[Deeppwg] Abstract for DIS2025

[Samy Polcher Rafael]

Dear all,

I am planning to submit the following abstract for DIS2025 held in 
March. I would like to present preliminary results on the pDVCS 
asymmetry measurements with RGC data.

Measuring Deeply Virtual Compton Scattering (DVCS) observables offers 
the most direct access to Generalised Parton Distributions (GPDs), which 
offer a 3D description of the quark and gluon distributions in position 
and momentum inside the nucleon. GPDs are essential to understand how 
the nucleon’s global properties, such as its spin and mass, arise from 
quarks and gluons.
The extraction of GPDs requires high precision measurements of multiple 
observables across a broad kinematic range. Measurements in all electron 
and proton spin configurations is also necessary in order to disentangle 
contributions from polarised and unpolarised GPDs.
The CLAS12 experiment at JLab can explore a wide phase space in the 
valence region with high statistics thanks to the upgraded CEBAF 10.5 
GeV polarised electron  beam. CLAS12 has recently taken data for the 
first time with a polarised target able to longitudinally polarise 
nucleons, opening the possibility to measure DVCS observables on 
polarised proton over a new kinematic range.
I will report on preliminary measurements of DVCS target and double spin 
asymmetries from the first longitudinally polarised proton target 
experiment at CLAS12.

Please let me know if you have any comments or feedback.

Best regards,

Samy