Speaker
Description
Studies of strong interactions between hadrons provide a unique opportunity to test Quantum Chromodynamics calculations at nucleon-scale distances. The femtoscopy technique, based on measuring correlations of hadron pairs, is a powerful tool to study interactions involving short-lived particles. While strong interactions among light and strange hadrons have been extensively investigated, corresponding studies for charm hadrons remain scarce. Such measurements can offer critical insights into the formation of exotic charm states or nuclei containing charm quarks.
In this contribution, we present femtoscopic measurements of the strong interaction between charm and light-flavor hadrons. The first ever measurements of correlation functions of protons with $\Lambda_\mathrm{c}^+$ baryons and $\mathrm{D}^+$ mesons in pp collisions at $\sqrt{s} = 13.6$ TeV are presented. Moreover, a new measurement of the proton--$\mathrm{D}^-$ meson correlation function obtained from the analysis of pp collision data collected during LHC Run 3 is discussed. It significantly improves the precision of the previous ALICE result based on Run 2 data, is discussed. These measurements open a new avenue for exploring charm–hadron interactions and their role in the formation of charm-baryon bound states.
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