PoS - Proceedings of Science
Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Spin physics in Nuclear Reactions and Nuclei (F. Becattini and o. Hen)
Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic $(\vec e, e'p)$ Electron Scattering from Deuterium
R. Milner* and  for the BLAST Collaboration
Full text: pdf
Pre-published on: August 19, 2019
Published on: August 23, 2019
Abstract
We report the measurement of the beam-vector and tensor asymmetries $A{_{ed}^V}$ and $A{_d^T}$ in quasielastic $(\vec e, e'p)$ 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 have 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.
DOI: https://doi.org/10.22323/1.346.0026
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.