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RHO MESON PROPERTIES IN NUCLEAR MATTER FROM QCD SUM RULES

    https://doi.org/10.1142/9789812799913_0048Cited by:0 (Source: Crossref)
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    Abstract:

    We study the properties of rho mesons in nuclear matter by means of QCD sum rules at finite density. For increased sensitivity, we subtract out the vacuum contributions. With the spectral function as estimated in the literature, these subtracted sum rules are found to be not well satisfied. We suppose that Landau singularities from higher resonance states in the nearby region in this channel are the cause for this failure.