Upper Limit of D0 Production in Central Pb-Pb Collisions at 158A GeV

Abstract

Results are presented from a search for the decays D0 -> Kmin piplus and D0bar -> Kplus pimin in a sample of 3.8x10^6 central Pb-Pb events collected with a beam energy of 158A GeV by NA49 at the CERN SPS. No signal is observed. An upper limit on D0 production is derived and compared to predictions from several models.

REVTEX 5 pages, 4 figures

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• A high-resolution pixel silicon Vertex Detector for open charm measurements with the \NASixtyOne spectrometer at the CERN SPS
• Study of hard and electromagnetic processes at CERN-SPS energies: an investigation of the high-${\mu }_{\mathbf{B}}$ region of the QCD phase diagram with NA60+