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Science at the Luminosity Frontier: Jefferson Lab at 22 GeV

9–13 Dec 2024
INFN, Laboratori Nazionali di Frascati
Europe/Rome timezone

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Session

Partonic structure and spin

9 Dec 2024, 14:30
Auditorium B. Touschek (INFN, Laboratori Nazionali di Frascati)

Auditorium B. Touschek

INFN, Laboratori Nazionali di Frascati

Via Enrico Fermi 54 00044 Frascati (Rome)

Conveners

Partonic structure and spin

  • Ioana Niculescu (James Madison University)

Partonic structure and spin

  • Jian-ping Chen (Jefferson Lab)

Partonic structure and spin

  • Nobuo Sato (Jefferson Lab)

Presentation materials

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  1. 29. Study Light Sea in Intermediate-x Region with SIDIS at JLab22 in SoLID and Hall C
    Jian-ping Chen (Jefferson Lab)
    09/12/2024, 14:30

    JLab22 allows precision study of light sea at intermediate-x region. Studies are being performed on SIDIS measurements in Hall C to extract information on unpolarized light sea quark distributions and with SoLID for polarized case.

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  2. 2. The SoLID-SIDIS Program at 22GeV
    Prof. Zhihong Ye (Tsinghua University)
    09/12/2024, 14:55

    The Solenoidal Large Intensity Device (SoLID) is a forward-scattering spectrometer situated in Hall-A at Jefferson Lab. With its large acceptance and full azimuthal angular coverage, SoLID can effectively manage high luminosities ranging from 10^{37} to 10^{39}/cm2/s utilizing both polarized and unpolarized targets. The detector leverages the full capabilities of the JLab 12 GeV upgrade and is...

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  3. 49. Experiment: Parity violating DIS for c-odd pdfs and BSM
    Michael Nycz (University of Virginia)
    09/12/2024, 15:20
  4. 30. Determination of $\alpha_s$ with JLab at 22 GeV
    Alexandre Deur (Jefferson Lab)
    09/12/2024, 16:05

    We will discuss how data from JLab@22GeV, combined with expected low-$x$ measurements from the EIC, can determine the QCD coupling $\alpha_s$ with an accuracy comparable to that of all current world data combined. Furthermore, this approach represents the first extraction of $\alpha_s$ directly sensitive to effects beyond its leading-order evolution, offering a novel test of perturbative QCD...

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  5. 6. Meson and Nucleon Form Factors
    Garth Huber (University of Regina)
    09/12/2024, 16:25

    Meson and Nucleon Form Factors are fundamental hadron structure observables which give much information on QCD's transition from strong to perturbative scales as the probing interaction becomes increasingly hard. The interest in charged pion and kaon form factors is due to their relatively simple qbar-q valence structure and their status as Goldstone bosons of QCD. The measurement of the...

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  6. 22. Meson parton distributions at 22 GeV
    Patrick Barry (Argonne National Lab)
    09/12/2024, 16:50

    To obtain a clearer picture of QCD itself, it is important to study a wide range of structures in various color confined systems. In recent years, we have made considerable progress in understanding the structure of pions, the lightest of all hadrons, through Drell-Yan (DY) and leading neutron (LN) electroproduction data. However, kinematic overlap between these experiments is limited, and...

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  7. 55. Discussion: Partonic structure and spin
    09/12/2024, 17:10
  8. 50. Role of QED effects
    Jianwei Qiu (Jefferson Lab)
    10/12/2024, 09:00
  9. 27. Impact of JLab22 on unpolarized PDFs at large x
    Dr Matteo Cerutti (Christopher Newport U. and Jefferson Lab)
    10/12/2024, 09:25

    We present a first analysis by the CTEQ-JLab (CJ) Collaboration of the potential impact of data from a 22 GeV upgrade of Jefferson Lab on parton distribution functions (PDFs) in the large-momentum fraction (large x) region. Using Monte Carlo pseudodata generated for the kinematic coverage of Hall C, we examine the constraints that these new data could provide on PDFs, Higher-Twist (HT)...

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