COMPASS results on Collins and Sivers asymmetries for charged hadrons
Anna Martin (1) (for the COMPASS Collaboration (1) Trieste University, and INFN)
TL;DR
This paper reports on measurements of Collins and Sivers asymmetries for charged hadrons from the COMPASS experiment, providing insights into transverse spin and momentum effects in deep inelastic scattering.
Contribution
It presents new experimental results on Collins and Sivers asymmetries for charged pions and kaons from the 2010 proton target data, advancing understanding of transverse spin phenomena.
Findings
Measured Collins and Sivers asymmetries for charged pions and kaons.
Provided new data on transverse spin effects at CERN.
Enhanced understanding of nucleon spin structure.
Abstract
The study of transverse spin and transverse momentum effects is an important part of the scientific program of COMPASS, a fixed target experiment at the CERN SPS taking data since 2002. The studies are carried on by measuring the hadrons produced in deep inelastic scattering (DIS) of 160 GeV/c muons off different targets. Among the possible asymmetries in the hadron azimuthal distributions, particularly interesting are the Collins and Sivers asymmetries which the COMPASS Collaboration has measured using transversely polarised deuteron and proton targets. The new results for charged pions and kaons obtained from the 2010 run with a transversely polarised proton target are presented.
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