| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1850498 | Physics Letters B | 2016 | 7 Pages |
Abstract
We measured the longitudinal double spin asymmetries ALLALL for single hadron muoproduction off protons and deuterons at photon virtuality Q2<1(GeV/c)2 for transverse hadron momenta pTpT in the range 1 GeV/c1 GeV/c to 4 GeV/c4 GeV/c. They were determined using COMPASS data taken with a polarised muon beam of 160 GeV/c160 GeV/c or 200 GeV/c200 GeV/c impinging on polarised 6LiD or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation ΔG inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
C. Adolph, R. Akhunzyanov, M.G. Alexeev, G.D. Alexeev, A. Amoroso, V. Andrieux, V. Anosov, W. Augustyniak, A. Austregesilo, C.D.R. Azevedo, B. Badełek, F. Balestra, J. Barth, R. Beck, Y. Bedfer, J. Bernhard, K. Bicker, E.R. Bielert, R. Birsa,