[Theory-seminars] CNF Seminar on Monday - Gabriel Santiago

[Caroline Silva Rocha Costa]

Dear all,

In addition to our regular seminar on Monday, November 20th, the CNF will be holding a seminar at 11:00AM in Cebaf Center L102. Please, see the announcement from the CNF seminar committee below.


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Dear Colleagues,


Please join us for the Center for Nuclear Femtography seminar on Monday November 20th, 2023 at 11am. The meeting will be held in room CC L102 for those who can attend in person and on Zoom at the link below.


CNF Seminar


Monday November 20th, 2023 at 11am

Room: CC L102

Zoom link: https://jlab-org.zoomgov.com/j/1601213226?pwd=dUNRdHgvMm45bDZXWWM2Y2JYenlWQT09<https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1601213226-3Fpwd-3DdUNRdHgvMm45bDZXWWM2Y2JYenlWQT09&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=VqTuHdztI1WEJtaX9L67lw&m=S7pzww10omrUHYDlQLo09xVUuJeJKdo8tw5OW2fzo9o2a_IHZCw3XX1ZoRUu26N7&s=2HLt-fvihhgkKW9VguhscE7G00HO0ehZ2cW06KJg6as&e=>

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Speaker: M. Gabriel Santiago (CNF)

Title: Generalized parton distributions through universal

moment parameterization: the gluonic sector with

deeply virtual J/ψ production


Abstract:


We present a further step toward a global extraction of gluon generalized parton distributions (GPDs). In our previous work we performed the first global analysis of quark GPDs by including lattice quantum chromodynamics (QCD) calculations, global fitted forward parton distribution functions (PDFs), form factors (FFs), and Deeply Virtual Compton Scattering (DVCS) measurements from JLab and Hadron-Electron Ring Accelerator (HERA) to constrain two quark flavors with leading order QCD evolution. There, the inclusion of DVCS did not probe gluon structure at leading order, as the gluon GPDs only enter through evolution. In this talk we discuss the inclusion of HERA measurements of Deeply Virtual Meson Production (DVMP) in order to study gluon GPDs at non-zero skewness using the same conformal moment parameterization ansatz. We concentrate our study on the production of J/ψ mesons in order to limit quark contributions and thus allow for greater constraints on the gluon GPDs at non-zero skewness.



Sincerely,

The CNF Seminar Committee

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