Measurement of $D$ Meson Production in 200-{GeV} $\pi^-$ Be Interactions

The ACCMOR collaboration Bailey, R. ; Belau, E.R. ; Böhringer, T. ; et al.
Z.Phys.C 30 (1986) 51, 1986.
Inspire Record 221058 DOI 10.17182/hepdata.2112

We have measured the differential and total cross sections ofD meson production in 200 GeV π−-beryllium interactions, using a sample of 48 fully reconstructed and nearly background-freeD mesons in the decay channelsK∓π±,K∓π±π± andK∓π∓π±π±. A single electron trigger has been used to select events containing a pair of charmed particles. A vertex telescope of 6 silison microstrip detectors allowed the reconstruction of tracks of charged secondaries and the reconstruction of primary and decay vertices with high precision. The ratio of branching fractions for\(\mathop {D^0 }\limits^{( - )}\to K^ \mp\pi ^ \pm\) to\(\mathop {D^0 }\limits^{( - )}\to K^ \mp\pi ^ \mp\pi ^ \pm\pi ^ \pm\), and an upper limit for\(D^0- \bar D^0 \) mixing are presented.

5 data tables

'leading' D-mesons, i.e. D-mesons, containing quarks, from PI- beam. Also AD0-mesons from. D*- decays.

'non-leading' D-mesons.

No description provided.

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