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arXiv · 2302.13202

New type of hydrogenlike charm-pion or charm-kaon matter

Si-Qiang Luo·Zhan-Wei Liu·Xiang Liu
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Abstract

Borrowing the structures of the hydrogen atom, molecular ion, and diatomic molecule, we predict the nature of a new type of hydrogenlike charm-pion or charm-kaon matter that could be obtained by replacing the proton and electron in hydrogen matter with a charmed meson and a pion or a kaon, respectively. We find that the spectra of the atom, molecular ion, and diatomic molecule can be obtained simultaneously with the Coulomb potential for the hydrogen, the charm-pion, and the charm-kaon systems. The predicted charm-pion matter also allows us to explore the mass shift mediated by the strong interaction. For the charm-pion and charm-kaon systems, the strong interactions could lead to binding energy shifts. Our calculations suggests that the binding energy shifts in charm-pion systems are in the order of several to tens of eV. For the charm-kaon systems, the results are in the order of tens to hundreds of eV. Exploring hydrogenlike charm-pion matter must lead to new demands for high-precision experiments.

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Si-Qiang Luo, Zhan-Wei Liu, Xiang Liu. 2023-03-09. New type of hydrogenlike charm-pion or charm-kaon matter. https://doi.org/10.1103/physrevd.107.054022

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