caa a22 4500 445873094 CHVBK 20180317145518.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1140/epja/i2011-11019-2 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11019-2 Light meson mass dependence of the positive-parity heavy-strange mesons [Elektronische Daten] [M. Cleven, F. Guo, C. Hanhart, U. Meißner] Abstract.: We calculate the masses of the resonances $\ensuremath D_{s0}^{\ast}(2317)$ and $\ensuremath D_{s1}(2460)$ as well as their bottom partners as bound states of a kaon and a $\ensuremath D^{(\ast)}$ - and $\ensuremath B^{(\ast)}$ -meson, respectively, in unitarized chiral perturbation theory at next-to-leading order. After fixing the parameters in the $\ensuremath D_{s0}^{\ast}(2317)$ channel, the calculated mass for the $\ensuremath D_{s1}(2460)$ is found in excellent agreement with experiment. The masses for the analogous states with a bottom quark are predicted to be $\ensuremath M_{B^{\ast}_{s0}}=(5696\pm 40)$ MeV and $\ensuremath M_{B_{s1}}=(5742\pm 40)$ MeV in reasonable agreement with previous analyses. In particular, we predict $\ensuremath M_{B_{s1}}{-}M_{B_{s0}^{\ast}}=46\pm 1$ MeV. We also explore the dependence of the states on the pion and kaon masses. We argue that the kaon mass dependence of a kaonic bound state should be almost linear with slope about unity. Such a dependence is specific to the assumed molecular nature of the states. We suggest to extract the kaon mass dependence of these states from lattice QCD calculations. SIF, Springer-Verlag Berlin Heidelberg, 2011 Cleven M. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut Guo F. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut Hanhart C. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut Meißner U. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut The European Physical Journal A Springer-Verlag 47/2(2011-02-01), 1-9 1434-6001 47:2<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11019-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11019-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cleven M. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut NATIONALLICENCE 700 1- Guo F. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut NATIONALLICENCE 700 1- Hanhart C. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut NATIONALLICENCE 700 1- Meißner U. Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/2(2011-02-01), 1-9 1434-6001 47:2<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer