arXiv:hep-ph/0510156·v1·High Energy Physics — Phenomenology
Evidence for In-Medium Changes of Four-Quark Condensates
R. Thomas🇩🇪 · S. Zschocke🇩🇪 · B. Kampfer🇩🇪
Abstract
Utilizing the QCD sum rule approach to the behavior of the omega meson in nuclear matter we derive evidence for in-medium changes of particular four-quark condensates from the recent CB-TAPS experiment for the reaction gamma + A -> A' + omega (-> pi0 gamma) with A = Nb and LH2.
Comments: Submitted to Phys. Rev. Lett., 4 pages