[Deeppwg] DNP Abstract by Katheryne

[Marco Contalbrigo]

Dear all,
below is a proposed DNP abstract by Katheryne Price on RGB data.

You are welcome to review the proposed DNP abstract and
send comments or suggestions to me and the author. Given
the short time left, you are encouraged to do it as soon
as possible, in any case by the end of this week.

Deadline for submission to DNP is 1st of July.

Thanks, Marco.


Title:
Measuring Deeply Virtual Compton Scattering on the Neutron with CLAS12 at
Jefferson Lab

Abstract:
A key step towards understanding nucleon structure in terms of generalized
parton distributions (GPDs) is the measurement of deeply virtual Compton
scattering on the neutron (nDVCS). This talk will report on a new
experiment, currently ongoing at Jefferson Lab, utilizing the upgraded 11
GeV CEBAF polarized electron beam, the CLAS12 detector, and a liquid
deuterium target. We aim to measure beam-spin asymmetries for nDVCS
($ed\to e'n\gamma(p)$). The status of the data taking and of the nDVCS
analysis, as well as the performances of the detectors and the quality of
the data will be presented. This beam-spin asymmetry measurement, when
taken with complementary pDVCS measurements, gives us access to quark
total angular momentum and, as quark GPDs are only accessible in linear
combinations within proton and neutron GPDs, measurement of E via nDVCS
will also allow us to perform quark flavor separation of GPDs, resulting
in a more complete GPD picture of nucleon structure.