SciPost Submission Page

TMD observables in unpolarised Semi-Inclusive DIS at COMPASS

by Andrea Moretti on behalf of the COMPASS Collaboration

Submission summary

As Contributors: Andrea Moretti
Preprint link: scipost_202107_00041v1
Date submitted: 2021-07-21 16:23
Submitted by: Moretti, Andrea
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Experimental


In 2016 and 2017, the COMPASS Collaboration at CERN collected a large sample of DIS events with a longitudinally polarised 160 GeV/$c$ muon beam scattering off a liquid hydrogen target. Part of the collected data has been analysed to extract preliminary results for the amplitudes of the modulations in the azimuthal angle of the charged hadrons and for their transverse-momentum distributions. These observables give relevant information for the study of the transverse momentum and spin structure of the nucleon. Similarly to the results obtained in COMPASS with a deuteron target, the azimuthal asymmetries exhibit interesting kinematic dependences, while the squared-transverse-momentum distributions can be described by two exponentials.

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Submission scipost_202107_00041v1 on 21 July 2021

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