# First observation of the decay $D^{0} ightarrow K^{-}π^{ }μ^{ }μ^{-}$ in the $ρ^{0}$-$ω$ region of the dimuon mass spectrum

First observation of the decay $D^{0} ightarrow K^{-}π^{ }μ^{ }μ^{-}$ in the $ρ^{0}$-$ω$ region of the dimuon mass spectrum - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Reference: LHCb Collaboration, Aaij, R, Beteta, CA et al., (2016). First observation of the decay $D^{0}\rightarrow K^{-}π^{+}μ^{+}μ^{-}$ in the $ρ^{0}$-$ω$ region of the dimuon mass spectrum. Physics Letters B, 757, 558-567.Citable link to this page:

First observation of the decay $D^{0}\rightarrow K^{-}π^{+}μ^{+}μ^{-}$ in the $ρ^{0}$-$ω$ region of the dimuon mass spectrum

Abstract: A study of the decay $D^{0}\rightarrow K^{-}\pi^{+}\mu^{+}\mu^{-}$ isperformed using data collected by the LHCb detector in proton-proton collisionsat a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosityof 2.0 fb$^{-1}$. Decay candidates with muon pairs that have an invariant massin the range 675--875 MeV$/c^2$ are considered. This region is dominated by the$\rho^{0}$ and $\omega$ resonances. The branching fraction in this range ismeasured to be ${\cal B}$($D^{0}\rightarrow K^{-}\pi^{+}\mu^{+}\mu^{-}$ ) = $(4.17 \pm 0.12(stat) \pm 0.40(syst) )\times10^{-6}$. This is the firstobservation of the decay $D^{0}\rightarrow K^{-}\pi^{+}\mu^{+}\mu^{-}$. Itsbranching fraction is consistent with the value expected in the Standard Model.

Peer Review status:Peer reviewedPublication status:PublishedVersion:Publisher's version Funder: Sponsoring Consortium for Open Access Publishing in Particle Physics   Funder: Science and Technology Facilities Council   Funder: Royal Society   Funder: Royal Commission for the Exhibition of 1851   Notes:© 2016 CERN for the benefit of the LHCb Collaboration.

Bibliographic Details

Publisher: Elsevier

Publisher Website: http://www.elsevier.com/

Journal: Physics Letters Bsee more from them

Publication Website: http://www.journals.elsevier.com/physics-letters-b/

Issue Date: 2016-06-10

pages:558-567Identifiers

Urn: uuid:2fa3ecb2-25e2-4233-8b7c-20116ec82da5

Source identifier: 572430

Eissn: 1873-2445

Doi: https://doi.org/10.1016/j.physletb.2016.04.029

Issn: 0370-2693 Item Description

Type: Journal article;

Version: Publisher's versionKeywords: hep-ex hep-ex Tiny URL: pubs:572430

Relationships

Autor: LHCb Collaboration - - - Aaij, R - - - Beteta, CA - - - Adeva, B - - - Adinolfi, M - - - Affolder, A - - - Ajaltouni, Z - - - Aka

Fuente: https://ora.ox.ac.uk/objects/uuid:2fa3ecb2-25e2-4233-8b7c-20116ec82da5

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