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. HasellP. 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


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
Issue number25
StatePublished - Dec 13 2011

ASJC Scopus subject areas

  • General Physics and Astronomy


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