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  • N=4 Scattering Amplitudes and the Deformed Grassmannian 

    Ferro, Livia; Lukowski, Tomasz; Staudacher, Matthias (2014-12-01)
    Some time ago the general tree-level scattering amplitudes of N=4 Super Yang-Mills theory were expressed as certain Grassmannian contour integrals. These remarkable formulas allow to clearly expose the super-conformal, ...
  • Spectral Parameters for Scattering Amplitudes in N=4 Super Yang-Mills Theory 

    Ferro, Livia; Lukowski, Tomasz; Meneghelli, Carlo; Plefka, Jan; Staudacher, Matthias (2014-01-17)
    Planar N=4 Super Yang-Mills theory appears to be a quantum integrable four-dimensional conformal theory. This has been used to find equations believed to describe its exact spectrum of anomalous dimensions. Integrability ...
  • Lessons from crossing symmetry at large N 

    Alday, Luis F.; Bissi, Agnese; Lukowski, Tomasz (2015-06-12)
    We consider the four-point correlator of the stress tensor multiplet in N=4 SYM. We construct all solutions consistent with crossing symmetry in the limit of large central charge c ~ N^2 and large g^2 N. While we find an ...
  • A Shortcut to General Tree-level Scattering Amplitudes in N=4 SYM via Integrability 

    Kanning, Nils; Lukowski, Tomasz; Staudacher, Matthias (2014-03-13)
    We combine recent applications of the two-dimensional quantum inverse scattering method to the scattering amplitude problem in four-dimensional N=4 Super Yang-Mills theory. Integrability allows us to obtain a general, ...
  • Use of bioresorbable vascular scaffold : a meta-analysis of patients with coronary artery disease 

    Farag, Mohamed; Spinthakis, Nikolaos; Gorog, Diana A; Prasad, Abhiram; Sullivan, Keith; Akhtar, Zaki; Kukreja, Neville; Srinivasan, Manivannan (2016-08-26)
    BACKGROUND: Differences in outcomes between bioresorbable vascular scaffold (BVS) systems and drug-eluting metal stents (DES) have not been fully evaluated. We aimed to compare clinical and angiographic outcomes in randomised ...

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