133,178 research outputs found
Measurement of branching fractions and CP violating charge asymmetries in B+ ---> RHO+ PI0 AND B+ ---> RHO0 PI+ decays, and search for B0 ---> RHO0 PI0
No full textWe present measurements of branching fractions and charge asymmetries in -meson decays to , and . The data sample comprises decays collected with the detector at the PEP-II asymmetric-energy Factory at SLAC. We find the charge-averaged branching fractions and , and we set a 90% confidence-level upper limit . We measure the charge asymmetries and
Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at sqrt(s) = 10.6 GeV
No full textNew measurements of Ds+ and Ds*+ meson production rates from B decays and from qqbar continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off resonance, we find the inclusive branching fractions BR(B --> Ds+ X) = (10.93+/-0.19+/-0.58+/-2.73)% and BR(B --> Ds*+ X) = (7.9+/-0.8+/-0.7+/-2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+ --> phi pi+ branching fraction uncertainty. The branching fractions SumBR(B --> Ds(*)+ Dbar(*)) = (5.07+/-0.14+/-0.30+/-1.27)% and SumBR(B --> Ds*+ Dbar(*)) = (4.1+/-0.2+/-0.4+/-1.0)% are determined from the Ds(*)+ momentum spectra
Aubert, Alfred B.
No full textAlfred B. Aubert - Professor of Chemistry. Chemistry building named for him.https://digitalcommons.library.umaine.edu/univ_photos/1589/thumbnail.jp
Aubert, Alfred B.
No full textAlfred B. Aubert - Professor of Chemistry. Chemistry building named for him.https://digitalcommons.library.umaine.edu/univ_photos/1588/thumbnail.jp
Aubert, Alfred B.
No full textAlfred B. Aubert - Professor of Chemistry. Chemistry building named for him.https://digitalcommons.library.umaine.edu/univ_photos/1586/thumbnail.jp
Aubert, Alfred B.
No full textAlfred B. Aubert - Professor of Chemistry. Chemistry building named for him. Taught from 1874 to 1909.https://digitalcommons.library.umaine.edu/univ_photos/1590/thumbnail.jp
Measurement of branching fractions for exclusive B decays to charmonium final states
No full textWe report branching fraction measurements for exclusive decays of charged and neutral B mesons into two-body final states containing a charmonium meson. We use a sample of 22.72+/-0.36 million BBbar events collected between October 1999 and October 2000 with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. The charmonium mesons considered here are J/ψ, ψ(2S), and χc1, and the light meson in the decay is either a K, K*, or π0
Evidence for the rare decay B ---> K* l+ l- and measurement of the B ---> K l+ l- branching fraction
No full textWe present evidence for the flavor-changing neutral current decay and a measurement of the branching fraction for the related process , where is either an or pair. These decays are highly suppressed in the Standard Model, and they are sensitive to contributions from new particles in the intermediate state. The data sample comprises decays collected with the Babar detector at the PEP-II storage ring. Averaging over isospin and lepton flavor, we obtain the branching fractions and , where the uncertainties are statistical and systematic, respectively. The significance of the signal is over , while for it is
Measurement of Ds+ and Ds*+ production in B meson decays and from continuum e+e- annihilation at sqrt(s) = 10.6 GeV
No full textNew measurements of Ds+ and Ds*+ meson production rates from B decays and from qqbar continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off resonance, we find the inclusive branching fractions BR(B --> Ds+ X) = (10.93+/-0.19+/-0.58+/-2.73)% and BR(B --> Ds*+ X) = (7.9+/-0.8+/-0.7+/-2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+ --> phi pi+ branching fraction uncertainty. The branching fractions SumBR(B --> Ds(*)+ Dbar(*)) = (5.07+/-0.14+/-0.30+/-1.27)% and SumBR(B --> Ds*+ Dbar(*)) = (4.1+/-0.2+/-0.4+/-1.0)% are determined from the Ds(*)+ momentum spectra
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
