First observation of the decay D-0 -> K-pi(+)mu(+)mu(-) in the rho(0)-omega region of the dimuon mass spectrum
File(s)
OA Location
Author(s)
Aaij, R
Beteta, CA
Adeva, B
Adinolfi, M
Affolder, A
Type
Journal Article
Abstract
A study of the decay D0→K−π+μ+μ− is performed using data collected by the LHCb detector in proton–proton collisions at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb−1. Decay candidates with muon pairs that have an invariant mass in the range 675–875 MeV/c2 are considered. This region is dominated by the ρ0 and ω resonances. The branching fraction in this range is measured to be

FORMULA

This is the first observation of the decay D0→K−π+μ+μ−. Its branching fraction is consistent with the value expected in the Standard Model.
Date Issued
2016-06-10
Date Acceptance
2016-04-14
Citation
Physics Letters B, 2016, 757, pp.558-567
URI
DOI
ISSN
0370-2693
Publisher
Elsevier: SCOAP3
Start Page
558
End Page
567
Journal / Book Title
Physics Letters B
Volume
757
Copyright Statement
© 2016 CERN for the benefit of the LHCb Collaboration. Published by Elsevier B.V. This is an open access
article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
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Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
TOOL
Publication Status
Published