Evidence for in-medium changes of four-quark condensates |
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| Authors: | Thomas R Zschocke S Kämpfer B |
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| Institution: | Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf, PF 510119, 01314 Dresden, Germany. |
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| 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(--> pi0gamma) with A = Nb and LH2. |
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