Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic (e→,e'p) Electron Scattering from Deuterium

DeGrush, A.; Maschinot, A.; Akdogan, T.; Alarcon, R.; Bertozzi, W.; Booth, E.; Botto, T.; Calarco, J. R.; Clasie, B.; Crawford, C.; Dow, K.; Farkhondeh, M.; Fatemi, R.; Filoti, O.; Franklin, W.; Gao, H.; Geis, E.; Gilad, S.; Hasell, D. K.; Karpius, P.; Kohl, M.; Kolster, H.; Lee, T.; Matthews, J.; McIlhany, K.; Meitanis, N.; Milner, R.; Rapaport, J.; Redwine, R.; Seely, J.; Shinozaki, A.; Sindile, A.; Širca, S.; Six, E.; Smith, T.; Tonguc, B.; Tschalär, C.; Tsentalovich, E.; Turchinetz, W.; Xiao, Y.; Xu, W.; Zhou, Z. -L.; Ziskin, V.; Zwart, T.

doi:10.1103/PhysRevLett.119.182501

Title: Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic $(\vec{e}, e^{'} p)$ Electron Scattering from Deuterium

Journal Article · Mon Oct 30 00:00:00 EDT 2017 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.119.182501· OSTI ID:1595827

DeGrush, A.; Maschinot, A.; Akdogan, T.; Alarcon, R.; Bertozzi, W.; Booth, E.; Botto, T.; Calarco, J. R.; Clasie, B.; Crawford, C.; Dow, K.; Farkhondeh, M.; Fatemi, R.; Filoti, O.; Franklin, W.; Gao, H.; Geis, E.; Gilad, S.; Hasell, D. K.; Karpius, P. more »

Here, we report the measurement of the beam-vector and tensor asymmetries $A_{e d}^{V}$ 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 $A_{e d}^{V}$ 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 offer a strong constraint on theoretical models.

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Research Organization:: Duke Univ., Durham, NC (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: BLAST Collaboration

Grant/Contract Number:: FG02-03ER41231; FG02-94ER40818

OSTI ID:: 1595827

Alternate ID(s):: OSTI ID: 1405555

Journal Information:: Physical Review Letters, Vol. 119, Issue 18; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 1 work

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
vector asymmetry
tensor asymmetry
electron scattering from deuteron

Title: Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic ( e → , e ' p ) Electron Scattering from Deuterium

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Title: Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic $(\vec{e}, e^{'} p)$ Electron Scattering from Deuterium