Doubly heavy hadron production in ultraperipheral collisions

Abstract

The inclusive production of pseudoscalar heavy quarkonia ($\hat{I}{\cdot }_c,\hat{I}{\cdot }_b,B_c$), double heavy baryons $\hat{I}{ž}_{Q{Q}^{\prime }}$ ($Q^{(\prime )}=c,b$ quarks) and tetraquarks $T_{QQ}$ in heavy ion ultraperipheral collisions (UPCs) is studied. Numerical results indicate that the experimental investigation of $\hat{I}{\cdot }_c,\hat{I}{ž}_{cc}$, and $T_{cc}$ is feasible at the upcoming HL-LHC and future FCC. Heavy ion UPCs open another avenue for studying the production of these doubly heavy hadrons.

11 pages, 3 figures, 4 tabels, V2: typos corrected and English improved Proceedings for The 21st International Conference on Hadron Spectroscopy and Structure (HADRON2025), 27-31 March, 2025, Osaka University, Japan