Observation of D0 Meson Decays to π+π−μ+μ− and K+K−μ+μ−Final States; Physical Review Letters; Vol. 119, iss. 18

Observation of D0 Meson Decays to π+π−μ+μ− and K+K−μ+μ−Final States; Physical Review Letters; Vol. 119, iss. 18

Bibliografiske detaljer
Parent link:Physical Review Letters: Scientific Journal.— , 1958-
Vol. 119, iss. 18.— 2017.— [181805, 10 p.]
Institution som forfatter: Национальный исследовательский Томский политехнический университет (ТПУ) Управление проректора по образовательной деятельности (УОД) Управление международной образовательной деятельности (УМОД) Центр развития международного партнерства (ЦеРаМП)
Andre forfattere: Aaij R. Roel, Adeva B. Bernardo, Adinolfi M., Ajaltouni Z. J. Zeina, Akar S. Simon, Vagner A. R. Aleksandr Rudolfovich
Summary:Title screen
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.
Режим доступа: по договору с организацией-держателем ресурса
Sprog:engelsk
Udgivet: 2017
Fag:
электронный ресурс
труды учёных ТПУ
Online adgang:https://doi.org/10.1103/PhysRevLett.119.181805
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657612

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