31st International Workshop on Deep Inelastic Scattering

Backward DVCS on the pion in Sullivan processes

10 avr. 2024, 14:00

20m

Maison MINATEC, Grenoble, FRANCE

Regular parallel talk WG6: Future Experiments WG6

Orateur

Abigail Castro (CEA)

Description

The purpose of this work is to do a systematic feasibility study of measuring in backward region deeply virtual Compton scattering on the pion in Sullivan processes in the framework of collinear QCD factorization where pion to photon transition distribution amplitudes (TDAs) describes the photon content of the $\pi$ meson. Our approach employs TDAs based on the overlap of light front wave functions, using a previously developed pion light-front wave function and deriving a consistent model for the light front wave functions of the photon. Our results for the TDAs are compared with previous models found in the literature. This work is expected to lead us to an estimate of the cross-sections that could be measured in the future U.S. and China's electron ion colliders, once the computations are completed. It will also provide a comparison with the forward Sullivan DVCS case, for which a strong signal is expected.

Documents de présentation

ACastro_dis_2024.pdf