Document Type
Report
Publication Date
2021
Pages
LOI12-21-003 (10 pp.)
Abstract
Recent double-polarization measurements of (e,e'p) and (e,e'd) quasi-elastic processes on ³He have revealed deficiencies in our understanding of three-body system. With the limited kinematic coverage of these low-acceptance spectrometer experiments, it has been impossible to disentangle which aspects of the theoretical description are problematic. While resolving these uncertainties is interesting from a pure 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: as precision has improved over time, small effects like the net proton polarization end up being significant obstacles to a reliable interpretation of the results. This situation leaves us with a collection of model ingredients (non-relativistic vs. relativistic approach, choice of the NN force, relevance of the three-nucleon force, final stage interactions, meson-exchange currents etc.) that must be addressed individually and disentangled in order to identify the deficiencies. In this letter of intent we propose to use the new meta-stability exchange optical pumped ³He target in CLAS12 to provide the necessary wide range of kinematics required.
Rights
© 2021 The Authors.
Included with the kind written permission of the author.
Original Publication Citation
Higinbotham, D. W., Keppel, C., Maxwell, J., Nguyen, D., Tadepalli, A. S., Szumila-Vance, H., Širca, S., Mihovilovič, M., Denniston, A., Hen, O., Kahlbow, J., Milner, R., Pybus, J. R., Segarra, E. P., Fogler, C., Hauenstein, F., Hyde, C., Weinstein, L. B., Johansson, G.,…Schmidt, A. (2021). Exploring fundamental properties of ³He through the ³He(e, e'd) process in CLAS12 (Report No. LOI12-21-003). Thomas Jefferson National Accelerator Facility.
ORCID
0000-0002-1265-2212 (Hauenstein), 0000-0001-7282-8120 (Hyde), 0000-0001-5416-2900 (Weinstein)
Repository Citation
Higinbotham, D. W.; Keppel, C.; Maxwell, J.; Nguyen, D.; Tadepalli, A. S.; Szumila-Vance, H.; Širca, S.; Mihovilovič, M.; Denniston, A.; Hen, O.; Kahlbow, J.; Milner, R.; Pybus, J. R.; Segarra, E. P.; Fogler, C.; Hauenstein, F.; Hyde, C.; Weinstein, L. B.; Johansson, G.; Piasetzky, E.; Beck, A.; Beck, S.; Cohen, E. O.; Korover, I.; Biselli, A.; and Schmidt, A., "Exploring Fundamental Properties of ³He Through the ³He(e, e'd) Process in CLAS12" (2021). Physics Faculty Publications. 934.
https://digitalcommons.odu.edu/physics_fac_pubs/934
Comments
A letter of intent of the CLAS collaboration.
Publisher landing page: https://www.jlab.org/exp_prog/proposals/21prop.html