Options for the SELEX state D$_{s\J}^+(2632)$

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dc.creatorBarnes, T.
dc.creatorClose, F. E.
dc.creatorDudek, J. J.
dc.creatorGodfrey, S.
dc.creatorSwanson, E. S.
dc.date2004-07-11
dc.date.accessioned2026-07-07T10:29:13Z
dc.date.available2026-07-07T10:29:13Z
dc.descriptionWe consider possible assignments for the D$_{s\J}^+(2632)$, which was recently reported in D$_s^+η$ and D$^0$K$^+$ final states by the SELEX Collaboration at Fermilab. The most plausible quark model assignment for this state is the first radial excitation ($2^3§_1$) of the $c\bar s$ D$_s^*(2112)$, although the predicted mass and strong decay branching fractions for this assignment are not in agreement with the SELEX data. The reported dominance of D$_sη$ over DK appears especially problematic. An intriguing similarity to the K$^*(1414)$ is noted. $2^3§_1$--$^3\D_1$ configuration mixing is also considered, and we find that this effect is unlikely to resolve the branching fraction discrepancy. Other interpretations as a $c\bar s$-hybrid or a two-meson molecule are also considered, but appear unlikely. Thus, if this state is confirmed, it will require reconsideration of the systematics of charmed meson spectroscopy and strong decays.
dc.description6 revtex4 pages, 2 eps figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0407120
dc.identifierhttp://arxiv.org/abs/hep-ph/0407120
dc.identifierPhys.Lett.B600:223-230,2004
dc.identifierdoi:10.1016/j.physletb.2004.08.075
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177723
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleOptions for the SELEX state D$_{s\J}^+(2632)$
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