How large is the gluon polarization in the statistical parton distributions approach?

Journal Article · Fri Apr 10 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4915986· OSTI ID:22391365

Soffer, Jacques ^[1]; Bourrely, Claude ^[2]; Buccella, Franco ^[3]

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1. Physics Department, Temple University, 1835 N, 12 Street, Philadelphia, PA 19122-6082 (United States)
2. Aix-Marseille Université, Département de Physique, Faculté des Sciences, site de Luminy, 13288 Marseille, Cedex 09 (France)
3. INFN, Sezine di Napoli, Via Cintia, Napoli, I-80126 (Italy)

We review the theoretical foundations of the quantum statistical approach to parton distributions and we show that by using some recent experimental results from Deep Inelastic Scattering, we are able to improve the description of the data by means of a new determination of the parton distributions. We will see that a large gluon polarization emerges, giving a significant contribution to the proton spin.

• OSTI ID: 22391365
• Journal Information: AIP Conference Proceedings, Vol. 1654, Issue 1; Conference: DIFFRACTION 2014: International Workshop on Diffraction in High-Energy Physics, Primosten (Croatia), 10-16 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEEP INELASTIC SCATTERING
GLUONS
PARTICLE STRUCTURE
POLARIZATION
PROTONS
QUARKS
REVIEWS
SPIN