First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum
.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...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal article |
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Elsevier
2016
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| _version_ | 1797062673244880896 |
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| author | Cheung, S Evans, T Gandini, P Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Lupton, O Malde, S Nandi, A Topp-Jorgenson, S Wilkinson, G The LHCb Collaboration |
| author_facet | Cheung, S Evans, T Gandini, P Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Lupton, O Malde, S Nandi, A Topp-Jorgenson, S Wilkinson, G The LHCb Collaboration |
| author_sort | Cheung, S |
| collection | OXFORD |
| description | .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 B(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. |
| first_indexed | 2024-03-06T20:48:55Z |
| format | Journal article |
| id | oxford-uuid:36e6fbfd-c58e-481f-a1f6-53f17bdfc83b |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:48:55Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:36e6fbfd-c58e-481f-a1f6-53f17bdfc83b2022-03-26T13:40:46ZFirst observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrumJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:36e6fbfd-c58e-481f-a1f6-53f17bdfc83bSymplectic Elements at OxfordElsevier2016Cheung, SEvans, TGandini, PHadavizadeh, THarnew, NHill, DJalocha, PJohn, MLupton, OMalde, SNandi, ATopp-Jorgenson, SWilkinson, GThe 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/c2 are considered. This region is dominated by the ρ0 and ω resonances. The branching fraction in this range is measured to B(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. |
| spellingShingle | Cheung, S Evans, T Gandini, P Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Lupton, O Malde, S Nandi, A Topp-Jorgenson, S Wilkinson, G The LHCb Collaboration First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| title | First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| title_full | First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| title_fullStr | First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| title_full_unstemmed | First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| title_short | First observation of the decay D0 → K−π+μ+μ− in the ρ0–ω region of the dimuon mass spectrum |
| 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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