Speaker
Luka Jevšenak
(University of Ljubljana)
Description
Using Lattice QCD, we performed spectroscopy of the $\rho$ meson on a
C13 gauge ensemble, with pion mass $m_\pi = 317\ \text{MeV}$ and lattice
spacing $a = 0.114\ \text{fm}$. We constructed the two-point correlation
functions from the rho and two pion operators, from which we extracted
the eigenenergies of a finite Euclidean lattice. Using the Lüscher
formalism, we fit the infinite Minkowski volume Breit-Wigner scattering
amplitude to the eigenenergies of the finite system. The results of this
ensemble will be combined with those from three other ensembles to
obtain properties of the $\rho$ meson at the physical point, which is at
a physical pion mass and a continuous and infinite spacetime.
Authors
Luka Jevšenak
(University of Ljubljana)
Luka Leskovec
(Jozef Stefan Institute)