scholarly journals Gravitational form factors and transverse spin sum rule in a light front quark-diquark model in AdS/QCD

2015 ◽  
Vol 91 (11) ◽  
Author(s):  
Dipankar Chakrabarti ◽  
Chandan Mondal ◽  
Asmita Mukherjee
2017 ◽  
Vol 32 (17) ◽  
pp. 1750097 ◽  
Author(s):  
Negin Sattary Nikkhoo ◽  
Mohammad Reza Shojaei

In this paper, we calculate the proton and neutron unpolarized and transversely polarized densities. We use the light-front wave function (LFWF), which at an initial scale is constrained by the soft-wall anti-de Sitter (AdS) QCD model, for calculating the Dirac and Pauli form factors which transverse densities are in terms of these form factors. Also, we use these form factors for calculating the flavor separated results for the proton and neutron electromagnetic form factors and calculate u and d quark unpolarized and transversely polarized densities. Finally, we compare our results with other previous parametrizations.


2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Dipankar Chakrabarti ◽  
Chandan Mondal ◽  
Asmita Mukherjee ◽  
Sreeraj Nair ◽  
Xingbo Zhao

2016 ◽  
Vol 57 (6) ◽  
pp. 437-442 ◽  
Author(s):  
D. Chakrabarti ◽  
C. Mondal ◽  
A. Mukherjee

2017 ◽  
pp. 67-72
Author(s):  
D. Chakrabarti ◽  
C. Mondal ◽  
A. Mukherjee

2006 ◽  
Vol 21 (04) ◽  
pp. 762-768 ◽  
Author(s):  
Stanley J. Brodsky ◽  
Guy F. de Téramond

Even though quantum chromodynamics is a broken conformal theory, the AdS/CFT correspondence has led to important insights into the properties of QCD. For example, as shown by Polchinski and Strassler, dimensional counting rules for the power-law falloff of hadron scattering amplitudes follow from dual holographic models with conformal behavior at short distances and confinement at large distances. We find that one also obtains a remarkable representation of the entire light-quark meson and baryon spectrum, including all orbital excitations, based on only one mass parameter. We also show how hadron light-front wavefunctions and hadron form factors in both the space-like and time-like regions can be predicted.


2001 ◽  
Vol 64 (11) ◽  
Author(s):  
C. Q. Geng ◽  
C. W. Hwang ◽  
C. C. Lih ◽  
W. M. Zhang

Sign in / Sign up

Export Citation Format

Share Document