Speaker
Miguel Salg
(University of Bern)
Description
We present recent results of the Baryon Scattering (BaSc) collaboration concerning two-baryon spectroscopy from Lattice QCD on CLS ensembles. We focus on two systems: nucleon-nucleon scattering in both isospin states, $I = 0$ (deuteron) and $I = 1$ (dineutron); and strangeness $S = -2$ hyperon-hyperon scattering in the H-dibaryon channel. The latter is a coupled-channel system of $\Lambda\Lambda$, $N\Xi$, and $\Sigma\Sigma$ scattering. For both the $NN$ and H-dibaryon cases, we present preliminary results that extend prior studies at large pion masses towards lower ones, approaching the physical point. A particular focus is on the various left-hand cuts arising from one-particle exchanges.
Author
Miguel Salg
(University of Bern)