Pion-nucleon scattering in the Roper channel from lattice QCD

URN to cite this document:: urn:nbn:de:bvb:355-epub-387921
DOI to cite this document:: 10.5283/epub.38792

Lang, C. B. ; Leskovec, L. ; Padmanath, M.

; Prelovsek, S.

Preview

PDF - Published Version
(632kB)

Date of publication of this fulltext: 20 Mar 2019 12:51

Alternative links to fulltext:DOI Publisher

Details

Preview

Indexed in

Export bibliographical data

Abstract

We present a lattice QCD study of N pi scattering in the positive-parity nucleon channel, where the puzzling Roper resonance N*(1440) resides in experiment. The study is based on the PACS-CS ensemble of gauge configurations with N-f = 2 + 1 Wilson-clover dynamical fermions, m pi similar or equal to 156 MeV and L similar or equal to 2.9 fm. In addition to a number of qqq interpolating fields, we ...