Journal
PHYSICAL REVIEW LETTERS
Volume 119, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.182501
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Funding
- U.S. Department of Energy Office of Nuclear Physics
- National Science Foundation
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We report the measurement of the beam-vector and tensor asymmetries A(ed)(V) and A(d)(T) in quasielastic ((e) over right arrow, e'p) electrodisintegration of the deuteron at the MIT-Bates Linear Accelerator Center up to missing momentum of 500 MeV/c. Data were collected simultaneously over a momentum transfer range 0.1 < Q(2) < 0.5 (GeV/c)(2) with the Bates Large Acceptance Spectrometer Toroid using an internal deuterium gas target polarized sequentially in both vector and tensor states. The data are compared with calculations. The beam-vector asymmetry A(ed)(V) is found to be directly sensitive to the D-wave component of the deuteron and has a zero crossing at a missing momentum of about 320 MeV/c, as predicted. The tensor asymmetry A(d)(T) at large missing momentum is found to be dominated by the influence of the tensor force in the neutron-proton final-state interaction. The new data provide a strong constraint on theoretical models.
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