Title
Observation of <tex>$B_{s}^{0}-\overline{B}_{s}^{0}$</tex> oscillations Observation of <tex>$B_{s}^{0}-\overline{B}_{s}^{0}$</tex> oscillations
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
97(2006) :24 , p. 242003,1-242003,8
ISSN
0031-9007
ISI
000242888700016
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report the observation of Bs0-B&#773; s0 oscillations from a time-dependent measurement of the Bs0-B&#773; s0 oscillation frequency Δms. Using a data sample of 1  fb-1 of pp&#773; collisions at √s=1.96   TeV collected with the CDF II detector at the Fermilab Tevatron, we find signals of 5600 fully reconstructed hadronic Bs decays, 3100 partially reconstructed hadronic Bs decays, and 61 500 partially reconstructed semileptonic Bs decays. We measure the probability as a function of proper decay time that the Bs decays with the same, or opposite, flavor as the flavor at production, and we find a signal for Bs0-B&#773; s0 oscillations. The probability that random fluctuations could produce a comparable signal is 8×10-8, which exceeds 5σ significance. We measure Δms=17.77±0.10(stat)±0.07(syst)  ps-1 and extract |Vtd/Vts|=0.2060±0.0007(Δms)-0.0060+0.0081(Δmd+theor).
Full text (open access)
https://repository.uantwerpen.be/docman/irua/ab6b1b/86e5a337.pdf
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