A polarized Drell-Yan experiment to probe the dynamics of the nucleon sea

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

DOI:https://doi.org/10.1063/1.4915989· OSTI ID:22391368

Kleinjan, David ^[1]

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1. P-25, Los Alamos National Laboratory Los Alamos, NM 87545 USA [e-mail] (United States)

In QCD, nucleon spin comes from the sum of the quark spin, gluon spin, and the quark and gluon orbital angular momentum, but how these different components contribute and the interplay among them is not yet understood. For instance, sea quark orbital contribution remains largely unexplored. Measurements of the Sivers function for the sea quarks will provide a probe of the sea quark orbital contribution. The upcoming E1039 experiment at Fermilab will measure the Sivers asymmetry of the sea quarks via the Drell-Yan process using a 120 GeV unpolarized proton beam directed a transversely polarized ammonia target. We report on the status and plans of the E1039 polarized Drell-Yan experiment.

• OSTI ID: 22391368
• 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

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMMONIA
DRELL MODEL
FERMILAB
GEV RANGE
GLUONS
NUCLEONS
ORBITAL ANGULAR MOMENTUM
POLARIZED TARGETS
PROTON BEAMS
PROTON REACTIONS
QUANTUM CHROMODYNAMICS
QUARKS
SPIN