Factorization and Non-Factorization of In-Medium Four-Quark Condensates

Abstract

It is well-established for the vacuum case that in the limit of a large number of colors N_c the four-quark condensates factorize into products of the two-quark condensate. It is shown that in the combined large-N_c and linear-density approximation four-quark condensates do not factorize in a medium of pions (finite temperature system) but do factorize in a medium of nucleons (nuclear system).

4 pages

References in corpus (2)

• In-medium spectral change of omega mesons as a probe of QCD four-quark condensate
• QCD sum rules at finite density in the large-N_c limit: The coupling of the rho-nucleon system to the D_{13}(1520)

Cited by in corpus (15)

• Hadrons in strongly interacting matter
• Recent Progress in QCD Condensate Evaluations and Sum Rules
• Is Rho-Meson Melting Compatible with Chiral Restoration?
• Four-Quark Condensates in Nucleon QCD Sum Rules
• The spectral function of the omega meson in nuclear matter from a coupled-channel resonance model
• Scalar susceptibilities and four-quark condensates in the meson gas within Chiral Perturbation Theory
• Evidence for In-Medium Changes of Four-Quark Condensates
• Four-quark condensates and chiral symmetry restoration in a resonance gas model
• The rho meson in a scenario of pure chiral restoration
• Wilson coefficients and four-quark condensates in QCD sum rules for medium modifications of $D$ mesons
• Weighted finite energy sum rules for the omega meson in nuclear matter
• Algebraic Approach to Bare Nucleon Matrix Elements
• Role of Four-Quark Condensates in QCD Sum Rules
• General formula for the four-quark condensate and vacuum factorization assumption
• Properties of D-Mesons from QCD Sum Rules with an Improved Spectral Function