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1826201686097526784
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MIT
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© 2016 CERN for the benefit of the LHCb Collaboration. 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/c2are considered. This region is dominated by the ρ0and ω resonances. The branching fraction in this range is measured to beB(D0→K-π+μ+μ-)=(4.17±0.12(stat)±0.40(syst))×10-6. 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.
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2024-09-23T11:55:25Z
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Article
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mit-1721.1/133706
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Massachusetts Institute of Technology
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English
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2024-09-23T11:55:25Z
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2021
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Elsevier BV
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dspace
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mit-1721.1/1337062022-04-01T17:20:48Z First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum © 2016 CERN for the benefit of the LHCb Collaboration. 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/c2are considered. This region is dominated by the ρ0and ω resonances. The branching fraction in this range is measured to beB(D0→K-π+μ+μ-)=(4.17±0.12(stat)±0.40(syst))×10-6. 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. 2021-10-27T19:56:17Z 2021-10-27T19:56:17Z 2016 2021-04-05T16:38:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133706 Aaij, R., et al. "First Observation of the Decay D0?K-?+?+?- in the ?0-O Region of the Dimuon Mass Spectrum." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 757 (2016): 558-67. en 10.1016/J.PHYSLETB.2016.04.029 Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier
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| spellingShingle |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title_full |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title_fullStr |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title_full_unstemmed |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title_short |
First observation of the decay D0→K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
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| title_sort |
first observation of the decay d0 k π μ μ in the ρ0 ω region of the dimuon mass spectrum
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| url |
https://hdl.handle.net/1721.1/133706
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