Dipion and dikaon photoproduction in ultra-peripheral Pb-Pb collisions with ALICE

2023/06/26 by A. Hamdi, Hamdi, Abdennacer
Medicine · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Pediatric Urology and Nephrology Studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2306.14564

openalex publication_date 2023/06/26 · openalex created_date 2023/06/28 · openalex updated_date 2026/07/31

Abstract

High energy photons originating from the electromagnetic field of ultrarelativistic lead nuclei can interact with the other lead ion. These reactions are studied in the ultra-peripheral heavy ion collisions to probe the physics of strong interactions. The analysis of dipion and dikaon photoproduction was carried out using the ALICE 2015 Pb-Pb data at center-of-mass energy √(s)~=~5.02 TeV, and 2017 Xe-Xe data at √(s)~=~5.44 TeV. We present the ρ⁰ meson and direct π⁺π^- measurements, as well as the prospects of studying exclusive K⁺K^- photoproduction, with sensitivity towards higher dikaon invariant mass above the ϕ(1020) threshold.

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