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Keywords = kaonic nuclear states

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57 pages, 2571 KiB  
Review
Heavy–Heavy and Heavy–Light Mesons in Cold Nuclear Matter
by J. J. Cobos-Martínez, Guilherme N. Zeminiani and Kazuo Tsushima
Symmetry 2025, 17(5), 787; https://doi.org/10.3390/sym17050787 - 19 May 2025
Viewed by 573
Abstract
We review the in-medium modifications of effective masses (Lorentz scalar potentials or phenomenon of mass shift) of the heavy–heavy and heavy–light mesons in symmetric nuclear matter and their nuclear bound states. We use a combined approach with the quark–meson coupling (QMC) model and [...] Read more.
We review the in-medium modifications of effective masses (Lorentz scalar potentials or phenomenon of mass shift) of the heavy–heavy and heavy–light mesons in symmetric nuclear matter and their nuclear bound states. We use a combined approach with the quark–meson coupling (QMC) model and an effective Lagrangian. As demonstrated by the cases of pionic and kaonic atoms, studies of the meson–nucleus bound state can provide us with important information on chiral symmetry in a dense nuclear medium. In this review, we examine the mesons, K,K,D,D,B,B,η,η,ϕ,ηc,J/ψ,ηb,Υ, and Bc, where our emphasis is on the heavy mesons. In addition, we also present some new results for the Bc-nucleus bound states. Full article
(This article belongs to the Special Issue Chiral Symmetry, and Restoration in Nuclear Dense Matter)
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8 pages, 252 KiB  
Article
On the Importance of Future, Precise, X-ray Measurements in Kaonic Atoms
by Sławomir Wycech and Kristian Piscicchia
Condens. Matter 2024, 9(1), 4; https://doi.org/10.3390/condmat9010004 - 11 Jan 2024
Cited by 1 | Viewed by 2045
Abstract
Progress in the construction of precise X-ray detectors allows measurements of energies and widths of “upper levels” in K mesic atoms. These can be used to determine sub-threshold Kaon-nucleon amplitudes, which are important in investigations of nuclear states of these mesons. The [...] Read more.
Progress in the construction of precise X-ray detectors allows measurements of energies and widths of “upper levels” in K mesic atoms. These can be used to determine sub-threshold Kaon-nucleon amplitudes, which are important in investigations of nuclear states of these mesons. The special case of the 2P state in Kaonic Helium is discussed and used to check the properties of the K proton quasi-bound state. Similar attempts in other elements indicate a need for new, precise measurements. Full article
(This article belongs to the Special Issue High Precision X-ray Measurements 2023)
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