167,321 research outputs found

    Neutrino Factory Superbeam

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    We discuss the optimization of a neutrino factory for large \sin^2 2 \theta_{13}, where we assume minimum effort on the accelerator side. This implies that we use low muon energies for the price of an optimized detection system. We demonstrate that such a neutrino factory performs excellent if combined with the electron neutrino appearance channel. Instead of the platinum channel operated with the muon neutrinos from the muon decays, we propose to use the initial superbeam from the decaying pions and kaons, which might be utilized at little extra effort. Since we assume out-of-phase bunches arriving at the same detector, we do not require electron charge identification. In addition, we can choose the proton energy such that we obtain a synergistic spectrum peaking at lower energies. We find that both the superbeam and the neutrino factory beam should used at the identical baseline to reduce matter density uncertainties, possibly with the same detector. This effectively makes the configuration a single experiment, which we call ``neutrino factory superbeam''. We demonstrate that this experiment outperforms a low-energy neutrino factory or a wide band beam alone beyond a simple addition of statistics.Comment: 7 pages, 5 figures, 1 tabl

    Neutrino oscillation physics with a FNAL proton driver

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    We discuss the need of a proton driver for the Fermilab neutrino oscillation program, as well as its role in the global context.Comment: 3 pages, 1 figure; Talk given at the NuFact 05 workshop, June 21-26, Frascati, Ital

    Degrees of Belief as Basis for Scientific Reasoning?

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    Bayesianism is the claim that scientific reasoning is\ud probabilistic, and that probabilities are adequately interpreted\ud as an agent"s actual subjective degrees of belief\ud measured by her betting behaviour.\ud Confirmation is one important aspect of scientific reasoning.\ud The thesis of this paper is the following: Given that\ud scientific reasoning (and thus confirmation) is at all\ud probabilistic, the subjective interpretation of probability has\ud to be given up in order to get right confirmation, and thus\ud scientific reasoning in general

    Establishing Local Certification Bodies In Developing and Transition Economies

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    There are certification bodies from Western countries offering their services all over the world providing efficient, reliable and qualified services. Nevertheless there are good arguments for establishing local certification bodies in developing and transition economies. FiBL has been cooperating with local certification bodies in South-Eastern Europe (Albinspekt in Albania, Balkan Biocert in Bulgaria and Macedonia, Ecoinspect in Romania) and Asia (Biocert in Indonesia, Indocert in India, LibanCert in Lebanon and OFDC in China). These certification bodies are part of the local organic movement either by a multiple ownership reflecting the sector or by involving the sector in committees. The following report describes the opportunities but also the challenges of setting up local organic certification bodies

    Information Theoretic Authentication and Secrecy Codes in the Splitting Model

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    In the splitting model, information theoretic authentication codes allow non-deterministic encoding, that is, several messages can be used to communicate a particular plaintext. Certain applications require that the aspect of secrecy should hold simultaneously. Ogata-Kurosawa-Stinson-Saido (2004) have constructed optimal splitting authentication codes achieving perfect secrecy for the special case when the number of keys equals the number of messages. In this paper, we establish a construction method for optimal splitting authentication codes with perfect secrecy in the more general case when the number of keys may differ from the number of messages. To the best knowledge, this is the first result of this type.Comment: 4 pages (double-column); to appear in Proc. 2012 International Zurich Seminar on Communications (IZS 2012, Zurich
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