Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons: Investigation of the U(1)A anomaly term

Kovács, Péter and Wolf, György (2013) Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons: Investigation of the U(1)A anomaly term. ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT, 6 (3). pp. 853-858. ISSN 1899-2358

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Abstract

Zero temperature properties of an (axial-) vector meson extended linear σ-model are discussed, concerning on the possible different realizations of the axial anomaly term. The different anomaly terms are compared with each other on the basis of a χ 2 minimalization process. It is found that there is no essential difference among the different realizations. This means that any of them can be equally used from phenomenological point of view.

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