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

Abstract

Here, we report the measurement of the beam-vector and tensor asymmetries A e d V and A d T in quasielastic ( 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.

Authors:
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Publication Date:
Research Org.:
Duke Univ., Durham, NC (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
[BLAST Collaboration]
OSTI Identifier:
1595827
Alternate Identifier(s):
OSTI ID: 1405555
Grant/Contract Number:  
[FG02-03ER41231; FG02-94ER40818]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
[ Journal Volume: 119; Journal Issue: 18]; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; vector asymmetry; tensor asymmetry; electron scattering from deuteron

Citation Formats

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., and Zwart, T. Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic (e→,e'p) Electron Scattering from Deuterium. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.182501.
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. Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic (e→,e'p) Electron Scattering from Deuterium. United States. doi:10.1103/PhysRevLett.119.182501.
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., and Zwart, T. Mon . "Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic (e→,e'p) Electron Scattering from Deuterium". United States. doi:10.1103/PhysRevLett.119.182501. https://www.osti.gov/servlets/purl/1595827.
@article{osti_1595827,
title = {Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic (e→,e'p) Electron Scattering from Deuterium},
author = {DeGrush, A. and Maschinot, A. and Akdogan, T. and Alarcon, R. and Bertozzi, W. and Booth, E. and Botto, T. and Calarco, J. R. and Clasie, B. and Crawford, C. and Dow, K. and Farkhondeh, M. and Fatemi, R. and Filoti, O. and Franklin, W. and Gao, H. and Geis, E. and Gilad, S. and Hasell, D. K. and Karpius, P. and Kohl, M. and Kolster, H. and Lee, T. and Matthews, J. and McIlhany, K. and Meitanis, N. and Milner, R. and Rapaport, J. and Redwine, R. and Seely, J. and Shinozaki, A. and Sindile, A. and Širca, S. and Six, E. and Smith, T. and Tonguc, B. and Tschalär, C. and Tsentalovich, E. and Turchinetz, W. and Xiao, Y. and Xu, W. and Zhou, Z. -L. and Ziskin, V. and Zwart, T.},
abstractNote = {Here, we report the measurement of the beam-vector and tensor asymmetries AedV and AdT in quasielastic (e→,e'p) electrodisintegration of the deuteron at the MIT-Bates Linear Accelerator Center up to missing momentum of 500MeV/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 AedV 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 320MeV/c, as predicted. The tensor asymmetry AdT 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.},
doi = {10.1103/PhysRevLett.119.182501},
journal = {Physical Review Letters},
number = [18],
volume = [119],
place = {United States},
year = {2017},
month = {10}
}

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