title: D*(s0)(2317) meson and D-meson-kaon scattering from lattice QCD.
abstract: The scalar meson D*(s0)(2317) is found 37(17) MeV below the DK threshold in a lattice simulation of the J(P)=0(+) channel using, for the first time, both DK as well as s¯c interpolating fields. The simulation is done on N(f)=2+1 gauge configurations with m(π) is approximately equal to 156 MeV, and the resulting M(D*(s0))-1/4(M(D(s))+3M(D*(s)))=266(16) MeV is close to the experimental value 241.5(0.8) MeV. The energy level related to the scalar meson is accompanied by additional discrete levels due to DK scattering states. The levels near threshold lead to the negative DK scattering length a(0)=-1.33(20) fm that indicates the presence of a state below threshold.
authors: Fermi National Accelerator Laboratory, Batavia, Illinois 60510-5011, USA.
authors: Daniel
authors: D
authors: Mohler
authors: Institute of Physics, University of Graz, A-8010 Graz, Austria.
authors: C B
authors: CB
authors: Lang
authors: Jozef Stefan Institute, 1000 Ljubljana, Slovenia.
authors: Luka
authors: L
authors: Leskovec
authors: Jozef Stefan Institute, 1000 Ljubljana, Slovenia and Department of Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.
authors: Sasa
authors: S
authors: Prelovsek
authors: TRIUMF, 4004 Wesbrook Mall Vancouver, British Columbia V6T 2A3, Canada.
authors: R M
authors: RM
authors: Woloshyn