Canonical and kinetic decompositions of the proton spin

Lorcé, C. (2013) Canonical and kinetic decompositions of the proton spin. Il nuovo cimento C, 36 (5). pp. 15-18. ISSN 1826-9885

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Abstract

We propose a short summary of the present situation concerning the proton spin decomposition. We briefly discuss some of the main controversies about the issues of gauge invariance, uniqueness and measurability. As a conclusion, we argue that part of the controversies is actually undecidable.

Item Type: Article
Uncontrolled Keywords: Gauge field theories ; Quantum electrodynamics ; General properties of QCD (dynamics, confinement, etc.) ; Polarization in interactions and scattering
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 06 May 2020 16:03
Last Modified: 06 May 2020 16:03
URI: http://eprints.bice.rm.cnr.it/id/eprint/18309

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