Work

Light-by-light scattering in ultraperipheral collisions of heavy ions with future FoCal and ALICE 3 detectors

Year: 2025

Type: conference-paper

Abstract: I present possible future studies of light-by-light scattering using FoCal@ALICE and ALICE 3 detectors. Different mechanisms are discussed. The PbPb → PbPb γγ cross section is calculated within the equivalent photon approximation in the impact parameter space. Several differential distributions are presented and discussed. We predict the cross section in the (mb-b) range for typical ALICE 3 cuts, a few orders of magnitude larger than for the current ATLAS or CMS experiments. We also consider the two-π⁰ background, which can, in principle, be eliminated in the new kinematical range for the ALICE 3 measurements by imposing dedicated cuts on diphoton transverse momentum and/or so-called vector asymmetry.

Source: Proceedings of the International Workshop on the Physics of Ultra Peripheral Collisions

DOI: 10.17161/758g5k69

Author: Antoni Szczurek

Institutions: Institute of Nuclear Physics, Polish Academy of Sciences, University of Rzeszów

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4408326547

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