arXiv:2410.09115·v1·High Energy Physics — Phenomenology

Amplitude-Based IR-Improvement in Precision LHC $/$ FCC Physics

B.F.L. Ward (1)🇺🇸 · S. Jadach (2)🇵🇱 · W. Placzek (3)🇵🇱 · M. Skrzypek (2)🇵🇱 · Z. Was (2)🇵🇱 · S.A. Yost (4) ((1) Baylor University, Waco, TX, USA, (2) Institute of Nuclear Physics, Krakow, PL, (3) Institute of Applied Computer Science, Jagiellonian University, Krakow, PL, (4) The Citadel, Charleston, SC, USA)🇺🇸

PDF arXiv INSPIRE DOI

Abstract

We present recent results based on the IR-improvement of unintegrable singularities in the infrared regime via amplitude-based resummation in $QE D \times QC D \subset S U (2)_{L} \times U_{1} \times S U (3)_{c}$ . In the context of precision LHC $/$ FCC physics, we focus on specific examples, such as the removal of QED contamination in PDFs evolved from data at $Q_{0}^{2} \sim 2 GeV^{2}$ and used in the evaluating precision observables in $pp \to Z + X \to ℓ ℓ ˉ + X^{'}$ , in which we discuss new results and new issues.

Comments: 6 pages, 4 figures, presented by BFLW at ICHEP 2024, Prague, CZ, July 18, 2024. arXiv admin note: substantial text overlap with arXiv:2410.06226

Amplitude-Based IR-Improvement in Precision LHC/FCC Physics

Abstract

Amplitude-Based IR-Improvement in Precision LHC $/$ FCC Physics