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14-18 May 2018
Jefferson Lab - CEBAF Center
US/Eastern timezone

Generalized parton distributions in light-front holographic QCD

15 May 2018, 16:10
20m
F113 (Jefferson Lab - CEBAF Center)

F113

Jefferson Lab - CEBAF Center

Speaker

Dr Tianbo Liu (JLab & Duke)

Description

The structure of generalized parton distributions is determined from light-front holographic QCD up to a universal reparametrization function $w(x)$ which incorporates Regge behavior at small $x$ and inclusive counting rules at $x \to 1$. A simple ansatz for $w(x)$ which fulfills these physics constraints with a single-parameter results in precise descriptions of both the nucleon and the pion quark distribution functions in comparison with global fits. The analytic structure of the amplitudes leads to a connection with the Veneziano model and hence to a nontrivial connection with Regge theory and the hadron spectrum.

Primary author

Dr Tianbo Liu (JLab & Duke)

Co-authors

Dr Alexandre Deur (Thomas Jefferson National Accelerator Facility) Prof. Guy de Teramond (Universidad de Costa Rica) Prof. Hans Guenter Dosch (Institut fur Theoretische Physik der Universitat) Dr Raza Sabbir Sufian (JLab) Prof. Stanley Brodsky (SLAC National Accelerator Laboratory, Stanford Univsersity)

Presentation Materials