The 38th International Symposium on Lattice Field Theory

I=1 pi-pi scattering at the physical point and the long-distance behavior of the vector correlator

Jul 27, 2021, 6:00 AM

15m

Oral presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Srijit Paul (The Cyprus Institute)

Description

We present a finite volume spectroscopy calculation of I=1 pi-pi scattering utilizing the (stochastic) distillation framework on close to physical and physical point N_f = $2+1$ CLS ensembles. Using the finite volume energy levels, we discuss the long-distance behavior of the vector correlator, which is dominated by the two-pion channel. This part can be accurately constrained using the reconstructions, which has important consequences for lattice calculations of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment.

Presentation materials

I=1 pi-pi scattering at the physical point and the long-distance behavior of the vector correlator

srijit_Lat21.pdf