@Article{LHCbCollaborationAaij_etal2014,
author="LHCb Collaboration (Aaij, R. et al
and Martinez-Vidal, F.
and Oyanguren, A.
and Ruiz Valls, P.
and Sanchez Mayordomo, C.",
title="Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays",
journal="Physics Letters B",
year="2014",
publisher="Elsevier Science Bv",
volume="736",
pages="446--454",
abstract="Measurements of the effective lifetimes in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays are presented using 1.0 fb(-1)of pp collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The analysis uses a data-driven approach to correct for the decay time acceptance. The measured effective lifetimes are tau(Bs0 -> K+K-) = 1.407 +/- 0.016 (stat) +/- 0.007 (syst) ps, tau(Bs0 -> K+pi-) = 1.524 +/- 0.011 (stat) +/- 0.004 (syst) ps, tau(Bs0 ->pi+K-) = 1.60 +/- 0.06 (stat) +/- 0.01 (syst) ps. This is the most precise determination to date of the effective lifetime in the B-s(0) -> K+K- decay and provides constraints on contributions from physics beyond the Standard Model to the B-s(0) mixing phase and the width difference Delta Gamma(s).",
optnote="WOS:000341487800066",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1940), last updated on Fri, 17 Oct 2014 18:05:48 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2014.07.051",
opturl="http://arxiv.org/abs/1406.7204",
opturl="https://doi.org/10.1016/j.physletb.2014.07.051",
archivePrefix="arXiv",
eprint="1406.7204",
language="English"
}