The B0s -B0s(bar) oscillation frequency Delta(ms) is measured with 36 pb-1 of data collected in pp collisions at sqrt(s) = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B0s-> D-s pi+ and B0s-> 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 signicance of 4.6 is observed. The measured oscillation frequency is Delta(ms) = 17.63 0.11 (stat) 0.02 (syst) ps-1.
Measurement of the B-s(0)-(B)over-bar(s)(0) oscillation frequency Delta m(s) in B-s(0) -> D-s(-)(3)pi decays
AURIEMMA, Giulio;SATRIANO, Celestina;
2012-01-01
Abstract
The B0s -B0s(bar) oscillation frequency Delta(ms) is measured with 36 pb-1 of data collected in pp collisions at sqrt(s) = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B0s-> D-s pi+ and B0s-> 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 signicance of 4.6 is observed. The measured oscillation frequency is Delta(ms) = 17.63 0.11 (stat) 0.02 (syst) ps-1.File in questo prodotto:
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