9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

Measurement of Vector and Tensor Asymmetries in Quasielastic Electron Scattering from Deuterium

10 Sep 2018, 17:00
20m
A8 (Polo degli Adelardi - Via Adelardi, 33)

A8

Polo degli Adelardi - Via Adelardi, 33

Via Adelardi, 33
Parallel Sessions Spin Physics in Nuclear Reactions and Nuclei Spin physics in Nuclear Reactions and Nuclei

Speaker

Prof. Richard Milner (MIT)

Description

The measurement of the beam-vector and tensor asymmetries in quasielastic 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 < Q2 < 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 is found to be directly sensitive to the D-wave component of the deuteron and have a zero-crossing at a missing momentum of about 320 MeV/c, as predicted. The tensor asymmetry A 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.

Primary author

Prof. Richard Milner (MIT)

Presentation Materials