Nucleon Spin Structure with hadronic collisions at COMPASS
Marco Radici, Francesco Conti, Alessandro Bacchetta, Andrea Bianconi
TL;DR
This paper reviews how COMPASS uses hadronic collisions to measure azimuthal asymmetries, enabling the extraction of key spin-dependent parton distribution functions, supported by Monte Carlo simulations of Drell-Yan processes.
Contribution
It introduces a method to explore nucleon spin structure through azimuthal asymmetries in hadronic collisions, with new Monte Carlo simulation results for Drell-Yan production.
Findings
Demonstrated azimuthal asymmetries can reveal transversity, Sivers, and Boer-Mulders functions.
Monte Carlo simulations support feasibility of extracting spin-dependent PDFs.
Highlights COMPASS's capabilities in nucleon spin studies.
Abstract
In order to illustrate the capabilities of COMPASS using a hadronic beam, I review some of the azimuthal asymmetries in hadronic collisions, that allow for the extraction of transversity, Sivers and Boer-Mulders functions, necessary to explore the partonic spin structure of the nucleon. I also report on some Monte Carlo simulations of such asymmetries for the production of Drell-Yan lepton pairs from the collision of high-energy pions on a transversely polarized proton target.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions