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Resonances in a finite volume

Abstract : We review applications of effective field theory methods in a finite volume for the extraction of the characteristics of unstable particles from lattice QCD calculations. In particular, the scalar mesons f0(980),a0(980) are considered. We formulate criteria that distinguish between hadronic molecules and tightly bound quark states, as well as between the ordinary qq̄ and the tetraquark states. Using these criteria will enable one to study the nature of scalar mesons on the lattice. Further, we also formulate a procedure to calculate resonance matrix elements on the lattice by using the background field method.
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http://hal.in2p3.fr/in2p3-00860834
Contributor : Sophie Heurteau <>
Submitted on : Wednesday, September 11, 2013 - 11:24:14 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:29 PM

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V. Bernard, D. Hoja, M. Lage, U.‐g. Meißner, A. Rusetsky. Resonances in a finite volume. INTERNATIONAL CONFERENCE ON THE STRUCTURE OF BARYONS (BARYONS' 10), Dec 2010, Osaka, Japan. pp.202-208, ⟨10.1063/1.3647374⟩. ⟨in2p3-00860834⟩

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