May 6 – 12, 2012
Peniche, Portugal
Europe/Lisbon timezone

Nucleon spectroscopy on the lattice

May 7, 2012, 12:00 PM
30m
Peniche, Portugal

Peniche, Portugal

Hotel Praia Norte, Av. Monsenhor Bastos, 2520-206 Peniche, Portugal

Speaker

Valentina Verduci (University of Graz)

Description

We study positive and negative parity states of the nucleon, with particular interest in the parity reversal pattern of the Roper resonance. We investigate the isospin 1/2 channel of the pion-nucleon scattering on the lattice, including meson-nucleon interpolators. The distillation method makes the computation of disconnected diagrams affordable, while the variational method is used to extract the masses. Similar techniques can be exploited for other states of the QCD spectrum.

Primary author

Valentina Verduci (University of Graz)

Co-author

Prof. Christian B. Lang (Universitaet Graz)

Presentation materials