| Article | |
| Title | Transverse target spin asymmetries in exclusive $\rho^0$ muoproduction |
| Author(s) | Schmidt, Katharina (Freiburg U.) ; Nowak, Wolf-Dieter (Freiburg U.) |
| Collaboration | for the COMPASS Collaboration |
| Publication | 2014 |
| In: | EPJ Web Conf. 73 (2014) 02016 |
| In: | 13th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, Rome, Italy, 30 Sep - 4 Oct 2013, pp.02016 |
| DOI | 10.1051/epjconf/20147302016 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; COMPASS NA58 |
| Abstract | COMPASS has studied exclusive production of 0 mesons using a 160 GeV/ c muon beam and a transversely polarised NH 3 target. Five single-spin and three double-spin azimuthal aymmetries were measured in dependence on Q 2 , x Bj ,or p 2 T . Except the sin S asymmetry, obtained to be − 0.019 ± 0.008( stat .) ± 0.003( syst .), all others were found to be consistent with zero within experimental uncertainties. Phenomenological GPD-based model calculations agree well with the data and interpret the result as evidence for the existence of chiral-odd, transverse generalised parton distribution |
| Copyright/License | publication: © 2014-2024 The Author(s) (License: CC-BY-4.0) |
Corresponding record in: Inspire
Record creato 2015-06-03, modificato l'ultima volta il 2022-08-10