Observation of Au + Au → Au + Au + ρ 0 and Au + Au → Au ∗ + Au ∗ + ρ 0 with STAR
نویسنده
چکیده
We report the first observation of the reactions + ρ 0 with the STAR detector. The ρ are produced at small perpendicular momentum, as expected if they couple coherently to both nuclei. We discuss models of vector meson production and the correlation with nuclear breakup, and present a fundamental test of quantum mechanics that is possible with the system.
منابع مشابه
0 Production at High p T in Central Au + Au and p + p collisions at √ s NN = 200 GeV in STAR
The ρ production at high-pT (5.0 ≤ pT ≤ 10.0 GeV/c) measured in minimum bias p+ p, Au+Au and central Au+Au collisions in the STAR detector are presented. The ρ/π ratio measured in p+p is compared to PYTHIA calculations as a test of perturbative quantum chromodynamics (pQCD) that describes reasonably well particle production from hard processes. The ρ nuclear modification factor are also present...
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