https://doi.org/10.1051/epjconf/201611201015
Dispersion representation of the D-term form factor in deeply virtual Compton scattering
1 Dipartimento di Fisica, Università degli Studi di Pavia, Pavia, Italy
2 Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Pavia, Italy
a e-mail: barbara.pasquini@unipv.it
Published online: 21 March 2016
We review the dispersion relation formalism for the deeply virtual Compton scattering amplitudes, and derive a dispersive representation of the D-term form factor, using unsubtracted t-channel dispersion relations. Results for the D-term form factor as function of t as well as at t = 0 are shown in comparison with available model predictions and phenomenological parametrizations.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
