%0 Journal Article
%A Cleven, M.
%A Guo, F.-K.
%A Hanhart, C.
%A Meißner, U.-G.
%T Light meson mass dependence of the  positive parity heavy-strange mesons
%J The European physical journal / A
%V 47
%@ 1434-6001
%C Berlin
%I Springer
%M PreJuSER-18600
%P 19
%D 2011
%Z This work is partially supported by the Helmholtz Association through funds provided to the Virtual Institute "Spin and strong QCD" (VH-VI-231) and by the DFG (TR 16, "Subnuclear Structure of Matter"), the European Community-Research Infrastructure Integrating Activity "Study of Strongly Interacting Matter" (acronym Hadron-Physics2, Grant Agreement No. 227431) under the FP7 of the EU, and the BMBF (Grant No. 06BN9006).
%X We calculate the masses of the resonances D*(s0)(2317) and D-s1(2460) as well as their bottom partners as bound states of a kaon and a D-(*())-and B-(*())-meson, respectively, in unitarized chiral perturbation theory at next-to-leading order. After fixing the parameters in the D*(s0)(2317) channel, the calculated mass for the D-s1(2460) is found in excellent agreement with experiment. The masses for the analogous states with a bottom quark are predicted to be MB*(s0) - (5696 +/- 40) MeV and M-Bs1 - (5742 +/- 40) MeV in reasonable agreement with previous analyses. In particular, we predict M-Bs1-MB*(s0) - 46 +/- 1MeV. 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.
%K K: mass (INSPIRE)
%K perturbation theory: chiral (INSPIRE)
%K higher-order: 1 (INSPIRE)
%K D/s0*(2317): mass: calculated (INSPIRE)
%K D/s1(2460): mass: calculated (INSPIRE)
%K bottom meson: mass: calculated (INSPIRE)
%K meson meson: bound state (INSPIRE)
%K pi: mass (INSPIRE)
%K Goldstone particle: scattering amplitude (INSPIRE)
%K coupled channel (INSPIRE)
%K binding energy (INSPIRE)
%K numerical calculations (INSPIRE)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000288551700006
%R 10.1140/epja/i2011-11019-2
%U https://juser.fz-juelich.de/record/18600