[Clas12_deepana] Abstract for the APS meeting

[ajhobart]

Dear all,


Attached is a draft of an abstract that I would like to submit to the 
upcoming APS meeting at the
E8 Mini-Symposium: Early Science Results from Jefferson Lab 12 GeV Program.
I will really appreciate your comments and suggestions.

Best regards,

Adam


Measuring Deeply Virtual Compton Scattering off the Neutron with CLAS12 at
Jefferson Lab

Abstract:

A key step towards a better understanding of nucleon structure in terms 
of Generalized
Parton Distributions (GPDs) is the measurement of deeply virtual Compton
scattering off the neutron (nDVCS; $ed\to e'n\gamma(p)$). ,
The experimental measurement of the beam-spin asymmetry (BSA) for this 
process emphasizes
mainly the access to the GPD E, which is so far the least constrained of 
the four leading-twist quark-helicity-conserving GPDs.
The knowledge of E provides information on the quark total angular 
momentum - via the Ji's sum rule - helping completing our picture of 
nucleon structure.
Moreover, the measurement of nDVCS, combined with complementary pDVCS 
measurements, allows the flavor separation of relevant quark GPDs,
accessible as linear combinations of proton and neutron GPDs. This talk 
will report on an experiment carried at Jefferson Lab in 2019,
utilizing the upgraded 10.6 GeV CEBAF polarized electron beam, the 
CLAS12 detector, and a liquid deuterium target.
Details on the data analysis along with preliminary beam-spin 
asymmetries for nDVCS will be presented.