Jul 26 – 30, 2021
US/Eastern timezone

One Flavour QCD as an analog computer for SUSY

Jul 29, 2021, 7:30 AM
Oral presentation Particle physics beyond the Standard Model Particle physics beyond the Standard Model


Felix Ziegler (University of Southern Denmark)


We numerically study QCD with a single quark flavour on the lattice probing predictions from effective field theories that are equivalent to minimal super-symmetric Yang-Mills theory in the large $N_c$ limit.

The hadronic spectrum including excited states is analyzed using one gauge coupling and several physical volumes and fermion masses. We use the LapH method and also compute disconnected diagrams.
Lattice simulations with an odd number of Wilson fermions give rise to regions of configuration space with a negative fermionic weight entailing a sign problem. We perform a detailed analysis on the spectrum of the Wilson-Dirac operator and report on observed cases of a negative fermion determinant in our ensembles.

Primary authors

Felix Ziegler (University of Southern Denmark) Michele Della Morte (University of Southern Denmark (DK)) Dr J Tobias Tsang (CP3-Origins, The University of Southern Denmark) Benjamin Jaeger (University of Southern Denmark) Francesco Sannino (Syddansk Universitet (DK))

Presentation materials