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

Chi tiết về thư mục
Parent link:Physical Review Letters: Scientific Journal.— , 1958-
Vol. 119, iss. 18.— 2017.— [181805, 10 p.]
Tác giả của công ty: Национальный исследовательский Томский политехнический университет (ТПУ) Управление проректора по образовательной деятельности (УОД) Управление международной образовательной деятельности (УМОД) Центр развития международного партнерства (ЦеРаМП)
Tác giả khác: Aaij R. Roel, Adeva B. Bernardo, Adinolfi M., Ajaltouni Z. J. Zeina, Akar S. Simon, Vagner A. R. Aleksandr Rudolfovich
Tóm tắt: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
Ngôn ngữ:Tiếng Anh
Được phát hành: 2017
Những chủ đề:
электронный ресурс
труды учёных ТПУ
Truy cập trực tuyến:https://doi.org/10.1103/PhysRevLett.119.181805
Định dạng: Điện tử Chương của sách
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657612
Miêu tả
Tóm tắt: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
DOI:10.1103/PhysRevLett.119.181805

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