Measurements of unpolarised azimuthal asymmetries at COMPASS - High Energy Physics - ExperimentReport as inadecuate




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Abstract: Azimuthal asymmetries in unpolarized SIDIS can be used to probe thetransverse momentum of the quarks inside the nucleon. Furthermore they giveaccess to the so-far unmeasured Boer-Mulders function. We report on theextraction of these asymmetries from the COMPASS data taken with a 160 GeV-c$\mu ^+$ beam impinging on a deuteron target. This asymmetries have beenextracted separately for positive and negative hadrons, and the results havebeen compared with theoretical predictions.



Author: Giulio Sbrizzai, for the COMPASS Collaboration

Source: https://arxiv.org/



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