The $b_1$ resonance in coupled $\pi \omega$, $\pi \varphi$ scattering from lattice QCD

Antoni J. Woss, Christopher E. Thomas, Jozef J. Dudek +2

We present the first lattice QCD calculation of coupled $\pi \omega$ and $\pi \varphi$ scattering, incorporating coupled $S$ and $D$-wave $\pi \omega$ in $J^P=1^{+}$. Finite-volume spectra in three volumes a…