Speaker
William Detmold
Description
Spectroscopy in lattice field theory begins with the choice of interpolating operators used to couple to the desired quantum numbers. Since the Hilbert spaces of bosonic theories such as lattice QCD are essentially infinite dimensional, standard spectroscopy techniques depend strongly on this choice in practice and require implicit assumptions about unphysical operator-state overlaps. More robust analysis techniques that require milder assumptions but nevertheless produce two-sided spectral bounds are discussed and shown to be of practical use in analysis of two-nucleon systems.
Authors
Anthony V. Grebe
(Department of Physics and Maryland Center for Fundamental Physics, University of Maryland,)
Daniel Hackett
Marc Illa
(PNNL)
Michael Wagman
Phiala Elisabeth Shanahan
Robert J. Perry
(Center for Theoretical Physics - A Leinweber Institute, Massachusetts Institute of Technology)
William Detmold