Precision Event Shape Analysis for DIS at HERA and EIC

  • Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars

September 2, 2025 2:00 PM
PAIS 3205

Host:
Huaiyu Duan
Presenter:
June-Haak Ee (LANL)
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 N³LL + O(αₛ²) 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 αₛ and the universal nonperturbative parameter Ω₁. The approach is directly relevant to data from both HERA and the future Electron-Ion Collider (EIC).

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