115,281 research outputs found

    Renormalization group flows for the second ZN\mathbb{Z}_{N} parafermionic field theory for NN even

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    Extending the results obtained in the case NN odd, the effect of slightly relevant perturbations of the second parafermionic field theory with the symmetry ZN\mathbb{Z}_{N}, for NN even, are studied. The renormalization group equations, and their infra red fixed points exhibit the same structure in both cases. In addition to the standard flow from the pp-th to the (p2)(p-2)-th model, another fixed point corresponding to the (p1)(p-1)-th model is found

    Forward Physics Capabilities of CMS with the CASTOR and ZDC detectors

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    The two calorimeters CASTOR and ZDCs enhance the hermeticity of the CMS detector at the LHC by extending the rapidity coverage in the forward region. After having described these detectors, their forward physics capabilities are presented. These latters include the study of parton shower, multiple parton interactions, diffraction and ultra high energy cosmic rays models. The processes to be measured to constrain these topics are multi-jet events with a forward jet, central-forward activity correlation, rapidity gaps and forward neutron production.Comment: 5 pages - 6 figures - DIS 2009 proceeding

    The Universal Generating Function of Analytical Poisson Structures

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    The notion of generating functions of Poisson structures was first studied in math.SG/0312380.They are special functions which induce, on open subsets of Rd\R^d, a Poisson structure together with the local symplectic groupoid integrating it. A universal generating function was provided in terms of a formal power series coming from Kontsevich star product. The present article proves that this universal generating function converges for analytical Poisson structures and compares the induced local symplectic groupoid with the phase space of Karasev--Maslov.Comment: 15 pages, 2 figures, shorter version, introductive part remove
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