Observation of D0 Meson Decays to π+π-μ+μ- and K+K-μ+μ- Final States

(LHCb Collaboration)

Producció científica: Article en revista indexadaArticleAvaluat per experts

30 Cites (Scopus)

Resum

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.

Idioma originalAnglès
Número d’article181805
RevistaPhysical Review Letters
Volum119
Número18
DOIs
Estat de la publicacióPublicada - 31 d’oct. 2017

Fingerprint

Navegar pels temes de recerca de 'Observation of D0 Meson Decays to π+π-μ+μ- and K+K-μ+μ- Final States'. Junts formen un fingerprint únic.

Com citar-ho