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Hadronic decay width from finite-volume energy spectrum in lattice QCD (1010.1390v1)
Published 7 Oct 2010 in hep-lat
Abstract: The standard approach to determine the parameters of a resonance is based on the study of the volume dependence of the energy spectrum. In this work we study a non-linear sigma model coupled to a scalar field in which a resonance emerges. Using an analysis method introduced recently, based on the concept of probability distribution, it is possible to determine the mass and the width of the resonance.
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