Speaker
Description
We present preliminary results of lattice QCD calculations for $D\pi$ scattering with isospin-$\frac{1}{2}$ and $\frac{3}{2}$. Using newly generated $N_f=2+1$ Wilson-Clover configurations by the CLQCD collaboration, we examine two volume extents ($L^3 \times T=32^3 \times 96$ and $48^3 \times 96$) at the same lattice spacing ($a=0.080$ fm) with a pion mass of $m_\pi \approx 290$ MeV. Employing various operators in both the rest and the moving frame, we determine $S$-wave scattering phase shifts from finite-volume spectra, assuming negligible contributions from higher partial waves. We identify a virtual state associated with the $D_0^*$ in these ensembles. Ongoing investigations aim to determine higher partial waves and explore the $m_{\pi}$ dependence and the continuum limit.
| Topical area | Hadronic and Nuclear Spectrum and Interactions |
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