Login

ACAT 2008

3–7 Nov 2008
Ettore Majorana Foundation and Centre for Scientific Culture
Europe/Zurich timezone

Support

Session

Methodology of Computations in Theoretical Physics - Session 2

5 Nov 2008, 16:10
Ettore Majorana Foundation and Centre for Scientific Culture

Ettore Majorana Foundation and Centre for Scientific Culture

Via Guarnotta, 26 - 91016 ERICE (Sicily) - Italy Tel: +39-0923-869133 Fax: +39-0923-869226 E-mail: hq@ccsem.infn.it

Presentation materials

There are no materials yet.

  1. 207. Numerical calculations of Multiple Polylog functions
    Dr Yoshimasa Kurihara (KEK)
    05/11/2008, 16:10
    3. Computation in Theoretical Physics
    Parallel Talk
    Multiple Polylog functions (MPL) often appear as a result of the Feynman parameter integrals in higher order correction in quantum field theory. Numerical evaluation of the MPL with higher depth and weight is necessary for multi-loop calculations. We propose a purely numerical method to evaluate MPL using numerical contour integral in multi-parameter complex-plane. We can obtain values of MPL...
    Go to contribution page
  2. 170. New results for loop integrals
    Tord Riemann (DESY)
    05/11/2008, 16:35
    3. Computation in Theoretical Physics
    Parallel Talk
    We present some recent results on the evaluation of massive one-loop multileg Feynman integrals, which are of relevance for LHC processes. An efficient complete analytical tensor reduction was derived and implemented in a Mathematica package hexagon.m. Alternatively, one may use Mellin-Barnes techniques in order to avoid the tensor reduction. We shortly report on a new version of the...
    Go to contribution page
  3. 38. Feynman Diagrams, Differential Reduction and Hypergeometric Functions
    Dr mikhail kalmykov (Hamburg U./JINR)
    05/11/2008, 17:00
    3. Computation in Theoretical Physics
    Parallel Talk
    Recent results related with manipulation of hypergeometric functions: reduction and construction of higher-order terms in epsilon-expansion is revised. The application of given technique to the analytical evaluation of Feynman diagrams is considered.
    Go to contribution page
Building timetable...