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+ ; B s 0→D s -π +π -π + signal decays are reconstructed, with average decay time resolutions of 44 fs ; 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. © 2012 CERN.

Measurement of the B s 0-B - s 0 oscillation frequency δm s in B s 0→D s -(3)π decays

PAPPAGALLO, MARCO IGNAZIO;
2012-01-01

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+ ; B s 0→D s -π +π -π + signal decays are reconstructed, with average decay time resolutions of 44 fs ; 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. © 2012 CERN.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/179819
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