62,246 research outputs found

    Experimental systematic uncertainties (and object reconstruction) on top physics, their correlations, comparison ATLAS vs CMS (vs Tevatron) and common agreements

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    The experimental systematic uncertainties associated to the reconstruction and calibration of the objects appearing in top quark final states at the LHC and Tevatron are discussed. The strategies followed in the ATLAS and CMS experiments are compared in detail for the cases of the jet energy scale and bb-tagging calibrations, where a categorisation of the associated uncertainty sources as well as the corresponding correlations across experiments has been proposed. The estimate of the non-prompt and fake lepton background to the top quark leptonic channels is also discussed.Comment: Proceedings of Top2014 International Workshop on Top-Quark Physic

    Beware of Courts Bearing Gifts: Transparency and the Court of Justice of the European Union

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    This article reconsiders the principle of transparency in the European Union (EU) legal order and takes as its focal point the contribution of the EU Courts as regards the presumptions of non-disclosure of EU documents. The aim is to investigate the role played by the judiciary in relation to a twofold question: How open can the Union’s decision-making be, and is it possible for citizens to participate in the decision-making process of EU institutions, bodies, offices and agencies? The article argues that accountability deficits in the field of access to documents have been filled, to an extent, by the EU Courts’ imposition of boundaries on the broad derogations to the right of access to documents. But nevertheless, the article concludes that the establishment through the case law of general presumptions against openness has fundamentally weakened the standards of accountability. Rather regrettably, although the EU legislature set the default position to the widest access to documents, this has been reversed to non-disclosure by the EU judiciary as regards non-legislative documents

    One-loop calculations in Supersymmetric Lattice QCD

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    We study the self energies of all particles which appear in a lattice regularization of supersymmetric QCD (N=1{\cal N}=1). We compute, perturbatively to one-loop, the relevant two-point Green's functions using both the dimensional and the lattice regularizations. Our lattice formulation employs the Wilson fermion acrion for the gluino and quark fields. The gauge group that we consider is SU(Nc)SU(N_c) while the number of colors, NcN_c and the number of flavors, NfN_f, are kept as generic parameters. We have also searched for relations among the propagators which are computed from our one-loop results. We have obtained analytic expressions for the renormalization functions of the quark field (ZψZ_\psi), gluon field (ZuZ_u), gluino field (ZλZ_\lambda) and squark field (ZA±Z_{A_\pm}). We present here results from dimensional regularization, relegating to a forthcoming publication our results along with a more complete list of references. Part of the lattice study regards also the renormalization of quark bilinear operators which, unlike the non-supersymmetric case, exhibit a rich pattern of operator mixing at the quantum level.Comment: 6 pages, 5 figure, XII Quark Confinement proceeding


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    The Grant-in-Aid Program is a State sponsored seed grant program whereby the State of Minnesota provides the University of Minnesota approximately $2 million annually to fund new faculty research. Recently, the Graduate School engaged in an internal review of the Grant-in-Aid program. The purpose of the review was to determine how effective their seed grant program was in enabling University faculty to obtain additional grant funding from agencies outside the University. The following study discusses this review in some detail. An econometric analysis of survey data indicates that the seed-grant program is highly effective in enabling faculty to gain additional research funding. Further it was found that the ability of a faculty member to obtain additional extramural funding is dependent upon the discipline in which the research is being conducted.research productivity, seed grant, grant funding, Public Economics, Teaching/Communication/Extension/Profession,