Production of $\eta_b$ in ultra-peripheral $Pb Pb$ collisions

Bibliographic Details
Title: Production of $\eta_b$ in ultra-peripheral $Pb Pb$ collisions
Authors: Azevedo, C. N., Sobrinho, F. C., Navarra, F. S.
Publication Year: 2024
Collection: High Energy Physics - Phenomenology
Subject Terms: High Energy Physics - Phenomenology
More Details: Very recently, the two-photon decay width of the $\eta_b$ meson was computed with lattice QCD methods. This decay has not yet been measured. The knowledge of this width allows for the calculation of the $\eta_b$ production cross section through photon-photon interactions in ultra-peripheral $PbPb$ collisions. In this work we present this calculation, which is the first application of the lattice result. Since UPCs are gaining an increasing attention of the heavy ion community, we take the opportunity to perform a comprehensive study of the different ways of defining ultra-peripheral collisions and of the different ways to treat the equivalent photon flux.
Comment: 8 pages, 4 figures
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2412.18567
Accession Number: edsarx.2412.18567
Database: arXiv
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