@Article{LHCbCollaborationAaij_etal2017, author="LHCb Collaboration (Aaij, R. et al and Garcia Martin, L. M. and Henry, L. and Martinez-Vidal, F. and Oyanguren, A. and Remon Alepuz, C. and Ruiz Valls, P. and Ruiz Vidal, J. and Sanchez Mayordomo, C.", title="Observation of D-0 meson decays to pi(+) pi(-) mu(+) mu(-) and K+ K- mu(+) mu(-) final states", journal="Physical Review Letters", year="2017", publisher="Amer Physical Soc", volume="119", number="18", pages="181805 - 10pp", abstract="The first observation of the D-0 -> pi(+) pi(-) mu(+) mu(-) and D-0 -> K+ K- mu(+) mu(-) decays is reported using a sample of proton-proton collisions collected by LHCb at a center-of-mass energy of 8 TeV, and corresponding to 2 fb(-1) of integrated luminosity. The corresponding branching fractions are measured using as normalization the decay D-0 -> K- pi(+) [mu(+) mu(-)](rho 0/omega), where the two muons are consistent with coming from the decay of a rho(0) or omega meson. The results are B(D-0 -> pi(+) pi(-) mu(+) mu(-)) = (9.64 +/- 0.48 +/- 0.51 +/- 0.97) x 10(-7) and B(D-0 -> K+ K- mu(+) mu(-)) = (1.54 +/- 0.27 +/- 0.09 +/- 0.16) x 10(-7), where the uncertainties are statistical, systematic, and due to the limited knowledge of the normalization branching fraction. The dependence of the branching fraction on the dimuon mass is also investigated.", optnote="WOS:000414105700004", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3411), last updated on Fri, 22 Dec 2017 18:24:57 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.119.181805", opturl="http://arxiv.org/abs/1707.08377", opturl="https://doi.org/10.1103/PhysRevLett.119.181805", archivePrefix="arXiv", eprint="1707.08377", language="English" }