https://doi.org/10.1140/epja/i2016-16033-2
Regular Article - Theoretical Physics
Timelike Compton scattering off the neutron and generalized parton distributions
1
Institut de Physique Nucléaire d’Orsay, CNRS-IN2P3, Université Paris-Sud, 91406, Orsay, France
2
Institut für Kernphysik and PRISMA Cluster of Excellence, Johannes Gutenberg Universität, Mainz, Germany
* e-mail: guidal@ipno.in2p3.fr
Received:
24
October
2015
Accepted:
18
January
2016
Published online:
23
February
2016
We study the exclusive photoproduction of an electron-positron pair on a neutron target in the Jefferson Lab energy domain. The reaction consists of two processes: the Bethe-Heitler and the Timelike Compton Scattering. The latter process provides potentially access to the Generalized Parton Distributions (GPDs) of the nucleon. We calculate all the unpolarized, single- and double-spin observables of the reaction and study their sensitivities to GPDs.
© SIF, Springer-Verlag Berlin Heidelberg, 2016