Charm and hidden charm scalar mesons in the nuclear medium

Details Charm and hidden charm scalar mesons in the nuclear medium Charm and hidden charm scalar mesons in the nuclear medium

2008-06-23

arxiv.org/abs/0806.3711v2

Eur.Phys.J.A42:31-42,2009

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1140/epja/i2009-10853-y

We 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.

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