2022/04/06 by G. Krintiras, I. Grabowska-Bołd, Krintiras, G. K. +9
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Superconducting Materials and Applications
paper · doi:10.48550/arxiv.2204.02845
openalex publication_date 2022/04/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This note represents an attempt to gather the input related to light-by-light scattering (γγ) cross-section measurements at LHC with the aim of checking the consistency with different standard model predictions. For the first time, we also consider the contribution from the ηb(1S) meson production to the diphoton invariant mass distribution, by calculating its inclusive photoproduction cross-section. Using a simplified set of assumptions, we find a result of 115± 19 nb, consistent with standard model predictions within two standard deviations. Although an improved determination of the integrated fiducial \textrmPbPb (γγ)→ \textrmPb(∗)\textrm+\textrmPb(∗) γγ cross-section by approximately 10% could be potentially achieved relative to current measurements, further improvements are expected with the inclusion of existing or forthcoming LHC nuclear data.