Study of Rare Decays of Mesons Using the Omega Spectrometer
Study of Rare Decays of Mesons Using the Omega Spectrometer

Author:

Publisher:

Published: 1973

Total Pages:

ISBN-13:

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A proposed experiment is described in which the Omega Spectrometer is used to obtain 2 x 10/sup 6/ events of final states involving a K/sup -/ or p. The experiment consists of using a negative incident pion beam and triggering on a forward K/sup - or p with Cherenkov low pressure counter and its associated scintillator hodoscope. Various pi /sup - / + p interactions are suggested. The physics interest and technical feasibility are also discussed. (JFP).

Discovery of the Decay D0 to Omega Eta
Discovery of the Decay D0 to Omega Eta

Author: Caitlin Malone

Publisher:

Published: 2009

Total Pages: 20

ISBN-13:

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Abstract: Although the D0 meson (a bound state of a charm and an antiup quark) was first observed in 1976 and has been extensively studied since, it remains unknown how often a D0 meson decays into an omega meson and an eta meson. This study uses D0 mesons collected by the BaBar detector at SLAC National Accelerator Laboratory to measure the branching fraction of a D0 meson decaying to an omega meson and an eta meson. The magnitude of this branching fraction gives information on both the weak and strong forces. Using Monte Carlo simulation data it is possible to determine selection criteria that reduce the substantial backgrounds, and the resulting event distributions can be fit to determine the number of D0 to omega eta signal events, and hence the branching fraction. The preliminary branching fraction is measured as BF(D0 to omega eta) = (2.21 +/- 0.08 (stat) +/- 0.22 (syst)) x 10^-3.