Scattering phases for meson and baryon resonances on general moving-frame lattices.

Roger Horsley, M. Lage, U.-G. Meissner, P.E.L. Rakow, A. Rusetsky, G. Schierholz, J.M. Zanotti

Research output: Contribution to journalArticlepeer-review

Abstract

A proposal by Luscher enables one to compute the scattering phases of elastic two-body systems from the energy levels of the lattice Hamiltonian in a finite volume. In this work we generalize the formalism to S--, P-- and D--wave meson and baryon resonances, and general total momenta. Employing nonvanishing momenta has several advantages, among them making a wider range of energy levels accessible on a single lattice volume and shifting the level crossing to smaller values of mpiL
Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Publication statusUnpublished - 2012

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