[Theory-seminars] Theory Seminar Tomorrow (Hybrid) - Zhiquan Sun

[Caroline Costa]

Hello All,

Tomorrow at 1:00 PM (EST), Zhiquan Sun will give our next hybrid theory seminar of the Fall term. If you will be on-site and are comfortable doing so, please join us in room L102 of CEBAF Center. Otherwise, Zhiquan's seminar will also be provided virtually on our usual ZoomGov link: https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

Please see below for the title and abstract of Zhiquan's talk.

Theory Seminar
Monday, November 7th at 1:00 PM

Zhiquan Sun (MIT)
will discuss "A Better Angle on Hadron Transverse Momentum Distributions at the EIC"

Abstract:
We propose a novel observable $q_∗$, sensitive to transverse momentum dependent distributions (TMDs) in the SIDIS process $e N \to e h X$, with $q_∗/E_N$ defined purely by lab-frame angles. We prove factorization for $\mathrm{d}\sigma_h / \mathrm{d}q_∗$ for $q_∗ \ll Q$ with standard TMD functions, enabling $q_∗$ to substitute for the hadron transverse momentum $P_{hT}$. A double-angle reconstruction method is given which is exact to all orders in QCD for $q_∗ \ll Q$, allowing for angular reconstruction of $Q, x, y$. Resummation and convergence of perturbative QCD predictions for $q_{∗}$ will also be discussed. By replacing measurements of $\mathrm{d}\sigma/\mathrm{d} P_{hT}\mathrm{d} \phi_h$ by $\mathrm{d}\sigma/\mathrm{d} q_*$ the prospects for precisely mapping the 3D structure of hadronization and confinement with TMDs are bright. We show that $q_{∗}$ enables an order-of-magnitude improvement in the expected experimental resolution at the EIC.

Please note the return to standard time beginning this Sunday.

See you tomorrow!
Caroline, Colin & Patrick
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