128,584 research outputs found

    Ganz neu korrigierter Kalender

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    Gestellt durch Leonhart Straub, zu S. GallenImpressum nach Kolophon: "Getruckt zu S. Gallen/ bey Leonhart Straub"Signaturen: A-B⁸In Rot und Schwarz gedrucktTiteleinfassung, Titelholzschnit

    Ganz neu korrigierter Kalender

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    durch Leonhart Straub Sangallensem Mathemat. für das Jahr. M.D.LXXXVSignaturen: A-B⁸In Rot und Schwarz gedrucktTiteleinfassung, Titelholzschnit

    A new light particle in B decays?

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    We investigate the possibility whether the tensions with SM expectations observed in several b→sll transitions, including hints for lepton flavour non-universality, could be due to the decay of B into a new light resonance. We find that qualitative agreement with the data can be obtained with a light vector resonance dominantly decaying invisibly. This scenario predicts a shift in the muon anomalous magnetic moment that could explain the long-standing discrepancy. The most stringent constraint comes from searches for B decays with missing energy. A striking prediction is a strong q2 dependence of the lepton flavour universality ratios RK and RKjavax.xml.bind.JAXBElement@654d8073 that should allow to clearly confirm or rule out this possibility experimentally. We also comment on the possible connection of the invisible decay product with Dark Matter

    1987 -- Correspondence, Miscellaneous -- letter, 1987-02-17

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    Letter from Straub F., Bruno to Sabin, Albert B. dated 1987-02-17.Sabin Collection Fair Use Policy</a

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Duets - Don Mus.Ms. 1864 : vl (2); E|b

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    StraubQuelle: manuscript. - Provenienz: Fürstlich Fürstenbergische Hofbibliothek, Donaueschingenduetto Ex Eb | â | Violinò Primo | Violinò Secondo | o ve Basso adlibitu | Seg Straub Virtuos

    Model-Independent Constraints on New Physics in bsb \to s Transitions

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    We provide a comprehensive model-independent analysis of rare decays involving the b --> s transition to put constraints on dimension-six Delta(F)=1 effective operators. The constraints are derived from all the available up-to-date experimental data from the B-factories, CDF and LHCb. The implications and future prospects for observables in b --> s l+l- and b --> s nu nu transitions in view of improved measurements are also investigated. The present work updates and generalises previous studies providing, at the same time, a useful tool to test the flavour structure of any theory beyond the SM.We provide a comprehensive model-independent analysis of rare decays involving the b --> s transition to put constraints on dimension-six Delta(F)=1 effective operators. The constraints are derived from all the available up-to-date experimental data from the B-factories, CDF and LHCb. The implications and future prospects for observables in b --> s l+l- and b --> s nu nu transitions in view of improved measurements are also investigated. The present work updates and generalises previous studies providing, at the same time, a useful tool to test the flavour structure of any theory beyond the SM

    (Appendix 1) Element analyses of individual glasses from ODP Hole 125-782A

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    For major elements and B concentrations and isotope ratios see Straub and Layne (2003) datasets: doi:10.1594/PANGAEA.708583. Numerical ages of tephra are based on calcareous nannofossil stratigraphy Xu and Wise (1992, doi:10.2973/odp.proc.sr.125.142.1992). Radiogenic isotopes of Sr, Nd and Pb were determined on handpicked, acid-leached particle separates (Schmidt 2001
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