic Model ◽  
Expansion Technique ◽  
Quark Potential

A relativistic quark potential model is used to do a systematic search for quasi-stable dibaryon states in the u, d and s three-flavor world. Flavor symmetry breaking and channel coupling effects are included and an adiabatic method and fractional parentage expansion technique are used in the calculations. The relativistic model predicts dibaryon candidates completely consistent with the nonrelativistic model.

Color screening effect in the quark potential model

1993 ◽  
Vol 561 (4) ◽  
pp. 595-606 ◽  
Author(s):  
Zhang Zong-Ye ◽  
Yu You-Wen ◽  
Shen Peng-Nian ◽  
Shen Xiao-Yan ◽  
Dong Yu-Bin
Keyword(s):  
Potential Model ◽  
Screening Effect ◽  
Quark Potential

scholarly journals Chiral symmetry in an extended constituent quark potential model

2003 ◽  
Vol 575 (1-2) ◽  
pp. 55-65 ◽  
Author(s):  
Weizhen Deng ◽  
Yanrui Liu ◽  
Xiaolin Chen ◽  
Dahai Lu ◽  
Shi-Lin Zhu
Keyword(s):  
Chiral Symmetry ◽  
Potential Model ◽  
Constituent Quark ◽  
Quark Potential

scholarly journals Quarkonium Production: Velocity-Scaling Rules and Long-Distance Matrix Elements

1997 ◽  
Vol 12 (22) ◽  
pp. 3951-3963 ◽  
Author(s):  
Gerhard A. Schuler
Keyword(s):  
Heavy Quark ◽  
Bound States ◽  
Potential Model ◽  
Distance Matrix ◽  
Bound State ◽  
Matrix Elements ◽  
Long Distance ◽  
Quarkonium Production ◽  
Quark Potential ◽  
Colour Octet

The hierarchy of long-distance matrix elements (MEs) for quarkonium production depends on their scaling with the velocity v of the heavy quark in the bound state. Ranges for the velocities in various bound states and uncertainties of colour-singlet MEs are estimated in a quark-potential model. Different possibilities for the scaling with v of the MEs are discussed; they depend on the actual values of v and the QCD scale. As an application, J/ψ polarization in e+e- annihilation is discussed. The first non-perturbative estimates of colour-octet MEs are presented and compared with phenomenological determinations. Finally, various predictions of prompt quarkonium production at LEP are compared.

scholarly journals I=3/2Kπ scattering in the nonrelativistic quark potential model

1992 ◽  
Vol 46 (11) ◽  
pp. 4868-4872 ◽  
Author(s):  
T. Barnes ◽  
E. S. Swanson ◽  
J. Weinstein
Keyword(s):  
Potential Model ◽  
Quark Potential

K+-nucleon central interaction in a quark potential model

1987 ◽  
Vol 36 (9) ◽  
pp. 2682-2692 ◽  
Author(s):  
R. K. Campbell ◽  
D. Robson
Keyword(s):  
Potential Model ◽  
Central Interaction ◽  
Quark Potential

scholarly journals Relativistic Friedrichs–Lee model and quark-pair creation model

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
Zhi-Yong Zhou ◽  
Zhiguang Xiao
Keyword(s):  
Potential Model ◽  
Scattering Amplitude ◽  
Bound State ◽  
Pair Creation ◽  
The Other ◽  
Hadron Spectrum ◽  
Lee Model ◽  
Continuum States ◽  
Quark Potential ◽  
The Continuum

AbstractIn this paper, we present how the Friedrichs–Lee model could be extended to the relativistic scenario and be combined with the relativistic quark pair creation model in a consistent way. This scheme could be applied to study the “unquenched” effect of the meson spectra. As an example, if the lowest $$J^{PC}=0^{++}$$ J PC = 0 + + $$(u\bar{u}+d\bar{d})/\sqrt{2}$$ ( u u ¯ + d d ¯ ) / 2 bound state in the potential model is coupled to the $$\pi \pi $$ π π continuum, two resonance poles could be found from the scattering amplitude for the continuum states. One of them could correspond to the $$f_0(500)/\sigma $$ f 0 ( 500 ) / σ and the other probably $$f_0(1370)$$ f 0 ( 1370 ) . This scheme might shed more light on why extra states could appear in the hadron spectrum other than the prediction of the quark potential model.

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