TIPOS D0 HERBÁRIO D0 JARDIM BOTÂNICO D0 RIO DE JANEIRO MELASTOMACEAE - III
نویسندگان
چکیده
منابع مشابه
Search for D0−D0 Mixing
We report on a search for D0−D0 mixing made by a study of the ‘wrong-sign’ process D →K+π−. The data come from an integrated luminosity of ee collisions at √ s ≈ 10GeV consisting of 9.0 fb, recorded with the CLEO-II.V detector. We measure the time-integrated rate of the ‘wrong-sign’ process D → Kπ, relative to that of the Cabibbo-favored process D →K+π−, to be Rws = (0.34 ± 0.07 ± 0.06)%. We st...
متن کاملD0-D0 Mixing at BABAR
measure the rate of mixing with the observable yCP = (τKπ/τKK)− 1, where τKK and τKπ are respectively the mean lifetimes of CP-even D0 → K+K− and CP-mixed D0 → K−π+ decays. A new BABAR measurement of the mixing parameter yCP is presented for the first time in this conference. This new result is in good agreement with a previous BABAR measurement, obtained from a sample of D∗+ → D0π+ events, whe...
متن کاملEvidence for D0-D0 mixing.
We observe evidence for D(0)-D(0) mixing by measuring the difference in the apparent lifetime when a D(0) meson decays to the CP eigenstates K(+)K(-) and pi(+)pi(-) and when it decays to the final state K(-)pi(+). We find the relative difference of the lifetimes y(CP) to be [1.31+/-0.32(stat)+/-0.25(syst)]%, 3.2 standard deviations from zero. We also search for a CP asymmetry between D(0) and D...
متن کاملSearch for D0–D0 Mixing and Rare Charm Decays
Based on a dataset acquired by the BABAR experiment running on and near the Υ (4S) resonance from 1999-2002, an upper limit is set on the rate of D0–D0 mixing using the decay mode D∗+ → D0π+, followed by a semi-leptonic decay of the D0. Results are compared to previous BABAR analysis using hadronic decays. We also set limits on the flavor-changing neutral current decays D0 → e+e− (μ+μ−) and the...
متن کاملD0 Silicon Microstrip Tracker Sergey Burdin for D0 Collaboration
The D0 Run II silicon microstrip tracker (SMT) has 3 square meters of Si area. There are 792,576 channels read out by 6192 SVXIIe chips on 912 read out modules. The SMT provides track and vertex reconstruction capabilities over the full pseudorapidity coverage of the D0 detector. The full detector has been running successfully since April 2002. This presentation covers the experience in commiss...
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ژورنال
عنوان ژورنال: Rodriguésia
سال: 1980
ISSN: 2175-7860,0370-6583
DOI: 10.1590/2175-78601980325311