# A precise measurement of the B0 meson oscillation frequency

LHCb Collaboration; Bernet, R; Müller, K; Steinkampf, O; Straumann, U; Vollhardt, A; et al (2016). A precise measurement of the B0 meson oscillation frequency. European Physical Journal C - Particles and Fields:76: 412.

## Abstract

The oscillation frequency, Δmd, of B0 mesons is measured using semileptonic decays with a D− or D∗− meson in the final state, in a data sample of pp collisions collected by the LHCb detector corresponding to an integrated luminosity of 3.0fb−1. A combination of the two decay modes gives Δmd=(505.0±2.1±1.0)ns−1, where the first uncertainty is statistical and the second is systematic. This is the most precise single measurement of this parameter. It is compatible with the current world average and has similar precision.

## Abstract

The oscillation frequency, Δmd, of B0 mesons is measured using semileptonic decays with a D− or D∗− meson in the final state, in a data sample of pp collisions collected by the LHCb detector corresponding to an integrated luminosity of 3.0fb−1. A combination of the two decay modes gives Δmd=(505.0±2.1±1.0)ns−1, where the first uncertainty is statistical and the second is systematic. This is the most precise single measurement of this parameter. It is compatible with the current world average and has similar precision.

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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics Physical Sciences > Engineering (miscellaneous) Physical Sciences > Physics and Astronomy (miscellaneous) English 2016 27 Dec 2016 13:37 13 May 2020 21:09 Springer 1434-6044 Gold Publisher DOI. An embargo period may apply. https://doi.org/10.1140/epjc/s10052-016-4250-2