Pion-induced Drell-Yan processes and the flavor-dependent EMC effect

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.042201· OSTI ID:21499548

Dutta, D ^[1]; Peng, J C ^[2]; Cloeet, I C ^[3]; Gaskell, D ^[4]

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1. Department of Physics, Mississippi State University, Mississippi State, Mississippi 39762 (United States)
2. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)
3. Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
4. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23608 (United States)

Pion-induced Drell-Yan processes are proposed as a promising tool with which to measure the flavor dependence of the European Muon Collaboration (EMC) effect, that is, the flavor-dependent modification of quark distributions in the nuclear medium. Existing pionic Drell-Yan data are compared with calculations using a recent model for nuclear quark distributions that incorporates flavor-dependent nuclear effects. While no firm conclusions can yet be drawn, we find that existing Drell-Yan data likely imply a flavor dependence of the EMC effect. We demonstrate that pion-induced Drell-Yan experiments on nuclear targets can access new aspects of the EMC effect not probed in deep inelastic scattering and can therefore provide important new constrains on the nuclear quark distributions. Predictions for possible future pion-induced Drell-Yan experiments are also presented.

• OSTI ID: 21499548
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
COMPOSITE MODELS
DEEP INELASTIC SCATTERING
DISTRIBUTION
DRELL MODEL
ELEMENTARY PARTICLES
EMC EFFECT
FERMIONS
FLAVOR MODEL
FORECASTING
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTONS
MATHEMATICAL MODELS
MESONS
MUONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKS
SCATTERING