Document Type
Article
Department/Program
Physics
Journal Title
PHYSICAL REVIEW LETTERS
Pub Date
2014
Volume
113
Issue
23
Abstract
We present a precise measurement of double-polarization asymmetries in the (3)(He) over right arrow((e) over right arrow ,e'd) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in He-3 and the structure of the underlying electromagnetic currents. The measurements have been performed in and around quasielastic kinematics at Q(2) = 0.25(GeV/c)(2) for missing momenta up to 270 MeV/c. The asymmetries are in fair agreement with the state-of-the-art calculations in terms of their functional dependencies on p(m) and omega, but are systematically offset. Beyond the region of the quasielastic peak, the discrepancies become even more pronounced. Thus, our measurements have been able to reveal deficiencies in the most sophisticated calculations of the three-body nuclear system, and indicate that further refinement in the treatment of their two-and/or three-body dynamics is required.
Recommended Citation
Mihovilovic, M.; Sirca, S.; Jin, G.; Averett, Todd; Bradshaw, P.; Katich, J.; Meziane, M.; and Zhao, B., Measurement of Double-Polarization Asymmetries in the Quasielastic (3)(He)over-right-arrow((e)over-right-arrow,e ' d) Process (2014). PHYSICAL REVIEW LETTERS, 113(23).
10.1103/PhysRevLett.113.232505
DOI
10.1103/PhysRevLett.113.232505
