Study of the a_0(980) on the lattice

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.

7 pages, 3 figures, talk given at the 31st International Symposium on Lattice Field Theory (Lattice 2013), July 29-August 3 2013, Mainz, Germany

References in corpus (4)

• Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
• Scalar mesons moving in a finite volume and the role of partial wave mixing
• Computing K and D meson masses with N_f = 2+1+1 twisted mass lattice QCD
• Lattice investigation of the tetraquark candidates a0(980) and kappa

Cited by in corpus (5)

• Investigation of light and heavy tetraquark candidates using lattice QCD
• Investigating efficient methods for computing four-quark correlation functions
• Investigation of the tetraquark candidate $a_0(980)$: technical aspects and preliminary results
• Twisted mass lattice computation of charmed mesons with focus on $D^{\ast \ast }$
• Importance of closed quark loops for lattice QCD studies of tetraquarks