scholarly journals TMDs and Azimuthal Spin Asymmetries in a Light-Cone Quark Model

2009 ◽  
Author(s):  
B. Pasquini ◽  
S. Boffi ◽  
A. V. Efremov ◽  
P. Schweitzer ◽  
Donald G. Crabb ◽  
...  
Keyword(s):  
Quark Model ◽  
Light Cone ◽  
Spin Asymmetries

Magnetic moments of the nucleon octet in a relativistic light-cone quark model

1988 ◽  
Vol 200 (4) ◽  
pp. 539-542 ◽  
Author(s):  
Zbigniew Dziembowski ◽  
Tomasz Dzurak ◽  
Adam Szczepaniak ◽  
Lech Mankiewicz
Keyword(s):  
Quark Model ◽  
Light Cone ◽  
Magnetic Moments

scholarly journals Study of kaon structure using the light-cone quark model

2019 ◽  
Vol 100 (7) ◽  
Author(s):  
Satvir Kaur ◽  
Harleen Dahiya
Keyword(s):  
Quark Model ◽  
Light Cone

scholarly journals Tomography of light mesons in the light-cone quark model

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Satvir Kaur ◽  
Narinder Kumar ◽  
Jiangshan Lan ◽  
Chandan Mondal ◽  
Harleen Dahiya
Keyword(s):  
Quark Model ◽  
Light Cone ◽  
Light Mesons

Various Aspects of Divergent Electromagnetic Masses: Analyticity, Scaling, and Light-Cone

1973 ◽  
Vol 51 (8) ◽  
pp. 795-803
Author(s):  
K. Morita
Keyword(s):  
Simple Model ◽  
Quark Model ◽  
Convergence Theorem ◽  
Light Cone ◽  
Property A ◽  
Current Conservation ◽  
Original Analysis ◽  
Commutator Function ◽  
Divergence Problem ◽  
Wrong Sign

Various features associated with the divergent electromagnetic self-mass of a particle are elucidated. Bjorken's original analysis is implemented with a simple convergence theorem which serves as a basis on which various models are discussed regarding their implications on the divergence problem as well as on the scaling property. A simple model of the current commutator function is proposed, on the basis of which it is argued that the quark-model light-cone commutator gives a wrong sign to the divergent self-mass due to its lack of the current conservation. It is also shown that it is the next-to-leading singularities on the light-cone of the commutator that bring forth a (logarithmically) divergent mass shift.

scholarly journals THE SPIN STRUCTURE OF THE NUCLEON IN LIGHT-CONE QUARK MODELS

2009 ◽  
Vol 24 (35n37) ◽  
pp. 2903-2912 ◽  
Author(s):  
B. PASQUINI ◽  
S. BOFFI ◽  
P. SCHWEITZER
Keyword(s):  
Transverse Momentum ◽  
Light Cone ◽  
Parton Distributions ◽  
Transverse Momentum Dependent ◽  
Spin Asymmetries ◽  
Generalized Parton Distributions ◽  
Quark Spin ◽  
Quark Models ◽  
Impact Parameter Space

The quark spin densities related to generalized parton distributions in impact-parameter space and to transverse-momentum dependent parton distributions are reviewed within a light-cone quark model, with focus on the role of the different spin-spin and spin-orbit correlations of quarks. Results for azimuthal spin asymmetries in semi-inclusive deep inelastic scattering due to T -even transverse-momentum dependent parton distributions are also discussed.

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