scholarly journals Form factors and generalized parton distributions in basis light-front quantization

2016 ◽  
Vol 93 (5) ◽  
Author(s):  
Lekha Adhikari ◽  
Yang Li ◽  
Xingbo Zhao ◽  
Pieter Maris ◽  
James P. Vary ◽  
...  
2018 ◽  
Vol 120 (18) ◽  
Author(s):  
Guy F. de Téramond ◽  
Tianbo Liu ◽  
Raza Sabbir Sufian ◽  
Hans Günter Dosch ◽  
Stanley J. Brodsky ◽  
...  

2014 ◽  
Vol 25 ◽  
pp. 1460036 ◽  
Author(s):  
C. GRANADOS ◽  
C. WEISS

In the light–front description of nucleon structure the electromagnetic form factors are expressed in terms of frame–independent transverse densities of charge and magnetization. Recent work has studied the transverse densities at peripheral distances [Formula: see text], where they are governed by universal chiral dynamics and can be computed in a model–independent manner. Of particular interest is the comparison of the peripheral charge and magnetization densities. We summarize (a) their interpretation as spin–independent and –dependent current matrix elements; (b) the leading–order chiral effective field theory results; (c) their mechanical interpretation in the light–front formulation; (d) the large–Nc limit of QCD and the role of Δ intermediate states; (e) the connection with generalized parton distributions and peripheral high–energy scattering processes.


2013 ◽  
Vol 88 (1) ◽  
Author(s):  
C. Alexandrou ◽  
M. Constantinou ◽  
S. Dinter ◽  
V. Drach ◽  
K. Jansen ◽  
...  

2018 ◽  
Vol 47 ◽  
pp. 1860099
Author(s):  
O. V. Selyugin

The dependence of the hadron interaction on its structure is examined in the framework of the generalized parton distributions (GPDs). The [Formula: see text] dependence of the GPDs is determined by the parton distribution functions (PDFs), which were obtained from the deep inelastic scattering. The analysis of the whole sets of experimental data on the electromagnetic form factors of the proton and neutron with taking into account many forms of PDFs, obtained by the different Collaborations, make it possible to obtain the special momentum transfer dependence of the GPDs. This permits us to obtain the electromagnetic and gravitomagnetic form factors of the nucleons. The impact parameter dependence of the proton and neutron charge and matter densities is examined. The elastic hadron scattering at high energies was analyzed in the framework of the model that takes into account both these form factors (electromagnetic and gravitomagnetic).


Sign in / Sign up

Export Citation Format

Share Document