Measurement of the B <inf>s</inf><sup>0</sup>-B <sup>-</sup><inf>s</inf><sup>0</sup> oscillation frequency δm <inf>s</inf> in B <inf>s</inf><sup>0</sup>→D <inf>s</inf><sup>-</sup>(3)π decays
- R. Aaij,
- B. Adeva,
- M. Adinolfi,
- C. Adrover,
- A. Affolder,
- Z. Ajaltouni
- National Institute for Subatomic Physics,
- University of Santiago de Compostela,
- University of Bristol,
- CNRS,
- University of Liverpool,
- Université Clermont Auvergne
Publication metrics
Metrics
Abstract
The B s 0-B - s 0 oscillation frequency δm s is measured with 36 pb -1 of data collected in pp collisions at s=7TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B s 0→D s -π+ and B s 0→D s -π +π -π + signal decays are reconstructed, with average decay time resolutions of 44 fs and 36 fs, respectively. An oscillation signal with a statistical significance of 4.6σ is observed. The measured oscillation frequency is δm s=17.63±0.11(stat)±0.02(syst)ps -1.
Publication Information
Output type
Original language
EnglishPages from-to (Number of pages)
Pages 177-184 (8 pages)Journal (Volume, Issue Number)
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics (Volume 709, Issue 3)Publication milestones
- Published - 19/03/2012
Publication status
ISSN
0370-2693Publication IDs
- Scopus: 84862777712
- WOS: 000301758800009