6533b7cffe1ef96bd1259afc

RESEARCH PRODUCT

Charm and hidden charm scalar mesons in the nuclear medium

Daniel GamermannLaura TolosLaura TolosEulogio OsetRaquel Molina

subject

Nuclear and High Energy PhysicsParticle physicsTrace (linear algebra)Nuclear TheoryMesonNuclear TheoryScalar (mathematics)FOS: Physical sciencesCHIRAL-SYMMETRY RESTORATIONNuclear Theory (nucl-th)RenormalizationUNITARY APPROACHCharm (quantum number)Nuclear ExperimentNN INTERACTIONPhysicsHEAVY MESONSZero (complex analysis)FísicaLOCAL SYMMETRYMULTIQUARK HADRONSNuclear matterGAUGE BOSONPHI-PHOTOPRODUCTIONHigh Energy Physics::ExperimentPI-PI INTERACTIONNucleonVECTOR-MESONS

description

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.

yearjournalcountryeditionlanguage
2009-09-17The European Physical Journal A
https://doi.org/10.1140/epja/i2009-10853-y