The coupled-channel analysis of the D and D_s mesons

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dc.creatorSimonov, Yu. A.
dc.creatorTjon, J. A.
dc.date2004-09-30
dc.date.accessioned2026-07-07T10:29:16Z
dc.date.available2026-07-07T10:29:16Z
dc.descriptionThe shift of the p-wave $D_s$ meson mass due to coupling to the DK channel is calculated without fitting parameters using the chiral Lagrangian. As a result the original $Q\bar q$ mass 2.490 MeV generically calculated in the relativistic quark models is shifted down to the experimental value 2317 MeV. With the same Lagrangian the shift of the radial excited $1^-$ level is much smaller, while the total width $Γ> 100$ MeV and the width ratio is in contradiction with the $D^*(2632)$ state observed by SELEX group.
dc.description9 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0409361
dc.identifierhttp://arxiv.org/abs/hep-ph/0409361
dc.identifierPhys.Rev.D70:114013,2004
dc.identifierdoi:10.1103/PhysRevD.70.114013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177743
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Lattice
dc.titleThe coupled-channel analysis of the D and D_s mesons
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