[Deeppwg] [EXTERNAL] Contribution to EUNPC2025

Sebastian Alvarado alvarado-galeano at ijclab.in2p3.fr
Fri Apr 4 14:51:56 EDT 2025


Dear all, 

I would like to submit an abstract to the EUNPC conference. The deadline for abstract submission is April 15th. 
I intend to present my work on DVCS analysis without proton detection in the Nuclear Structure, Spectroscopy and Dynamics session. 
Below you will find the abstract. Please let me know if you have any comment or suggestion. 

thanks in advance. 


best 
Sebastian 

Deeply Virtual Compton Scattering measurements with e\gamma detection @ CLAS12 

Generalized Parton Distributions (GPDs) arise as structure functions in nucleon structure studies. They are crucial for understanding the correlation between the longitudinal momentum and the transverse position of partons inside the nucleon. The Deeply Virtual Compton Scattering (DVCS) is a privileged channel for GPD studies as chiral-even GPDs can be accessed through spin-dependent asymmetries. Although detecting all final state particles is preferred for selecting DVCS events, DVCS identification only requires the detection of only two final state particles given the missing particle reconstructed from conservation laws. In this work, we present new Beam Spin Asymmetry and preliminary cross-section measurements of proton-DVCS in the topology from experimental data taken by the CLAS12 detector at Jefferson Lab. We show that Machine Learning techniques allow a suitable channel selection in the final state, boosting statistics and giving access to a larger phase space than the proton-detected topology. 
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