Abstract
We investigate the density dependence of the chiral order parameter or quark condensate 〈q̄q〉 in nuclear matter using relativistic Brueckner-Hartree-Fock theory. While the leading behavior linear in the density is known to be determined model independently by the pion-nucleon sigma term, we demonstrate that higher order corrections are extremely sensitive to the interpretation of the scalar "σ"-meson and its substructure.
Original language | English |
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Pages (from-to) | 40-44 |
Number of pages | 5 |
Journal | Physics Letters B |
Volume | 367 |
Issue number | 1-4 |
DOIs | |
State | Published - 18 Jan 1996 |