Speaker
Andreas Hackl
(University of Regensburg)
Description
We present a study using the distillation method to analyze the spectra of nucleon, nucleon-pion, and nucleon-pion-pion states in the positive parity sector as well as nucleon and nucleon-pion states in the negative sector. The study involves using five domain wall fermion ensembles with varying pion masses ($m_\pi = 139 - 279 \text{ MeV}$), lattice spacings ($a^{-1} = 1.730 \text{ GeV}$ and $a^{-1}=2.359 \text{ GeV}$) and volumes ($m_\pi L = 3.84 - 7.59$). To tackle the large number of contractions in this project, we implemented an algorithm to automate the contraction of general nucleon pion correlation functions containing an arbitrary number of pions.
Primary author
Andreas Hackl
(University of Regensburg)
Co-author
Christoph Lehner
(University of Regensburg)
