@article{10902/28366,
year = {2012},
month = {10},
url = {https://hdl.handle.net/10902/28366},
abstract = {We report a measurement of the bottom-strange meson mixing phase βs using the time evolution of B0s→J/ψ(→μ+μ−)ϕ(→K+K−) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at √s=1.96  TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6  fb−1 of integrated luminosity. We report confidence regions in the two-dimensional space of βs and the B0s decay-width difference 
ΔΓs and measure βs∈[−π/2,−1.51]∪[−0.06,0.30]∪[1.26,π/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of 
βs, we also determine ΔΓs=0.068±0.026(stat)±0.009(syst)  ps−1 and the mean B0s lifetime 
τs=1.528±0.019(stat)±0.009(syst)  ps, which are consistent and competitive with determinations by other experiments.},
organization = {We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions.
This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian
Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC).},
publisher = {American Physical Society},
publisher = {Physical Review Letters, 2012, 109(17), 171802},
title = {Measurement of the bottom-strange meson mixing phase in the full CDF data set},
author = {Aaltonen, Timo Antero and Álvarez González, Bárbara and Casal Laraña, Bruno and Cuevas Maestro, Francisco Javier and Gómez Gramuglio, Gervasio and Palencia Cortezón, José Enrique and Rodrigo Anoro, Teresa and Ruiz Jimeno, Alberto and Scodellaro, Luca and Vila Álvarez, Iván  and Vilar Cortabitarte, Rocío and Vizán García, Jesús Manuel},
}