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25th International Workshop on Deep Inelastic Scattering and Related Topics

3–7 Apr 2017
University of Birmingham
Europe/London timezone

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Session

WG6 and WG7 joint session

6 Apr 2017, 11:00
School of Physics and Astronomy (University of Birmingham)

School of Physics and Astronomy

University of Birmingham

Edgbaston Birmingham B15 2TT United Kingdom

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  1. 315. Deuteron spin structure in inclusive and tagged spectator processes in the virtual nucleon approximation
    Wim Cosyn
    06/04/2017, 11:00
    WG6) Spin and 3D Structure

    We discuss a model based on the virtual nucleon approximation used to describe DIS from a polarized deuteron. As the deuteron is a spin 1 hadron, it gives rise to additional observables compared to the spin 1/2 nucleon that provide new opportunities for spin studies.
    For inclusive processes we concentrate on the $A_{zz}$ observable which can be connected to the tensor $b_1$ structure...

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  2. 389. Pi/K structure
    Tanja Horn (Catholic University of America)
    06/04/2017, 11:20
  3. 209. Exploring the Proton Spin with Di-jets at a Future EIC
    Dr Brian Page (Brookhaven National Laboratory )
    06/04/2017, 11:40
    WG7) Future of DIS

    Since the famous results from the EMC collaboration nearly thirty years ago showed that the valence quark contribution to the spin of the proton was consistent with zero, the question of how the proton spin arises from the intrinsic and orbital angular momenta of its constituents has vexed the scientific community. Despite significant experimental (and theoretical) progress, it is clear that...

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  4. 219. Measurement of Gluon Orbital Angular Momentum at EIC
    Yong Zhao (University of Maryland, College Park)
    06/04/2017, 12:00
    WG6) Spin and 3D Structure

    In this talk, I will discuss the experimental observable at the electron-ion collider (EIC) that can be used to identify the gluon orbital angular momentum (OAM) density at arbitrary $x$. We will show that the single longitudinal target-spin asymmetry in exclusive dijet production will be sensitive to the gluon OAM density. The latter contributes to the spin asymmetry with a characteristic...

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  5. 244. Dipole-type gluon TMDs at small x
    Tom van Daal (VU University Amsterdam)
    06/04/2017, 12:20
    WG6) Spin and 3D Structure

    We investigate gluon transverse momentum dependent (TMD) correlators defined as Fourier transforms of nonlocal matrix elements. These correlators include process-dependent gauge links that bridge the nonlocality. The dipole-type correlator has one future- and one past-pointing gauge link and can, in the limit of small x, be related to a correlator of a single Wilson loop. We discuss the...

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  6. 359. MCEG for TMD physics: the quest to characterize perturbative and non perturbative QCD phenomena
    Nobuo Sato (Jefferson Lab)
    06/04/2017, 12:40
    WG7) Future of DIS

    TMD observables are sensitive to both perturbative and nonperturbative
    QCD effects, in particular in kinematic regions associated with low
    transverse momentum. Such observables are described in the CSS formalism
    using field theoretic objects like TMD PDFs and TMD FFs which in turn
    depend on nonperturbative components. In contrast, MCEG uses parton
    shower and hadronization models such as...

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