Global Dyson-Schwinger-Bethe-Salpeter Approach to Mesons with Open Flavour
Institute for High Energy Physics, Austrian Academy of Sciences,
Nikolsdorfergasse 18, A-1050 Vienna,
2 Institute of Physics, University of Graz, NAWI Graz, A-8010 Graz, Austria
3 European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Villa Tambosi, 38123 Villazzano (Trento), Italy
Published online: 14 November 2018
Exploiting an interplay of the Bethe-Salpeter equation enabling us to regard mesons as bound states of quark and antiquark and the Dyson-Schwinger equation controlling the dressed quark propagator, we amend existing studies of quarkonia by a comprehensive description of open-flavour mesons composed of all conceivable combinations of quark flavour. Employing throughout a fixed set of model parameters, we predict some basic characteristics of these mesons, i.e., their masses, leptonic decay constants and corresponding in-hadron condensates entering in a generalized formulation of the Gell-Mann-Oakes-Renner relation.
© The Authors, published by EDP Sciences, 2018
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