Journal Article

PreJuSER-60501

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Charge Fluctuations and electric mass in a hot meson gas

Döring, M.FZJ* ; Koch, V.

2007
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/10553  doi:10.1103/PhysRevC.76.054906

Abstract: Net charge fluctuations in a hadron gas are studied using an effective hadronic interaction. The emphasis of this work is to investigate the corrections of hadronic interactions to the charge fluctuations of a noninteracting resonance gas. Several methods such as loop, density, and virial expansions are employed. The calculations are also extended to SU(3), and some resummation schemes are considered. Although the various corrections are sizable individually, they cancel to a large extent. As a consequence, we find that charge fluctuations are rather well described by the free resonance gas.

Keyword(s): meson: gas ; charge: fluctuation ; mass: electric ; pi pi: interaction ; correction: higher-order ; symmetry: SU(3) ; gas: resonance ; statistics: quantum ; unitarity ; susceptibility ; effective Lagrangian ; rho(770): mass ; expansion: relativistic ; expansion: virial ; numerical calculations

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theoretische Kernphysik (IKP-3)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2007

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Database coverage:

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