Topological sectors and the pion mass

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We study quenched and dynamical pion correlators in the two-flavour Schwinger model (2D QED) both within topological charge sectors and averaged. The results show that a clean-cut definition of a pion mass is no longer possible if tunneling between sectors does not occur. PACS numbers: 11.15.Ha, 12.20.-m, 11.10.Kk
11 pages, 17 Postscript figures, uses a4, epsf

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/39089

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-lat/9710019
 http://arxiv.org/abs/hep-lat/9710019

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arXiv