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تسجيل مستخدم جديدObservation of $rho / omega$ Meson Modification in Nuclear Matter
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We have measured invariant mass spectra of electron-positron pairs in the target rapidity region of 12GeV p+A reactions. We have observed a significant difference in the mass spectra below the $omega$ meson between p+C and p+Cu interactions. The difference is interpreted as a signature of the $rho/omega$ modification at normal nuclear-matter density.
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