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Jul 11 – 13, 2025
US/Eastern timezone

Precision Event Shape Analysis for DIS at HERA and EIC

Jul 12, 2025, 1:20 PM
20m

Speaker

June-Haak Ee (Los Alamos National Laboratory)

Description

This talk presents a cutting-edge analysis of the 1-jettiness event shape in deep inelastic scattering (DIS), utilizing Soft-Collinear Effective Theory. The study achieves high precision at N$^3$LL + O($\alpha_s^2$) accuracy, incorporating full fixed-order matching along with nonperturbative corrections. It represents one of the most accurate event-shape predictions in DIS to date and supports precise determinations of the strong coupling constant $\alpha_s$ and the universal nonperturbative parameter $\Omega_1$. The approach is directly relevant to data from both HERA and the future Electron-Ion Collider (EIC).

Authors

June-Haak Ee (Los Alamos National Laboratory) Prof. Daekyoung Kang (Fudan University) Christopher Lee (Los Alamos National Laboratory) Iain Stewart (MIT)

Presentation materials

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