Article
Precise measurements of beam spin asymmetries in semi-inclusive π0 production
Physics Letters B
Document Type
Article
Publication Date
1-1-2011
Disciplines
Abstract
We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations.
Published Citation
Aghasyan, M., H. Avakian, P. Rossi, E. De Sanctis, D. Hasch, M. Mirazita, D. Adikaram, Biselli, A. et al. "Precise measurements of beam spin asymmetries in semi-inclusive π0 production." Physics Letters B 704, no. 5 (2011): 397-402. https://doi.org/10.1016/j.physletb.2011.09.044
DOI
10.1016/j.physletb.2011.09.044
Citation Information
M. Aghasyan, H. Avakian, P. Rossi, E. De Sanctis, et al.. "Precise measurements of beam spin asymmetries in semi-inclusive π0 production" Physics Letters B Vol. 704 Iss. 5 (2011) Available at: http://works.bepress.com/angela_biselli/149/
Copyright 2011 The Author(s)
Published by Elsevier B.V. under CC License Attribution 4.0 International (CC BY 4.0)