arXiv subjects

Michael Lage

Publications and source records attributed to Michael Lage.

2 recordsLinked to original sources

arXiv2012

Resonance properties from the finite-volume energy spectrum

A new method based on the concept of probability distribution is proposed to analyze the finite volume energy spectrum in lattice QCD. Using synthetic lattice data, we demonstrate that for the channel with quantum numbers of the Delta-resonance a clear resonance structure emerges in such an analysis. Consequently, measuring the volume-dependence of the energy levels in lattice QCD will allow to determine the mass and the width of the Delta with reasonable accuracy.

hep-lat↗

arXiv2009

A method to measure the antikaon-nucleon scattering length in lattice QCD

We propose a method to determine the isoscalar \bar K N scattering length on the lattice. Our method represents the generalization of Lüscher's approach in the presence of inelastic channels (complex scattering length). In addition, the proposed approach allows one to find the position of the S-matrix pole corresponding the the Lambda(1405) resonance.

hep-lat↗