Meson coupling constants in a quark model

1967 ◽  
Vol 48 (2) ◽  
pp. 570-572 ◽  
Author(s):  
P. A. Cook
Keyword(s):  
Quark Model ◽  
Coupling Constants ◽  
Meson Coupling

scholarly journals Nucleon–meson coupling constants and form factors in the quark model

2006 ◽  
Vol 638 (5-6) ◽  
pp. 455-460 ◽  
Author(s):  
C. Downum ◽  
T. Barnes ◽  
J.R. Stone ◽  
E.S. Swanson
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Coupling Constants ◽  
Meson Coupling

scholarly journals Constraints on the ω- and σ-meson coupling constants with dibaryons

1997 ◽  
Vol 56 (3) ◽  
pp. 1576-1581 ◽  
Author(s):  
Amand Faessler ◽  
A. J. Buchmann ◽  
M. I. Krivoruchenko
Keyword(s):  
Coupling Constants ◽  
Meson Coupling

DELTA MATTER FORMATION IN DENSE ASYMMETRIC NUCLEAR MEDIUM

2000 ◽  
Vol 15 (24) ◽  
pp. 1529-1537 ◽  
Author(s):  
J. C. T. DE OLIVEIRA ◽  
M. KYOTOKU ◽  
M. CHIAPPARINI ◽  
H. RODRIGUES ◽  
S. B. DUARTE
Keyword(s):  
Nuclear Matter ◽  
Mean Field Theory ◽  
Mean Field ◽  
Symmetric Nuclear Matter ◽  
Coupling Constants ◽  
Nuclear Medium ◽  
Delta Resonance ◽  
Relativistic Mean Field ◽  
Meson Coupling ◽  
Resonance Coupling

In the context of a relativistic mean field theory the delta-resonance matter formation in a highly compressed nuclear medium is investigated. For a given set of nucleon–meson coupling constants, the delta-resonance formation is studied by changing the delta-meson coupling constants. The effect on the equation of state and on the delta-resonance population with respect to changes in the delta-resonance coupling constants values is discussed for very asymmetric and quasi-symmetric nuclear matter, as an extension of works restricted to the symmetric nuclear matter treatment.5,6

scholarly journals Relativistic Quark Model Based Description of Low Energy NN Scattering

1997 ◽  
Vol 12 (07) ◽  
pp. 1385-1404
Author(s):  
R. Antalik ◽  
V. E. Lyubovitskij
Keyword(s):  
Quark Model ◽  
Scalar Meson ◽  
Relativistic Quantum ◽  
Phase Shifts ◽  
Coupling Constants ◽  
Model Fit ◽  
Meson Exchange ◽  
Scattering Phase ◽  
Good Agreement

A model describing the NN scattering phase shifts is developed. Two nucleon interactions induced by meson exchange forces are constructed starting from π, η, η′ pseudoscalar-, the ρ, ϕ, ω vector-, and the ε(600), a0, f0(1400) scalar — meson–nucleon coupling constants, which we obtained within a relativistic quantum field theory based quark model. Working within the Blankenbecler–Sugar–Logunov–Tavkhelidze quasipotential dynamics, we describe the NN phase shifts in a relativistically invariant way. In this procedure we use phenomenological form factor cutoff masses and effective ε and ω meson–nucleon coupling constants, only. Resulting NN phase shifts are in a good agreement with both, the empirical data, and the entirely phenomenological Bonn OBEP model fit. While the quality of our description, evaluated as a ratio of our results to the Bonn OBEP model χ2 ones is about 1.2, other existing (semi)microscopic results gave qualitative results only.

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