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Etude de la théorie de Yang-Mills N=4

Abstract : This thesis describes some of the developments in calculational techniques for scattering amplitudes in super-symmetric gauge field theory. The focus is on on-shell recursion relations and on the use of unitarity methods for loop calculations. In particular, on-shell recursion is related to the BCFW rules for computing tree-level gauge amplitudes. Combinations of unitarity cut techniques and recursion are used to compute the loop level amplitude. And finally start from amplitudes to obtain energy-energy correlation function in Super-Yang-Mills N = 4 Theory with the aid of Mellin-Barnes representation. In the last chapter, we were trying to find a convergent contour for the Mellin-Barnes integrals in multi-dimension obtained by looking for some approximation stationary-phase contour.
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  • HAL Id : tel-00834200, version 1


Zongren Peng. Etude de la théorie de Yang-Mills N=4. Physique mathématique [math-ph]. Université Pierre et Marie Curie - Paris VI, 2012. Français. ⟨NNT : 2012PAO66444⟩. ⟨tel-00834200⟩



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