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Measurement of the Bs0–B¯s0 oscillation frequency Δms in Bs0→Ds−(3)π decays
- Source :
- Physics Letters B. 709:177-184
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- The B-s(0)-(B) over bar (0)(s) oscillation frequency Delta m(s) is measured with 36 pb(-1) of data collected in pp collisions at = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B-s(0) -> D-s(-) pi(+) and B-s(0) -> D-s(-) pi(+)pi(-)pi(+) signal decays are reconstructed, with average decay time resolutions of 44 fs and 36 fs, respectively. An oscillation signal with a statistical significance of 4.6 sigma is observed. The measured oscillation frequency is Delta m(s) = 17.63 +/- 0.11 (stat) +/-0.02 (syst)ps(-1) (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Details
- ISSN :
- 03702693
- Volume :
- 709
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........6e840ed447e1d8b395f296d367c34ae6
- Full Text :
- https://doi.org/10.1016/j.physletb.2012.02.031