53rd International Symposium on Multiparticle Dynamics (ISMD 2025)

Anomalous soft photons: Status and perspectives

22 Sept 2025, 09:00

25m

Mon Repos

Talk QCD evolution of dense media and minimum-bias jets QCD evolution of dense media and minimum-bias jets

Speaker

Klaus Reygers (Heidelberg University (DE))

Description

We provide an overview of the soft-photon puzzle, i.e., of the long-standing discrepancy between experimental data and predictions based on Low's soft-photon theorem, also referred to as "anomalous" soft photon production, and we review the current theoretical understanding of soft radiation and soft theorems. We discuss how both topics can be addressed with the planned ALICE 3 detector at the LHC. The talk will be based on arXiv:2406.17959.

Presentation materials

2025-09-22-soft-photons-ISMD-2025.pdf