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Automation of One-Loop Calculations with GoSam: Present Status and Future Outlook / Cullen, Gavin (Edinburgh U.) ; Greiner, Nicolas (Illinois U., Urbana ; Munich, Max Planck Inst.) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Luisoni, Gionata (Durham U.) ; Mastrolia, Pierpaolo (Munich, Max Planck Inst.) ; Ossola, Giovanni (New York City Coll. Tech. ; CUNY, Graduate School - U. Ctr.) ; Reiter, Thomas (Munich, Max Planck Inst.) ; Tramontano, Francesco (CERN)
In this presentation, we describe the GoSam (Golem/Samurai) framework for the automated computation of multi-particle scattering amplitudes at the one-loop level. The amplitudes are generated analytically in terms of Feynman diagrams, and can be evaluated using either D-dimensional integrand reduction or tensor decomposition. [...]
arXiv:1111.3339.- 2011 - 15 p.
Fulltext: arXiv:1111.3339 - PDF; v42p2351 - PDF; External link: Acta Physica Polonica Server

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Automated One-Loop Calculations with GoSam / Cullen, Gavin (DESY, Zeuthen ; Edinburgh U.) ; Greiner, Nicolas (Illinois U., Urbana ; Munich, Max Planck Inst.) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Luisoni, Gionata (Durham U., IPPP) ; Mastrolia, Pierpaolo (Padua U. ; INFM, Padua) ; Ossola, Giovanni (New York City Coll. Tech. ; CUNY, Graduate School - U. Ctr.) ; Reiter, Thomas (Munich, Max Planck Inst.) ; Tramontano, Francesco (CERN)
We present the program package GoSam which is designed for the automated calculation of one-loop amplitudes for multi-particle processes in renormalisable quantum field theories. The amplitudes, which are generated in terms of Feynman diagrams, can be reduced using either D-dimensional integrand-level decomposition or tensor reduction. [...]
arXiv:1111.2034; CERN-PH-TH-2011-272; MPP-2011-132; DESY-11-203; IPPP-11-72; DCPT-11-144; EDINBURGH-2011-32; CERN-PH-TH-2011-272; MPP-2011-132; DESY-11-203; IPPP-11-72; DCPT-11-144; EDINBURGH-2011-32.- 2012-03-27 - 65 p. - Published in : Eur. Phys. J. C 72 (2012) 1889 Fulltext: PDF; External link: Preprint

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Modern Feynman Diagrammatic One-Loop Calculations / Reiter, Thomas (NIKHEF, Amsterdam) ; Cullen, Gavin (Edinburgh U.) ; Greiner, Nicolas (Illinois U., Urbana) ; Guffanti, Alberto (Freiburg U.) ; Guillet, Jean-Philippe (Annecy, LAPTH) ; Heinrich, Gudrun (Durham U., IPPP) ; Karg, Stefan (Aachen, Tech. Hochsch.) ; Kauer, Nikolas (Royal Holloway, U. of London) ; Kleinschmidt, Tobias (Durham U., IPPP) ; Koch-Janusz, Maciej (NIKHEF, Amsterdam) et al.
In this talk we present techniques for calculating one-loop amplitudes for multi-leg processes using Feynman diagrammatic methods in a semi-algebraic context. Our approach combines the advantages of the different methods allowing for a fast evaluation of the amplitude while monitoring the numerical stability of the calculation. [...]
arXiv:1011.6632.- 2010 - 11 p. - Published in : PoS: CPP2010 (2010) , pp. 003
Fulltext: arXiv:1011.6632 - PDF; 1011.6632 - PDF; CPP2010_003 - PDF; External link: Proceedings of Science Server

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Next-to-leading order multi-leg processes for the Large Hadron Collider / Binoth, Thomas (Edinburgh U.) ; Reiter, Thomas (Edinburgh U.) ; Andersen, Jeppe R. (CERN) ; Heinrich, Gudrun (Durham U., IPPP) ; Smillie, Jennifer M. (Durham U., IPPP) ; Guillet, Jean-Philippe (Annecy, LAPTH) ; Sanguinetti, Gregory (Annecy, LAPTH) ; Karg, Stefan (RWTH Aachen U.) ; Kauer, Nikolas (Wurzburg U.)
In this talk we discuss recent progress concerning precise predictions for the LHC. We give a status report of three applications of our method to deal with multi-leg one-loop amplitudes: The interference term of Higgs production by gluon- and weak boson fusion to order O(alpha^2 alpha_s^3) and the next-to-leading order corrections to the two processes pp -> ZZ jet and u ubar -> d dbar s sbar. [...]
arXiv:0801.1616; EDINBURGH-2008-2; LAPTH-1233-08; CERN-PH-TH-2008-008; IPPP-08-01; PITHA-08-02; CERN-PH-TH-2008-008; EDINBURGH-2008-2; IPPP-2008-01; LAPTH-2008-1233; PITHA-2008-02.- 2007 - 6 p. - Published in : PoS RAD COR 2007 (2007) 008 Fulltext: arXiv:0801.1616 - PDF; RAD COR 2007_008 - PDF; Published version from PoS: PDF; External link: Proceedings of Science Server
In : 8th International Symposium on Radiative Corrections, Florence, Italy, 1 - 6 Oct 2007, pp.008

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Voir aussi: noms d'auteurs similaires
7	Reiter, T
8	Reiter, T.

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