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

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

THE STRONG COUPLING CONSTANTS gDs1D*K AND $g_{D_{s1}D^{*}K_0^{*}}$ IN QCD SUM RULES

2012 ◽  
Vol 27 (05) ◽  
pp. 1250022
Author(s):  
N. GHAHRAMANY ◽  
R. KHOSRAVI ◽  
M. JANBAZI
Keyword(s):  
Quark Model ◽  
Strong Coupling ◽  
Experimental Measurement ◽  
Sum Rules ◽  
Form Factors ◽  
Strong Form ◽  
Coupling Constants ◽  
Qcd Sum Rules

The structure of the Ds1(2460) meson has not yet been exactly known in the quark model. Considering the Ds1 meson as a conventional [Formula: see text] meson, we investigate the strong form factors and coupling constants gDs1D*K and [Formula: see text] in the framework of the three point QCD sum rules. Any future experimental measurement on these form factors as well as coupling constants gDs1D*K and [Formula: see text] and their comparison with the obtained results in the present work can give considerable information about the structure of this meson.

Electromagnetic Form Factors and Static Properties of the Nucleons in a Chiral Symmetric Quark Model

1998 ◽  
Vol 07 (01) ◽  
pp. 69-88 ◽  
Author(s):  
S. N. Jena ◽  
M. R. Behera
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Center Of Mass ◽  
Axial Vector ◽  
Form Factors ◽  
Coupling Constants ◽  
Mass Motion ◽  
Static Properties ◽  
Vector Coupling ◽  
Pseudo Scalar

Nucleon charge and magnetic form factors [Formula: see text] are computed in an independent-quark model with an equally mixed scalar and vector confining potential in square root form taking into account the corrections due to center-of-mass motion and pion-clound effects. The values obtained for the nucleon static properties such as the magnetic moment, charge radius and axial vector coupling constant in the neutron beta decay process agree reasonably with the corresponding experimental data. The pseudo-scalar and pseudo-vector pion-nucleon coupling constants are found to be gNNπ=13.43 and fNNπ=0.282, which are in excellent agreement with the experimental data.

PION-CLOUD EFFECTS ON THE ELECTROMAGNETIC PROPERTIES OF NUCLEONS IN A QUARK MODEL

1992 ◽  
Vol 07 (27) ◽  
pp. 6813-6831 ◽  
Author(s):  
N. BARIK ◽  
S.N. JENA ◽  
D.P. RATH
Keyword(s):  
Quark Model ◽  
Center Of Mass ◽  
Axial Vector ◽  
Form Factors ◽  
Coupling Constants ◽  
Electromagnetic Properties ◽  
Mass Motion ◽  
Pion Cloud ◽  
Vector Coupling ◽  
Pion Nucleon

Incorporating corrections for the center-of-mass motion and pion-cloud effects the nucleon electromagnetic form factors [Formula: see text] are computed in an independent quark model based on the Dirac equation with a confining potential [Formula: see text] The static quantities like magnetic moment μN, charge radius [Formula: see text] and axial vector coupling constant (gA)n→peν of the nucleons computed in this model are in reasonable agreement with the experiment. The pseudoscalar and the pseudovector pion-nucleon coupling constants are obtained as gNNπ=13.52 and fNNπ=0.284, which are in excellent agreement with the experimental data.

scholarly journals Covariant nucleon electromagnetic form factors from the Goldstone-boson-exchange quark model

2001 ◽  
Vol 511 (1) ◽  
pp. 33-39 ◽  
Author(s):  
R.F. Wagenbrunn ◽  
S. Boffi ◽  
W. Klink ◽  
W. Plessas ◽  
M. Radici
Keyword(s):  
Quark Model ◽  
Goldstone Boson ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Boson Exchange

Markov-Yukawa conditions and nucleon form factors in the relativistic quark model

1973 ◽  
Vol 8 (1) ◽  
pp. 11-15 ◽  
Author(s):  
V. F. Dushenko ◽  
A. P. Kobushkin ◽  
Yu. M. Sinjukov
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Relativistic Quark Model ◽  
Nucleon Form Factors

scholarly journals Mesonic tensor form factors with the light front quark model

2001 ◽  
Vol 64 (11) ◽  
Author(s):  
C. Q. Geng ◽  
C. W. Hwang ◽  
C. C. Lih ◽  
W. M. Zhang
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Light Front ◽  
Tensor Form

scholarly journals Electromagnetic form factors and the hypercentral constituent quark model

2007 ◽  
Vol 76 (6) ◽  
Author(s):  
M. De Sanctis ◽  
M. M. Giannini ◽  
E. Santopinto ◽  
A. Vassallo
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Form Factors ◽  
Constituent Quark Model ◽  
Electromagnetic Form Factors
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