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

Study of the a_0(980) on the lattice

High Energy Physics - Lattice 2013-09-05 v1 High Energy Physics - Experiment High Energy Physics - Phenomenology

Authors: Marc Wagner , Abdou Abdel-Rehim , Constantia Alexandrou , Mattia Dalla Brida , Mario Gravina , Giannis Koutsou , Luigi Scorzato , Carsten Urbach

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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.

Keywords

lattice QCD a_0(980) variational approach disconnected diagrams creation operators tetraquark

Cite

@article{arxiv.1309.0850,
  title  = {Study of the a_0(980) on the lattice},
  author = {Marc Wagner and Abdou Abdel-Rehim and Constantia Alexandrou and Mattia Dalla Brida and Mario Gravina and Giannis Koutsou and Luigi Scorzato and Carsten Urbach},
  journal= {arXiv preprint arXiv:1309.0850},
  year   = {2013}
}

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

Study of the a_0(980) on the lattice

Abstract

Keywords

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