Doubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry

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dc.creatorCohen, Thomas D.
dc.creatorHohler, Paul M.
dc.date2006-06-07
dc.date2006-12-07
dc.date.accessioned2026-07-07T10:41:42Z
dc.date.available2026-07-07T10:41:42Z
dc.descriptionIn the limit of heavy quark masses going to infinity, a symmetry is known to emerge in QCD relating properties of hadrons with two heavy quarks to analogous states with one heavy anti-quark. A key question is whether the charm mass is heavy enough so that this symmetry is manifest in at least an approximate manner. The issue is crucial in attempting to understand the recent reports by the SELEX Collaboration of doubly charmed baryons. We argue on very general grounds that the charm quark mass is substantially too light for the symmetry to emerge automatically via colour coulombic interactions. However, the symmetry could emerge approximately depending on the dynamical details.
dc.description9 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0606084
dc.identifierhttp://arxiv.org/abs/hep-ph/0606084
dc.identifierPhys.Rev.D74:094003,2006
dc.identifierdoi:10.1103/PhysRevD.74.094003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181708
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleDoubly heavy hadrons and the domain of validity of doubly heavy diquark--anti-quark symmetry
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