A precise measurement of the B[superscript 0] meson oscillation frequency
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s10052-016-4250-2.pdf
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1.63 MB
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Checksum (MD5)
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Author(s)
Ilten, Philip J
Williams, Michael
Date Issued
July 2016
Journal
The European Physical Journal C
Publisher
Springer Nature
Citation
Aaij, R., et al. “A Precise Measurement of the B[superscript 0] Meson Oscillation Frequency.” The European Physical Journal C, vol. 76, no. 7, July 2016. © 2016 The Authors
Version
Final published version
Abstract
The oscillation frequency, Δm[subscript d], of B[superscript 0] mesons is measured using semileptonic decays with a D[superscript -] or D[superscript ∗-] meson in the final state. The data sample corresponds to 3.0fb[superscript - 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[superscript -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. Keywords: Invariant Mass, Systematic Uncertainty, Primary Vertex, Semileptonic Decay, Combinatorial Background
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1140/EPJC/S10052-016-4250-2
