[Deeppwg] [EXTERNAL] DNP abstract: Polarized 3He Target in CLAS12

[Marco Contalbrigo]

Dear all,
below is the abstract about the C12-20-002 experiment program
for spin-dependent electron scattering off a polarized 3He target
in CLAS12, proposed by Dien Thi Nguyen and collaborators.

As the abstract does not plan to present CLAS12 data, it does
not require a formal approval by DPWG. Still for your information
it is ciculated and posted on the docdb page:

https://clas12-docdb.jlab.org/cgi-bin/DocDB/private/DisplayMeeting?sessionid=438

Best regards, Marco.


Title:

A program of Spin-dependent study using electron scattering from a Polarized 3He Target in CLAS12


Abstract:


This talk will present an exciting physics program of spin-dependent study using the CLAS12 spectrometer in Hall B at Jefferson Lab.
The proposal will use a 10.6 GeV electron beam incident on a novel polarized 3He target to do high precision measurements for both
spin-dependent inclusive and semi-inclusive DIS (??, K?) over a large kinematic range: 0.05 < x < 0.7, 1 < Q2 < 9 (GeV/c)2, 0.2 < z < 0.9
and 0 < PT < 1.3 GeV/c. The principal scientific goal of this experiment is to extract the flavor dependence of the quark
polarization, in particular determining their transverse momentum dependence. High precision 5-D (x, z, PT, Q2, ?h) data on the
neutron, in a kinematic region inaccessible and complementary to the EIC, will constrain present theoretical ideas of the spin
structure of the nucleon described by QCD. In combination with measurement on the Deuteron target, this data will also offer an
unprecedented opportunity to study the spin-dependent in-medium hadronization process. 

\footnote{JLab Proposal PR12-20-002 was granted C1 conditional approval and a scientific rating of A-: {\it A Program of
Spin-Dependent Electron Scattering from a Polarized 3He Target in CLAS12}, Co-Spokespeople: H.~Avakian, J.~Maxwell, R.~Milner,
D.~Nguyen}?