26-31 July 2021
Mexico City
Mexico/General timezone
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Mexico City -
Meson Spectroscopy

The lightest $D_0^*$ resonance from QCD


  • Mr. Nicolas LANG

Primary authors


For the first time, we map out the energy dependence of the elastic Isospin-1/2 D$\pi$ scattering amplitude and find a complex $D_0^*$ resonance pole, using Lattice QCD with a pion mass $m_{\pi}=239$ MeV. The resonance, which is lighter than the $D_{s0}^⋆$ found on the same lattice, is strongly coupled to the S-wave $D\pi$ channel. We find that both $q\bar{q}$- and $D\pi$-like constructions are necessary to interpolate the corresponding spectrum from the vacuum.

Based on arXiv:2102.04973