[Nuclear] Fwd: [EXTERNAL] Higinbotham's DNP Abstract for CLAS12 Letter of Intent

[Lamiaa El-Fassi]

Dear NPWG members,

Sorry for the late notice for a review, but I just got this DNP21 abstract.
Please send any comments you may have before today 5 PM EDT, the submission
deadline, to Douglas Higinbotham, doug at jlab.org.

Best, Lamiaa

---------- Forwarded message ---------
From: Ilieva, Yordanka <ILIEVA at sc.edu>
Date: Thu, Jul 1, 2021 at 1:18 PM
Subject: [EXTERNAL] Higinbotham's DNP Abstract for CLAS12 Letter of Intent
To: elfassi at jlab.org <elfassi at jlab.org>
Cc: Douglas Higinbotham <doug at jlab.org>

Dear Lamiaa,

Could you please forward this abstract to the Nuclear Group for feedback?
The abstract has been officially approved for the PAC submission and Doug
is following the CLAS procedure for abstract submission to conferences.

Thanks and best regards, Yordanka

------------------------------
*From:* Douglas Higinbotham <doug at jlab.org>
*Sent:* Wednesday, June 30, 2021 9:44 PM
*To:* Ilieva, Yordanka <ILIEVA at sc.edu>
*Cc:* Dien Thi Nguyen <dien at mit.edu>; Or Hen <hen at mit.edu>; Širca, Simon <
simon.sirca at fmf.uni-lj.si>
*Subject:* Higinbotham's DNP Abstract for CLAS12 Letter of Intent




Dear Yordanka,



Here is the abstract I am planning to submit on our CLAS12 PAC49 Letter of
Intent.





Title: Exploring fundamental properties of 3He through the polarized 3He(e,e'd)
process in CLAS12



*Abstract*: Spectrometer measurements of the (e,e’p) and (e,e’d)
quasi-elastic processes on polarized 3He have revealed deficiencies in our
understanding of the three-body system.  With the limited kinematic
coverage of these experiments, it has been impossible to disentangle which
aspects of the theoretical description are problematic. While resolving
these problems is interesting from a purely few-body physics point of view,
it is also of critical importance to our interpretation of deep-inelastic
data from polarized 3He which is often used as an effective polarized
neutron target.   A new idea to measure these reactions in CLAS12 with a
new meta-stability exchange optical pumped 3He target.   This new data,
which will cover an extremely board range of kinematics,  should allow
determination of which model ingredients such as non-relativistic approach,
choice of the NN force, relevance of the three-nucleon force, final-state
interactions, and/or meson-exchange currents need to be improved.


Best Wishes,

Douglas for Or, Dien and Simon
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