arXiv:2604.26124·v1·High Energy Physics — Phenomenology

Recent Developments in IR-Improved Amplitude-Based Resummation in Precision High Energy Collider Physics

B.F.L. Ward (1) · S. Jadach (2)(a) · W. Placzek (3) · M. Skrzypek (2) · Z. Was (3) · S. Yost (4) · A. Siodmok (3) ((1) Baylor University, Waco, TX, USA, (2) Institute of Nuclear Physics, Krakow, PL, (3) Jagiellonian University, Krakow, PL, (4) The Citadel, Charleston, SC, USA, (a) deceased)

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Abstract

We present recent developments in precision high energy collider physics based on the IR-improvement of unintegrable singularities in the infrared regime via amplitude-based resummation in $QE D \times QC D \subset S U (2)_{L} \times U_{1} \times S U (3)^{c}$ . We focus on specific applications relevant to precision observables in LHC/FCC, LC, CLIC, CEPC, and CPPC physics, for which we present new results and some new issues.

Comments: 10 pages, 6 figures, presented by B.F.L. Ward at RADCOR2025, Puri, India, 10/5/2025