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QCD susceptibilities and nuclear-matter saturation in a relativistic chiral theory

G. Chanfray 1 M. Ericson 2 
2 Théorie
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : We investigate the evolutions with density of the QCD scalar susceptibility and of the sigma mass in a chiral relativistic theory of nuclear matter, in the mean-field approximation. In order to reach saturation we need to introduce the scalar response of the nucleons. The consequences are a quite mild density dependence of the sigma mass and the progressive decoupling of the quark density fluctuations from the nucleonic ones at large densities.
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Submitted on : Tuesday, July 26, 2005 - 1:29:54 PM
Last modification on : Friday, September 10, 2021 - 1:50:06 PM

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G. Chanfray, M. Ericson. QCD susceptibilities and nuclear-matter saturation in a relativistic chiral theory. European Physical Journal A, EDP Sciences, 2005, 25, pp.151-157. ⟨10.1140/epja/i2005-10074-6⟩. ⟨in2p3-00024434⟩

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