Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states
The first observation of the D0→π+π−μ+μ− and D0→K+K−μ+μ− 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 normalizat...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Journal article |
| Idioma: | English |
| Publicado em: |
American Physical Society
2017
|
| _version_ | 1826307136582320128 |
|---|---|
| author | Aaij, R Adeva, B Adinolfi, M Bjørn, M Evans, T Gandini, P Cazon, BR Hadavizadeh, T Hancock, TH Harnew, N Hill, D Jalocha, PG John, MJJ Jurik, NP Malde, S Nandi, AK Pullen, HL Rollings, A Vesterinen, M Wilkinson, GR LHCb collaboration |
| author_facet | Aaij, R Adeva, B Adinolfi, M Bjørn, M Evans, T Gandini, P Cazon, BR Hadavizadeh, T Hancock, TH Harnew, N Hill, D Jalocha, PG John, MJJ Jurik, NP Malde, S Nandi, AK Pullen, HL Rollings, A Vesterinen, M Wilkinson, GR LHCb collaboration |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | The first observation of the D0→π+π−μ+μ− and D0→K+K−μ+μ− 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 D0→K−π+[μ+μ−]ρ0/ω, where the two muons are consistent with coming from the decay of a ρ0 or ω meson. The results are B(D0→π+π−μ+μ−)=(9.64±0.48±0.51±0.97)×10^−7 and B(D0→K+K−μ+μ−)=(1.54±0.27±0.09±0.16)×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. |
| first_indexed | 2024-03-07T06:58:25Z |
| format | Journal article |
| id | oxford-uuid:feec6b49-7a1b-4279-bd3b-161d9971ffb7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:58:25Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:feec6b49-7a1b-4279-bd3b-161d9971ffb72022-03-27T13:40:44ZObservation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final statesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:feec6b49-7a1b-4279-bd3b-161d9971ffb7EnglishSymplectic Elements at OxfordAmerican Physical Society2017Aaij, RAdeva, BAdinolfi, MBjørn, MEvans, TGandini, PCazon, BRHadavizadeh, THancock, THHarnew, NHill, DJalocha, PGJohn, MJJJurik, NPMalde, SNandi, AKPullen, HLRollings, AVesterinen, MWilkinson, GRLHCb collaborationThe first observation of the D0→π+π−μ+μ− and D0→K+K−μ+μ− 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 D0→K−π+[μ+μ−]ρ0/ω, where the two muons are consistent with coming from the decay of a ρ0 or ω meson. The results are B(D0→π+π−μ+μ−)=(9.64±0.48±0.51±0.97)×10^−7 and B(D0→K+K−μ+μ−)=(1.54±0.27±0.09±0.16)×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. |
| spellingShingle | Aaij, R Adeva, B Adinolfi, M Bjørn, M Evans, T Gandini, P Cazon, BR Hadavizadeh, T Hancock, TH Harnew, N Hill, D Jalocha, PG John, MJJ Jurik, NP Malde, S Nandi, AK Pullen, HL Rollings, A Vesterinen, M Wilkinson, GR LHCb collaboration Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title | Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title_full | Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title_fullStr | Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title_full_unstemmed | Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title_short | Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states |
| title_sort | observation of d0 meson decays to π π μ μ and k k μ μ final states |
| work_keys_str_mv | AT aaijr observationofd0mesondecaystoppmmandkkmmfinalstates AT adevab observationofd0mesondecaystoppmmandkkmmfinalstates AT adinolfim observationofd0mesondecaystoppmmandkkmmfinalstates AT bjørnm observationofd0mesondecaystoppmmandkkmmfinalstates AT evanst observationofd0mesondecaystoppmmandkkmmfinalstates AT gandinip observationofd0mesondecaystoppmmandkkmmfinalstates AT cazonbr observationofd0mesondecaystoppmmandkkmmfinalstates AT hadavizadeht observationofd0mesondecaystoppmmandkkmmfinalstates AT hancockth observationofd0mesondecaystoppmmandkkmmfinalstates AT harnewn observationofd0mesondecaystoppmmandkkmmfinalstates AT hilld observationofd0mesondecaystoppmmandkkmmfinalstates AT jalochapg observationofd0mesondecaystoppmmandkkmmfinalstates AT johnmjj observationofd0mesondecaystoppmmandkkmmfinalstates AT juriknp observationofd0mesondecaystoppmmandkkmmfinalstates AT maldes observationofd0mesondecaystoppmmandkkmmfinalstates AT nandiak observationofd0mesondecaystoppmmandkkmmfinalstates AT pullenhl observationofd0mesondecaystoppmmandkkmmfinalstates AT rollingsa observationofd0mesondecaystoppmmandkkmmfinalstates AT vesterinenm observationofd0mesondecaystoppmmandkkmmfinalstates AT wilkinsongr observationofd0mesondecaystoppmmandkkmmfinalstates AT lhcbcollaboration observationofd0mesondecaystoppmmandkkmmfinalstates |