| Article | |
| Title | Transverse target spin asymmetries on a proton target at COMPASS |
| Author(s) | Richter, Andreas (Aachen, Tech. Hochsch.) |
| Collaboration | on behalf of the COMPASS collaboration |
| Publication | 2009 |
| In: | PoS EPS-HEP2009 (2009) pp.080 |
| In: | 2009 Europhysics Conference on High Energy Physics, Krakow, Poland, 16 Jul - 22 Jul 2009, pp.080 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; COMPASS NA58 |
| Abstract | Transversity and transverse momentum-dependent parton distribution functions (TMDs) are been measured in semi-inclusive deep inelastic scattering (SIDIS) by using a transversely polarized target at the COMPASS experiment. COMPASS is a fixed target experiment at the CERN M2 beamline, which provides a 160GeV/c polarized m+ beam. In the years 2002-2004 COMPASS has collected data with a transversely polarized deuteron 6LiD target. In 2007, COMPASS has used for the first time a proton NH3 target. To access transversity COMPASS has used three different quark polarimeters: the Collins effect, responsible for an azimuthal asymmetry in the single hadron distribution, azimuthal target spin asymmetries of charged hadron pairs and the transverse polarisation of L hyperons. Beside this also the Sivers asymmetry arising from the correlation between the transverse nucleon spin and the quark intrinsic transverse momentum was measured. European |
| Copyright/License | CC-BY-NC-SA-3.0 |
Corresponding record in: INSPIRE
ჩანაწერი შექმნილია 2010-08-05, ბოლოს შესწორებულია 2017-11-03
