Precise measurement of deuteron tensor analyzing powers with BLAST

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

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We report a precision measurement of the deuteron tensor analyzing powers T 20 and T 21 at the MIT-Bates Linear Accelerator Center. Data were collected simultaneously over a momentum transfer range Q=2.15-4.50fm -1 with the Bates Large Acceptance Spectrometer Toroid using a highly polarized deuterium internal gas target. The data are in excellent agreement with calculations in a framework of effective field theory. The deuteron charge monopole and quadrupole form factors G C and G Q were separated with improved precision, and the location of the first node of G C was confirmed at Q=4.19±0.05fm -1. The new data provide a strong constraint on theoretical models in a momentum transfer range covering the minimum of T 20 and the first node of G C.

Original languageEnglish
Article number252501
JournalPhysical Review Letters
Volume107
Issue number25
DOIs
StatePublished - Dec 13 2011

Funding

FundersFunder number
National Science Foundation Arctic Social Science Program0855584
National Science Foundation Arctic Social Science Program

    ASJC Scopus subject areas

    • General Physics and Astronomy

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