scholarly journals Low-energy and low-momentum representation of the virtual Compton scattering amplitude

1998 ◽  
Vol 58 (3) ◽  
pp. 1751-1757 ◽  
Author(s):  
D. Drechsel ◽  
G. Knöchlein ◽  
A. Yu. Korchin ◽  
A. Metz ◽  
S. Scherer
Keyword(s):  
Compton Scattering ◽  
Scattering Amplitude ◽  
Virtual Compton Scattering ◽  
Low Energy ◽  
Momentum Representation

scholarly journals Deeply virtual Compton scattering amplitude in the parton model

2000 ◽  
Vol 491 (1-2) ◽  
pp. 96-100 ◽  
Author(s):  
M. Penttinen ◽  
M.V. Polyakov ◽  
A.G. Shuvaev ◽  
M. Strikman
Keyword(s):  
Compton Scattering ◽  
Scattering Amplitude ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Parton Model

PARTONIC PICTURE OF GTMDS

2014 ◽  
Vol 25 ◽  
pp. 1460009 ◽  
Author(s):  
SIMONETTA LIUTI ◽  
ABHA RAJAN ◽  
AURORE COURTOY ◽  
GARY R. GOLDSTEIN ◽  
J. OSVALDO GONZALEZ HERNANDEZ
Keyword(s):  
Angular Momentum ◽  
Compton Scattering ◽  
Orbital Angular Momentum ◽  
Scattering Amplitude ◽  
Final State Interaction ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Matrix Elements ◽  
Final State ◽  
Wigner Distributions

We argue that due to parity constraints, the helicity combination of the purely momentum space counterparts of the Wigner distributions — the generalized transverse momentum distributions — that describes the configuration of an unpolarized quark in a longitudinally polarized nucleon, can enter the deeply virtual Compton scattering amplitude only through matrix elements involving a final state interaction. The relevant matrix elements in turn involve light cone operators projections in the transverse direction, or they appear in the deeply virtual Compton scattering amplitude at twist three. Orbital angular momentum or the spin structure of the nucleon was a major reason for these various distributions and amplitudes to have been introduced. We show that twist three contributions to deeply virtual Compton scattering provide observables related to orbital angular momentum.

scholarly journals Structure analysis of the virtual Compton scattering amplitude at low energies

1998 ◽  
Vol 57 (2) ◽  
pp. 941-952 ◽  
Author(s):  
D. Drechsel ◽  
G. Knöchlein ◽  
A. Yu. Korchin ◽  
A. Metz ◽  
S. Scherer
Keyword(s):  
Compton Scattering ◽  
Structure Analysis ◽  
Scattering Amplitude ◽  
Virtual Compton Scattering ◽  
Low Energies
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