Evidence for In-Medium Changes of Four-Quark Condensates
arXiv:hep-ph/0510156 · doi:10.1103/PhysRevLett.95.232301
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.
Submitted to Phys. Rev. Lett., 4 pages