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Quark Hadron Duality Workshop: Probing the Transition from Free to Confined Quarks

US/Eastern
James Madison University

James Madison University

800 S Main St, Harrisonburg, VA 22807
Description
The aim of this workshop is to revisit the puzzle of quark-hadron duality at the dawn of the 12 GeV era at Jefferson Lab. In the 6 GeV era, duality has been observed to hold in an unprecedented variety of experiments and observables. While perturbative QCD methods accurately describe experimental results at high energies, and chiral expansion techniques can provide effective parametrizations of low energy data, a wide variety of reactions can be approximated by either single particle (quark) scattering or by exclusive resonance (hadron) interactions. The "duality" transcending these two regimes appears to be an intrinsic, unwavering property of nucleon structure; yet, its dynamical origin remains an unsolved mystery. This workshop will be a forum for experimentalists and theorists to review our existing understanding of duality, present new results and data, and discuss anticipated experiments and new theoretical ideas that can foster future research. The context of the discussion of duality will be from the point of view of the transition from confined to free partons.
    • 1
      Introduction and welcome
      Speaker: Ioana Niculescu (James Madison University)
    • Session I: Duality in Spectroscopy
      Convener: Ian Cloet (Argonne National Laboratory)
    • 2
      Overview of the N* program
      Speaker: Prof. Ralf Gothe (University of South Carolina)
      Slides
    • 3
      Resonant Contribution to Inclusive Electron Scattering from the Experimental Results on Resonance Electrocouplings
      Speaker: Nick Markov (University of Connecticut)
      Slides
    • 4
      Extending the quark/hadron duality to exotic mesons
      Speaker: Dr Vincent Mathieu (JLab)
      Slides
    • 6:00 PM
      Welcome Reception
    • Session II: Introduction and duality overview
      Convener: Alberto Accardi (Hampton U. and Jefferson Lab)
    • 5
      Welcome
      Speaker: Heather Coltman
    • 6
      Experimental Overview of Duality
      Speaker: Cynthia Keppel (Jefferson Lab)
      Slides
    • 7
      Duality in electron scattering: insights from theory
      Speaker: Wally Melnitchouk (Jefferson Lab)
      Slides
    • 8
      Adiabatic Continuity and Spectral Conspiracy in Adjoint QCD: an argument for duality
      Speaker: Mikhail Shifman
    • 10:55 AM
      Coffee Break
    • 9
      Hadron Masses and Factorization
      Speaker: Ted Rogers (ODU/JLab)
      Slides
    • Session III:Duality Perspectives I
      Convener: Nobuo Sato (UConn)
    • 10
      Stress testing target mass corrections in a simple field theory
      Speaker: Eric Moffat
    • 11
      Duality in the neutron structure function
      Speaker: Ioana Niculescu
      Slides
    • 12
      Duality in TDIS
      Speaker: Nilanga Liyanage (University of Virginia)
    • 12:55 PM
      Lunch Break
    • 13
      Duality in the 12 GeV era: first results
      Speaker: Dr Simona Malace (Jefferson Lab)
      Slides
    • Session IV: Duality perspectives I
      Convener: Eric Christy
    • 14
      Duality in the nuclear structure functions
      Speaker: David Gaskell (Jefferson Lab)
      Slides
    • 15
      From the space-time structure of partonic scattering to parton-hadron duality
      Speaker: John Collins
      Slides
    • 3:20 PM
      Coffee Break
    • Session V: Discussion
      Conveners: Cynthia Keppel (Jefferson Lab) , Wally Melnitchouk
      slides
    • Session VI: Duality in Spin Structure Functions
      Convener: Dr Ioana Niculescu (Jefferson Lab)
    • 16
      Spin dependent structure functions
      Speaker: Prof. Karl Slifer (University of New Hampshire)
    • 17
      Duality in the spin-dependent structure function g1p
      Speaker: Victoria Lagerquist (ODU)
    • 18
      JAM PDFs, structure functions at large x
      Speaker: Nobuo Sato (UConn)
      Slides
    • 10:30 AM
      Coffee Break
    • 19
      Parity violating duality
      Speaker: Xiaochao Zhang
      Slides
    • Session VII: Duality Perspectives III
      Convener: Wally Melnitchouk (Jefferson Lab)
    • 20
      Duality as Seen in Basis Light Front Quantization
      Speaker: Prof. James Vary (Iowa State University)
      Slides
    • 12:00 PM
      Lunch Break
    • 21
      Meson Duality
      Speaker: Enrique Ruiz Arriola
    • 22
      SIDIS
      Speaker: Ed Kinney
      Slides
    • Session VIII: Duality in Semi-inclusive
      Convener: David Gaskell (Jefferson Lab)
    • 23
      Duality averaging – the experimental approach
      Speaker: Eric Christy
      Slides
    • 2:30 PM
      Coffee Break
    • 24
      Duality averaging – a theory approach
      Speaker: Prof. simonetta liuti (university of virginia)
      Slides
    • Session IX: Duality at Large x
      Convener: Cynthia Keppel (Jefferson Lab)
    • 25
      CJ PDFs, structure functions at large x
      Speaker: Alberto Accardi (Hampton U. and Jefferson Lab)
      Slides