1,504 research outputs found

    Discovering SUSY with m02<0m_0^2 < 0 in the First LHC Physics Run

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    In minimal supergravity, the parameter space where the slepton is the LSP is usually neglected, because of strong constraints on charged dark matter. When the gravitino is the true LSP, this region avoids these constraints and offers spectacular collider signals. We investigate this scenario for the LHC and find that a large portion of the ignored mSugra parameter space can lead to discovery within the first physics run, with 1-4 fb1\text{fb}^{-1} of data. We find that there are regions where discovery is feasible with only 1 day of running

    Freedom of Religion and Belief in India and Australia: An Introductory Comparative Assessment of Two Federal Constitutional Democracies

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    This article considers the freedom of religion and belief (“free exercise”) in two secular federal constitutional democracies: India and Australia. Both constitutional systems emerged from the former British Empire and both continue in membership of the Commonwealth of Nations, which succeeded it. However, the similarities end there, for while both separate church and state, and protect free exercise, they do so in very different ways. On the one hand, the Indian Constitution contains express provisions which comprehensively deal with free exercise. On the other hand, while one finds what might appear a protection for free exercise in the Australian Constitution, that protection is far from comprehensive. Instead, unlike its Indian counterpart, the Australian federal democracy depends upon a piecemeal collection of Constitutional, legislative, and common law provisions which, when taken together, seem to achieve plenary protection for free exercise. Still, while India protects free exercise within a comprehensive constitutional framework, and while Australia does so in a disjointed and fragmentary way, both arrive at the same place: a constitutionalism characterized by secularism/separation of church and state combined with a corresponding comprehensive protection for free exercise

    Is Africa Integrated in the Global Economy?

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    The popular impression that Africa has not integrated into world trade, as suggested by the evolution in simple indicators, has been called into question recently by more formal analysis. This paper refines and generalizes this analysis and lends support to the popular view of disintegration, but only for countries in Francophone Africa. These countries are currently underexploiting their trading opportunities and have witnessed disintegration over time, a trend that is most pronounced in their trade with technologically advanced countries. There is some evidence, on the other hand, that countries in Anglophone Africa are reversing the trend of disintegration, particularly in their trade with advanced countries. Copyright 2003, International Monetary Fund

    The Muddles over Outsourcing

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    Critics have muddled the public debate over offshore outsourcing by using the term interchangeably to refer to altogether different phenomena such as on-line purchase of services, direct foreign investment and, sometimes, all imports. We argue that clarity requires distinguishing among these various phenomena and define outsourcing explicitly as the services trade at arm's length that does not require geographical proximity of the buyer and the seller—the so-called Mode 1 services in the WTO terminology—conducted principally via the electronic mediums such as the telephone, fax and Internet. The definition is appropriate because this is the phenomenon that is relatively new and scary in public consciousness and has fueled the recent “outsourcing” debate. Under this definition, the total number of the U.S. jobs outsourced annually is minuscule and is expected to remain so over the next decade, even on a gross basis (i.e., without adjusting for the jobs in-sourced from the U.S.). The fears that offshore outsourcing will lead to high-value jobs being replaced by low-value jobs down the road are also argued here to be implausible in view of several qualitative arguments to the contrary. We also demonstrate that offshore outsourcing of Mode 1 services raises no new analytical issues, contrary to what many fear. Thus, it leads to gains from trade (with the standard caveats applicable to conventional trade in goods) and, in specific cases, to income-distribution effects.Outsourcing,WTO, Services

    SuperWIMP Cosmology and Collider Physics

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    Dark matter may be composed of superWIMPs, superweakly-interacting massive particles produced in the late decays of other particles. We focus here on the well-motivated supersymmetric example of gravitino LSPs. Gravitino superWIMPs share several virtues with the well-known case of neutralino dark matter: they are present in the same supersymmetric frameworks (supergravity with R-parity conservation) and naturally have the desired relic density. In contrast to neutralinos, however, gravitino superWIMPs are impossible to detect by conventional dark matter searches, may explain an existing discrepancy in Big Bang nucleosynthesis, predict observable distortions in the cosmic microwave background, and imply spectacular signals at future particle colliders.Comment: 12 pages, to appear in the proceedings of SUSY2004, the 12th International Conference on Supersymmetry and Unification of Fundamental Interactions, Tsukuba, Japan, 17-23 June 200
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