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The 24th International Spin Symposium

18–22 Oct 2021
Matsue, Shimane Prefecture, Japan
Asia/Tokyo timezone

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Session

Joint TMD - GPD - HELCITY - Future session US timezone

21 Oct 2021, 07:00
Matsue, Shimane Prefecture, Japan

Matsue, Shimane Prefecture, Japan

Matsue City, Shimane Prefecture, Japan

Conveners

Joint TMD - GPD - HELCITY - Future session US timezone: Chair: Tanja Horn

  • Michela Chiosso (University of Torino and INFN)
  • Itaru Nakagawa (RIKEN)
  • Wen-Chen Chang (Institute of Physics, Academia Sinica)
  • Tanja Horn (The Catholic University of America)
  • Maria Zurek (Argonne National Laboratory)
  • Shinsuke Yoshida (South China Normal University)
  • Marie Boer
  • Kenichi Nakano (University of Virginia)
  • Yuji Goto (RIKEN)

Presentation materials

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  1. 87. Global Analysis of SSAs and the Impact of the EIC on Tensor Charge Extractions
    Alexei Prokudin
    21/10/2021, 07:00
    Transverse momentum structure (TMD)
    Parallel Session Presentation

    We perform the first simultaneous QCD global analysis of data from semi-inclusive deep inelastic scattering, Drell-Yan, e+e- annihilation into hadron pairs, and proton-proton collisions. Consequently, we are able to extract a universal set of nonperturbative functions that describes the observed asymmetries in these reactions. The outcome of our analysis indicates single transverse-spin...

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  2. 80. Back-to-back proton-pi+ correlations with CLAS12
    Timothy Hayward (University of Connecticut)
    21/10/2021, 07:18
    Transverse momentum structure (TMD)
    Parallel Session Presentation

    We report preliminary results from the first measurement of a novel beam-spin asymmetry involving the back-to-back production of a target-fragmentation proton and current-fragmentation $\pi^+$. Non-zero $\sin \Delta \phi$ moments for the semi-inclusive deep inelastic scattering process, $ep \rightarrow P \pi^+ X$, where the $\Delta \phi$ is the difference of azimuthal angles between the two...

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  3. 116. Role played by the zero modes in the matching for the twist-3 PDFs
    Shohini Bhattacharya (Temple University)
    21/10/2021, 07:36
    Transverse momentum structure (TMD)
    Parallel Session Presentation

    The quasi-PDF approach has made it possible to extract the light-cone PDFs from lattice QCD. In this approach, one calculates matrix elements of space-like operators for boosted hadrons. Quasi-PDFs can be related to the light-cone PDFs through a perturbatively calculable matching coefficient. We address the matching for the very first time for the twist-3 PDFs $g_{T}(x)$ and $h_{L}(x)$. In...

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  4. 117. Lattice results on twist-3 parton distributions
    Aurora Scapellato (Temple University)
    21/10/2021, 07:54
    Transverse momentum structure (TMD)
    Parallel Session Presentation

    Twist-3 distributions are very important quantities for the study of hadron structure, and presently they are poorly known experimentally. In this talk, we present the first-ever results on the proton iso-vector twist-3 PDFs $g_T(x)$ and $h_L(x)$, obtained from lattice QCD. We employ the quasi-PDF approach, which is based on computation of correlation functions between two boosted proton...

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  5. 90. Time-reversal Odd Side of a Jet
    Wai Kin Lai (South China Normal University)
    21/10/2021, 08:12
    Transverse momentum structure (TMD)
    Parallel Session Presentation

    We re-examine the jet probes of the nucleon spin and flavor structures. We find for the first time
    that the time-reversal odd (T-odd) component of a jet, conventionally thought to vanish, can survive
    due to the nonperturbative fragmentation and hadronization effects. This additional contribution
    of a jet will lead to novel jet phenomena relevant for unlocking the access to several spin...

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