Published July 2016
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Numerical integration of massive two-loop Mellin-Barnes integrals in Minkowskian regions
- 1. Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik
- 2. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)
- 3. Uniwersytet Slaski, Katowice (Poland). Inst. Fizyki
Description
Mellin-Barnes (MB) techniques applied to integrals emerging in particle physics perturbative calculations are summarized. New versions of AMBRE packages which construct planar and nonplanar MB representations are shortly discussed. The numerical package MBnumerics.m is presented for the first time which is able to calculate with a high precision multidimensional MB integrals in Minkowskian regions. Examples are given for massive vertex integrals which include threshold effects and several scale parameters.
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Additional details
Publishing Information
- Imprint Pagination
- 17 p.
- ISSN
- 0418-9833
- Report number
- DESY--16-120
Conference
- Title
- Loops and legs in quantum field theory
- Dates
- 24-29 Apr 2016
- Place
- Leipzig (Germany)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 48044993
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- A CODES; AUTOMATION; FEYNMAN DIAGRAM; INTEGRAL CALCULUS; INTEGRALS; M CODES; MANY-DIMENSIONAL CALCULATIONS; MELLIN TRANSFORM; MINKOWSKI SPACE; NUMERICAL SOLUTION; PERTURBATION THEORY; REST MASS; SCALING LAWS
- Descriptors DEC
- COMPUTER CODES; DIAGRAMS; INFORMATION; INTEGRAL TRANSFORMATIONS; MASS; MATHEMATICAL SOLUTIONS; MATHEMATICAL SPACE; MATHEMATICS; SPACE; TRANSFORMATIONS
Optional Information
- Secondary number(s)
- KW--16-01