Comparison to DVCS data
Compton Form Factors
of proton and neutron
(with downloads) DVCS asymmetries
ALU, AC and AUT
of proton and neutron
(with downloads) Nuclear GPDs and nuclear
DVCS asymmetries (with downloads)
Back to V.Guzey at PNPI
Compton Form Factors
The so-called Compton Form Factors (CFFs) are defined as convolution of GPDs with the leading-order hard scattering coefficients:
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Dual parameterization predictions for the proton and neutron CFFs
Using the dual parameterization of nucleon GPDs, we calculated the proton
and neutron CFFs for the GPDs H
and E as a function of all three variables
xB, Q2
and t in the following kinematic range, 0.01
< xB < 0.5, 1 < Q2
< 10 GeV2 and 0.005 < |t|
< 1 GeV2, and for a wide range of Ju
and Jd,
-0.6 < Ju < 0.6 and -1
< Jd < 1.
The generated CFFs are given as 3D grids.
Those grids and the interpolating routines in Fortran, which enable the
user to obtain the CFFs at the desired values of xB,
Q2, t,
Ju and Jd
can be downloaded following the links below.
| Proton | Neutron |
| Grid for the proton
CFF H Grids for the proton CFF E Interpolating routine for the proton CFFs H and E |
Grid for the neutron
CFF H Grids for the neutron CFF E Interpolating routine for the neutron CFFs H and E |