Charmed nuclei and exotic charmed meson production at CBM@FAIR and ALICE@LHC

Thanaporn Chimruang; Christoph Herold; Ayut Limphirat; Yupeng Yan; Jan Steinheimer; Benjamin Dönigus; Tom Reichert; Volodymyr Vovchenko; Marcus Bleicher

arXiv · 2602.22676

Charmed nuclei and exotic charmed meson production at CBM@FAIR and ALICE@LHC

Thanaporn Chimruang·Christoph Herold·Ayut Limphirat·Yupeng Yan·Jan Steinheimer·Benjamin Dönigus·Tom Reichert·Volodymyr Vovchenko·Marcus Bleicher

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Abstract

We make predictions for the expected multiplicities of exotic charmed hadrons and charmed nuclei in Au+Au collisions at SIS100 and LHC beam energies, using input on light hadron and charm production from the UrQMD transport model, and applying the Thermal-FIST model. We demonstrate that the CBM experiment has the capability to explore these states with production rates of one per 3 seconds for $\chi_{c0}(1P)$ and $\chi_{c1}(1P)$, and one every 3 minutes for $X(3872)$ at the expected data taking rates. Due to the higher baryon density at CBM compared to the LHC, charmed nuclei, if they exist, will be equally abundant at CBM as at the LHC, even though the total charm production at CBM is much lower.

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Thanaporn Chimruang, Christoph Herold, Ayut Limphirat, Yupeng Yan, Jan Steinheimer, Benjamin Dönigus, Tom Reichert, Volodymyr Vovchenko, Marcus Bleicher. 2026-02-26. Charmed nuclei and exotic charmed meson production at CBM@FAIR and ALICE@LHC. https://arxiv.org/abs/2602.22676

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