The oscillation frequency, Δ md, of B0 mesons is measured using semileptonic decays with a D- or D∗ - meson in the final state. The data sample corresponds to 3.0fb- 1 of pp collisions, collected by the LHCb experiment at centre-of-mass energies s = 7 and 8TeV. 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 consistent with the current world average and has similar precision.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2016). A precise measurement of the B0 meson oscillation frequency. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 76(7), 412 [10.1140/epjc/s10052-016-4250-2].

A precise measurement of the B0 meson oscillation frequency

BELLOLI, NICOLETTA;Borsato, M;CALVI, MARTA;CARNITI, PAOLO;CASSINA, LORENZO;GOTTI, CLAUDIO;GRILLO, LUCIA;Martinelli, M;MATTEUZZI, CLARA;Petruzzo, M;
2016

Abstract

The oscillation frequency, Δ md, of B0 mesons is measured using semileptonic decays with a D- or D∗ - meson in the final state. The data sample corresponds to 3.0fb- 1 of pp collisions, collected by the LHCb experiment at centre-of-mass energies s = 7 and 8TeV. 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 consistent with the current world average and has similar precision.
Articolo in rivista - Articolo scientifico
Physics and Astronomy (miscellaneous)
English
2016
76
7
412
412
open
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2016). A precise measurement of the B0 meson oscillation frequency. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 76(7), 412 [10.1140/epjc/s10052-016-4250-2].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/154251
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