XIIth Quark Confinement and the Hadron Spectrum

Scattering of charmed mesons from lattice QCD

29 Aug 2016, 16:40

20m

Alexandros I (Makedonia Palace)

Section C: Heavy Quarks Section C

Speaker

Dr Graham Moir (University of Cambridge)

Description

We present a lattice QCD study of coupled-channel $D\pi$, $D\eta$ and $D_s\overline{K}$
scattering, as well single-channel $DK$ scattering. Our methodology allows us to determine precise finite volume spectra which we use to constrain scattering amplitudes as a function of energy. We interpret our results in terms of poles in the $S$-matrix and provide a measure of the coupling of each channel to a given pole. By exploring $S$, $P$ and $D$ wave interactions we comment on the nature of states with $J^P=0^{+}$, relevant for the $D_0^{\ast }(2400)$ and $D_{s0}^{\ast }(2317)$, as well as states with $J^P=1^{-},2^{+}$.

Presentation materials

Graham_Moir_conf12.pdf