K+K− photoproduction in ultra-peripheral Pb–Pb collisions

Authors

  • Minjung Kim (for the ALICE Collaboration) Department of Physics, University of California, Berkeley, CA, USA. Center for Frontiers in Nuclear Science, Stony Brook University, Stony Brook, NY, USA

DOI:

https://doi.org/10.17161/4j009971

Keywords:

Photoproduction, UPC, heavy-ion collisions, KK production, ALICE

Abstract

In ultra-peripheral collisions (UPCs) of relativistic heavy ions, photoproduction occurs when a photon emitted from one nucleus interacts with the other nucleus from the opposing beam, producing particles in the final state. Measurements of KK photoproduction probe interactions and couplings between the phi (1020) and charged kaons with photons and nuclear targets. We report the exclusive KK photoproduction cross section at midrapidity in Pb–Pb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, which is measured for the first time in UPCs.

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Published

2025-03-11

Issue

UPC 2023: Proceedings of the International workshop on the physics of Ultra Peripheral Collisions

Section

Articles

License

Copyright (c) 2024 Minjung Kim (for the ALICE Collaboration)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.