109,107 research outputs found

    Non-perturbative Renormalisation with Domain Wall Fermions

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    We present results from a study of the renormalisation of both quark bilinear and four-quark operators for the domain wall fermion action, using the non-perturbative renormalisation technique of the Rome-Southampton group. These results are from a quenched simulation, on a 16^3 x 32 lattice, with beta=6.0 and L_s=16.Comment: 4 pages, 6 figures, Lattice 2000 (Improvement and Renormalisation), RBC collaboration, Typos correcte

    Non-Perturbative Renormalisation using Domain Wall Fermions

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    The viability of the Non-Perturbative Renormalisation (NPR) method of the Rome/Southampton group is studied, for the first time, in the context of domain wall fermions. The procedure is used to extract the renormalisation coefficients of the various quark bilinears, as well as the four-fermion operators relevant to the ΔS=2\Delta S=2 effective Hamiltonian. The renormalisation of the ΔS=1\Delta S=1 Hamiltonian is also discussed.Comment: LATTICE99(Improvement and Renormalization),3 pages, LaTeX2e; minor typos correcte

    Modeling and Control of the Automated Radiator Inspection Device

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    Many of the operations performed at the Kennedy Space Center (KSC) are dangerous and repetitive tasks which make them ideal candidates for robotic applications. For one specific application, KSC is currently in the process of designing and constructing a robot called the Automated Radiator Inspection Device (ARID), to inspect the radiator panels on the orbiter. The following aspects of the ARID project are discussed: modeling of the ARID; design of control algorithms; and nonlinear based simulation of the ARID. Recommendations to assist KSC personnel in the successful completion of the ARID project are given

    Book review: Syed Farid Alatas and Vineeta Sinha, Sociological Theory Beyond the Canon

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    Jeremy Corbyn, the PLP and historical visions of the Labour Party

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