The 3D Entangled Structure of the Proton: Transverse Degrees of Freedom in QCD, Momenta, Spins and More

P. J. Mulders

doi:10.1007/s00601-018-1334-6

The 3D Entangled Structure of the Proton: Transverse Degrees of Freedom in QCD, Momenta, Spins and More

P. J. Mulders^*

^*Corresponding author for this work

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Light-front quantized quark and gluon states (partons) play a dominant role in high energy scattering processes. Initial state hadrons are mixed ensembles of partons, while produced pure partonic states appear as mixed ensembles of hadrons. The transition from collinear hard physics to the 3D structure including partonic transverse momenta is related to confinement which links color and spatial degrees of freedom. We outline ideas on emergent symmetries in the Standard Model and their connection to the 3D structure of hadrons. Wilson loops, including those with light-like Wilson lines such as used in the studies of transverse momentum dependent distribution functions may play a crucial role here, establishing a direct link between transverse spatial degrees of freedom and gluonic degrees of freedom.

Original language	English
Article number	10
Pages (from-to)	1-6
Number of pages	6
Journal	Few-Body Systems
Volume	59
Issue number	2
Early online date	5 Feb 2018
DOIs	https://doi.org/10.1007/s00601-018-1334-6
Publication status	Published - Mar 2018

Bibliographical note

[8 pages] Invited talk presented at the Lightcone 2017 Workshop, 18-22 Sep 2017, Mumbai, India

Funding

Acknowledgements I acknowledge useful discussions with several colleagues at Nikhef and with Fabian Springer who worked on symmetry aspects as part of his MSc project. Except for the presentation at the Lightcone 2017 conference (Mumbai), the work was also presented at the INT 17-03 workshop on Hadron Tomography (INT, Seattle). This research is part of the FP7 EU “Ideas” programme QWORK (Contract 320389) of the European Research Council.

Funders	Funder number
FP7 EU
European Research Council
European Commission
Seventh Framework Programme	320389

UN SDGs

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SDG 16 Peace, Justice and Strong Institutions

Keywords

hep-ph

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10.1007/s00601-018-1334-6

https://arxiv.org/abs/1801.03664

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The 3D Entangled Structure of the Proton: Transverse Degrees of Freedom in QCD, Momenta, Spins and More

Abstract

Bibliographical note

Funding

UN SDGs

Keywords

Access to Document

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