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  • Recent highlights from JAM analyses of unpolarized proton PDFs (click images for enlargement).

  • Recent highlights from JAM analyses of helicity-dependent proton PDFs (click images for enlargement).

  • Zoom for government connection:  https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

    Monday, February 28th, 1:00 PM
    Colin Egerer (JLab)
    Resolving PDFs & GPDs of the Nucleon from Lattice QCD [slides][video]

  • Zoom for government connection:  https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

    Monday, January 24th, 9:00 AM
    De-Liang Yao (Hunan University)
    Dispersive analysis of the form factors in semi-leptonic decays [slides][video]

  • SAM

  • The Jefferson Lab Angular Momentum (JAM) Collaboration is an enterprise involving theorists, experimentalists, and computer scientists from the Jefferson Lab community using QCD to study the internal quark and gluon structure of hadrons and nuclei.

  • JAM has a number of parton distribution function and fragmentation function sets publicly available in LHAPDF format, which can be accessed by downloading the tarball files here.  Please refer to the LHAPDF website for instructions on how to use its interface.

    The following PDF/FF sets are available with the corresponding LHAPDF ID numbers:

    Pion PDFs

  • See below for recent highlights of TMDs in JAM.  Click images for enlargement.

  • EIC Center at Jefferson Lab

    The Electron-Ion Collider Center at Jefferson Lab (EIC2@JLab) is an organization to advance and promote the science program at a future electron-ion collider (EIC) facility. Particular emphasis is on the close connection of EIC science to the current Jefferson Lab 12 GeV CEBAF science program.   

    "EIC Center"At the heart of the atom are protons and neutrons. The characteristics and interactions of neutrons and protons, singly and collectively in the nuclei are responsible for how our cosmos developed and how our sun provides the heat that sustains the eco-system on earth. 

    While we have known for 50 years that protons and neutrons are made of quarks and gluons (represented in the figure to the left as spheres with arrows and springs, respectively), we are just beginning to learn how to image the structure and interactions inside protons and neutrons that are at the femto-scale, a million times smaller than the nano-scale of modern micro-electronics.

    Jefferson Lab has been at the forefront of this research; the current 12 GeV CEBAF program at JLab is world-leading in this science. The proposed Electron-Ion Collider will be the ultimate instrument for this new science: nuclear femtography.

     

     

    More detailed information about the Electron-Ion Collider can be found at the following links:

     

    NEWS:

    JLab News: Nuclear Science Advisory Committee Issues Plan for U.S. Nuclear Physics Research

    Featured Video
    Featured video caption
    Charting the Inner Structure of the Proton
    Slider
    Electron Scattering off the Proton Inside the Nucleus
    Electron Scattering off the Proton Inside the Nucleus
    Quarks and Gluons Inside Protons and Neutrons
    Quarks and Gluons Inside Protons and Neutrons

  • Overview

    The Spectator Tagging Project develops the capabilities for high-energy electron scattering experiments with polarized light ions (deuteron 2H, 3He) and detection of spectator nucleons (protons, neutrons) at a future Electron-Ion Collider (EIC). Such experiments address basic questions of nuclear and strong interaction physics: