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Charm and hidden charm scalar mesons in the nuclear medium

AuthorsOset, Eulogi ; Gamermann, Daniel ; Molina, Raquel ; Tolós, Laura
Issue Date17-Sep-2009
CitationEuropean Physical Journal A - Hadrons and Nuclei 42 (1): 31-42 (2009)
AbstractWe study the renormalization of the properties of low-lying charm and hidden charm scalar mesons in a nuclear medium, concretely of the D-s0(2317) and the theoretical hidden charm state X(3700). We find that for the D-s0(2317), with negligible width at zero density, the width becomes about 100 MeV at normal nuclear-matter density, while in the case of the X(3700) the width becomes as large as 200 MeV. We discuss the origin of this new width and trace it to reactions occurring in the nucleus, while offering a guideline for future experiments testing these changes. We also show how those medium modifications will bring valuable information on the nature of the scalar resonances and the mechanisms of the interaction of D mesons with nucleons and nuclei.
Publisher version (URL)http://dx.doi.org/10.1140/epja/i2009-10853-y
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