Speaker
Nicolas Lang
(Trinity College Dublin)
Description
For the first time, we find a complex $D_0^\star$ resonance pole in elastic Isospin-1/2 $D\pi$ scattering, using Lattice QCD with a pion mass $m_\pi\approx239$ MeV and the Lüscher finite-volume quantisation condition. The resonance, which is lighter than the $D_{s0}^\star$ found on the same lattice, is strongly coupled to the $S$-wave $D\pi$ channel. We find that both $q\bar{q}$-like and $D\pi$-like constructions are necessary to interpolate the corresponding spectrum from the vacuum.
based upon work in preparation
L. Gayer, N. Lang, S. Ryan, D. Tims, C. E. Thomas, D. J. Wilson
for the Hadron Spectrum Collaboration
Primary author
Nicolas Lang
(Trinity College Dublin)
