Publication
Title
Measurement of the $B_{s}^{0}-\overline{B}_{s}^{0}$ oscillation frequency
Author
Institution/Organisation
CDF Collaboration
Abstract
 We present the first precise measurement of the Bs0-B̅ s0 oscillation frequency Δms. We use 1  fb-1 of data from pp̅ collisions at √s=1.96   TeV collected with the CDF II detector at the Fermilab Tevatron. The sample contains signals of 3600 fully reconstructed hadronic Bs decays and 37 000 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 consistent with Bs0-B̅ s0 oscillations. The probability that random fluctuations could produce a comparable signal is 0.2%. Under the hypothesis that the signal is due to Bs0-B̅ s0 oscillations, we measure Δms=17.31-0.18+0.33(stat)±0.07(syst)  ps-1 and determine |Vtd/Vts|=0.208-0.002+0.001(expt)-0.006+0.008(theor).
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
Publication
New York, N.Y. : 2006
ISSN
0031-9007
Volume/pages
97:6(2006), p. 062003,1-062003,7
ISI
000239690900014
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Publication type Subject Affiliation Publications with a UAntwerp address