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Nucleon sigma term and quark condensate in nuclear matter.
- Source :
-
European Physical Journal A -- Hadrons & Nuclei . Mar2007, Vol. 31 Issue 4, p626-629. 4p. 2 Graphs. - Publication Year :
- 2007
-
Abstract
- We study the bound-nucleon sigma term and the quark condensate in nuclear matter. In the quark-meson coupling (QMC) model the nuclear correction to the sigma term is small and negative, i.e., it decelerates the decrease of the quark condensate in nuclear matter. However, the quark condensate in nuclear matter is controlled primarily by the scalar-isoscalar σ field. Compared to the leading term, it moderates the decrease more than that of the nuclear sigma term alone at densities around and larger than the normal nuclear-matter density. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUARKS
*PARTICLES (Nuclear physics)
*MESONS
*NUCLEAR physics
*PROPERTIES of matter
Subjects
Details
- Language :
- English
- ISSN :
- 14346001
- Volume :
- 31
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- European Physical Journal A -- Hadrons & Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 24651262
- Full Text :
- https://doi.org/10.1140/epja/i2006-10179-4