Feb 22 – 27, 2010
Jaipur, India
Europe/Zurich timezone

Feynman Integral Evaluation by a Sector decomposiTion Approach (FIESTA)

Feb 26, 2010, 2:30 PM
30m
Jaipur, India

Jaipur, India

Jaipur, India
Parallel Talk Methodology of Computations in Theoretical Physics Friday, 26 February - Methodology of Computations in Theoretical Physics

Speaker

Mikhail Tentyukov (Karlsruhe University)

Description

Sector decomposition in its practical aspect is a constructive method used to evaluate Feynman integrals numerically. We present a new program performing the sector decomposition and integrating the expression afterwards. Also the program can be used in order to expand Feynman integrals automatically in limits of momenta and masses with the use of sector decompositions and Mellin--Barnes representations. The program is parallelizable on modern multicore computers and even to multiple computers. Also we demonstrate some new numerical results for four-loop massless propagator master integrals.

Primary author

Mikhail Tentyukov (Karlsruhe University)

Co-authors

Alexander Smirnov (Scientific Research Computing Center of Moscow State University) Vladimir Smirnov (Nuclear Physics Institute of Moscow State University)

Presentation materials