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Title: A Future Polarized Drell-Yan Experiment at Fermilab

The topic is treated in a series of slides under the following headings: Motivation (Nucleon Spin Puzzle, Quark Orbital Momentum and the Sivers Function, Accessing Sivers via Polarized Drell-Yan (p+p↑ → μ+μ-)); Transition of Seaquest (E906 → E1039) (Building a Polarized proton Target, Status of Polarized Target); and Outlook. The nucleon spin puzzle: when the quark and gluon contributions to the proton spin are evaluated, nearly 50% of the measured spin is missing; lattice QCD calculations indicate as much as 50% may come from quark orbital angular momentum. Sea quarks should carry orbital angular momentum (O.A.M.). The E1039 Polarized Target Drell-Yan Experiment provides opportunity to study possible Sea Quark O.A.M. Data taking is expected to begin in the spring of 2017.
Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1183950
Report Number(s):
LA-UR--15-24147
TRN: US1600162
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: 12. Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2015), Vail, CO (United States), 19-24 May 2015
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
LDRD
Contributing Orgs:
E906/E1039 Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTON-PROTON INTERACTIONS; QUARKS; FERMILAB; SPIN; POLARIZED TARGETS; ORBITAL ANGULAR MOMENTUM; DRELL MODEL; QUANTUM CHROMODYNAMICS; GLUONS; PROTONS; FUNCTIONS Atomic and Nuclear Physics