arXiv:1309.0850·v1·High Energy Physics — Lattice
Study of the a_0(980) on the lattice
Marc Wagner🇩🇪 · Abdou Abdel-Rehim🇨🇾 · Constantia Alexandrou🇨🇾 · Mattia Dalla Brida🇮🇪 · Mario Gravina🇨🇾 · Giannis Koutsou🇨🇾 · Luigi Scorzato🇮🇹 · Carsten Urbach🇩🇪
Abstract
We present lattice results for the a_0(980) state using a variational approach with a variety of creation operators: quark-antiquark, mesonic molecule, diquark-antidiquark as well as two-meson type. Focus is put on recent technical advances, in particular the computation of singly disconnected diagrams.
Comments: 7 pages, 3 figures, talk given at the 31st International Symposium on Lattice Field Theory (Lattice 2013), July 29-August 3 2013, Mainz, Germany