Kira 1.2 Release Notes

Abstract

We present the Feynman integral reduction program Kira 1.2 and describe its new features and other changes w.r.t. the previous versions. The main new features include a much faster equation generator, more flexible seed specification options, several predefined integral orderings, the reduction of systems of user-provided equations and a new technique to simplify coefficients by sampling variables over integers. Furthermore, we provide a collection of recommendations on how to use the program efficiently. This version has overall improvements in runtime for all reduction tasks compared to the previous versions of Kira.

21 pages

References in corpus (9)

• FIRE5: a C++ implementation of Feynman Integral REduction
• Kira - A Feynman Integral Reduction Program
• Automatic Integral Reduction for Higher Order Perturbative Calculations
• Integration-by-parts reductions from unitarity cuts and algebraic geometry
• Complete integration-by-parts reductions of the non-planar hexagon-box via module intersections
• Complete sets of logarithmic vector fields for integration-by-parts identities of Feynman integrals
• Applying Groebner Bases to Solve Reduction Problems for Feynman Integrals
• Direct Solution of Integration-by-Parts Systems
• GiNaC - Symbolic computation with C++

Cited by in corpus (9)

• FIRE6: Feynman Integral REduction with Modular Arithmetic
• Reconstructing Rational Functions with $\text{FireFly}$
• Interpolation of Dense and Sparse Rational Functions and other Improvements in $\text{FireFly}$
• How to choose master integrals
• Integration-by-parts reductions of Feynman integrals using Singular and GPI-Space
• A prescription for projectors to compute helicity amplitudes in D dimensions
• Results and techniques for higher order calculations within the gradient-flow formalism
• pfd-parallel, a Singular/GPI-Space package for massively parallel multivariate partial fractioning
• On charm-mass dependent NNLO corrections to B -> Xs gamma