24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Coupled-channel analysis of $D\pi$, $D\eta$ and $D_{s}\bar{K}$ scattering using lattice QCD

28 Jul 2016, 15:00
20m
Building B2a Room 2065 (Highfield Campus, University of Southampton)

Building B2a Room 2065

Highfield Campus, University of Southampton

Talk Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Dr Graham Moir (University of Cambridge)

Description

We present an extensive study of isospin $1/2$ coupled-channel $D\pi$, $D\eta$ and $D_{s}\bar{K}$ scattering, as well as isospin $3/2$ elastic $D\pi$ scattering, from $N_{f} = 2+1$ lattice QCD. Our use of distillation in combination with variationally optimised interpolating operators allows us to extract statistically precise two-meson spectra, which we use to constrain scattering amplitudes as a function of energy. We interpret our results in terms of poles in the scattering matrix, finding a near-threshold bound state in S-wave, a deeply bound vector state in P-wave and a narrow resonance in D-wave.

Primary author

Dr Graham Moir (University of Cambridge)

Presentation Materials