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



Göckeler, M, Horsley, R, Lage, M, Meissner, U-G, Rakow, PEL ORCID: 0000-0003-4486-2158, Rusetsky, A, Schierholz, G and Zanotti, JM
(2012) Scattering phases for meson and baryon resonances on general moving-frame lattices. Physical Review D, 86 (9). 094513-.

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Abstract

A proposal by L\"uscher 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 $m_\pi L$.

Item Type: Article
Additional Information: 41 pages, 3 figures. References added, minor edits to text. Version to be published in Phys. Rev. D
Uncontrolled Keywords: hep-lat, hep-lat, hep-th, nucl-th
Depositing User: Symplectic Admin
Date Deposited: 07 Dec 2018 14:41
Last Modified: 15 Mar 2024 07:29
DOI: 10.1103/physrevd.86.094513
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3029720