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Measurement of B 0d - oscillations

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Zeitschrift für Physik C Particles and Fields

Abstract

B 0d meson oscillations are measured in hadronic Z0 decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a b or a b̄ quark when it is produced, and using the charge of a lepton emitted at large pt or of a D*± to sign the presence of a B or a B̄ meson when it decays. With 3.2 million hadronic Z0 decays registered by DELPHI between 1991 and 1994, the mass difference Δm d between the two physical B 0d states is measured in four channels:

Taking into account the statistical overlap between these measurements and the common systematic uncertainties, the combined result is:

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DELPHI Collaboration

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DELPHI Collaboration. Measurement of B 0d - oscillations. Z Phys C - Particles and Fields 76, 579–598 (1997). https://doi.org/10.1007/s002880050582

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  • DOI: https://doi.org/10.1007/s002880050582

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