$P$-wave $\pi \pi$ scattering and the $\rho$ resonance from lattice QCD

Constantia Alexandrou, Luka Leskovec, Stefan Meinel +6

We calculate the parameters describing elastic $I=1$, $P$-wave $\pi \pi$ scattering using lattice QCD with $2+1$ flavors of clover fermions. Our calculation is performed with a pion mas…