@Article{LHCbCollaborationAaij_etal2016, author="LHCb Collaboration (Aaij, R. et al and Martinez-Vidal, F. and Oyanguren, A. and Ruiz Valls, P. and Sanchez Mayordomo, C.", title="First Observation of D-0 -- (D)over-bar(0) Oscillations in D-0 -> K+pi(-)pi(+)pi(-) Decays and Measurement of the Associated Coherence Parameters", journal="Physical Review Letters", year="2016", publisher="Amer Physical Soc", volume="116", number="24", pages="241801 - 10pp", abstract="Charm meson oscillations are observed in a time-dependent analysis of the ratio of D-0 -> K+pi(-)pi(+)pi(-) to D-0 -> K-pi(+)pi(-)pi(+) decay rates, using data corresponding to an integrated luminosity of 3.0 fb(-1) recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes r(D)(K3 pi) and the product of the coherence factor R-D(K3 pi) and a charm mixing parameter y{\textquoteright}(K3 pi). The constraints measured are r(D)(K3 pi) = (5.67 +/- 0.12) x 10(-2), which is the most precise determination to date, and R-D(K3 pi) y{\textquoteright}(K3 pi) = (0.3 +/- 1.8) x 10(-3), which provides useful input for determinations of the CP-violating phase gamma in B-+/- -> DK +/-, D -> K--/+pi(+/-)pi(-/+)pi(+/-) decays. The analysis also gives the most precise measurement of the D-0 -> K+pi(-)pi(+)pi(-) branching fraction, and the first observation of D-0-(D) over bar (0) oscillations in this decay mode, with a significance of 8.2 standard deviations.", optnote="WOS:000378059500006", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2734), last updated on Sat, 16 Jul 2016 11:49:59 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.116.241801", opturl="http://arxiv.org/abs/1602.07224", opturl="https://doi.org/10.1103/PhysRevLett.116.241801", archivePrefix="arXiv", eprint="1602.07224", language="English" }