Hybrid RBRC seminar

"Generalized Partons Distributions at the time of high precision experiments"

Presented by Cédric Mezrag, CEA Saclay-Irfu/DPhN

Thursday, September 21, 2023, 12:30 pm — Bldg. 510, Room 2-160

Abstract: Introduced more than two decades ago, Generalised Parton Distributions (GPDs) have been deeply studied theoretically as they offer the unique opportunities to i) probe the multidimensional structure of the nucleon in coordinate space, and ii) collect experimental information regarding the energy-momentum tensor of hadrons. Thus, high-precision facilities such as Jefferson Lab present dedicated experimental program on GPDs, and one expects a large amount of experimental data of unmatched precision to be released in the near future. On a longer time scale, we expect the Electron-Ion collider to provide precise data on a wide, unexpored kinematic region. However, extracting GPDs from these data is a challenge. Indeed, the deconvolution problem is much more challenging than in the case of PDFs. I will explain why, and provide some ideas on how to mitigate systematic uncertainties coming from the deconvolution procedure. In the end, we expect that integrated phenomenology software like PARTONS or GeParD will play a key role in the future of GPD phenomenology.

Hosted by: Manu Kurian, Raza Sufian

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