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A precise measurement of the B[superscript 0] meson oscillation frequency

Author(s)
Ilten, Philip J; Williams, Michael
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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
Date issued
2016-07
URI
http://hdl.handle.net/1721.1/116510
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
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
ISSN
1434-6044
1434-6052

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