PROGRAM SUMMARY
Title of program:
RunDec
Catalogue identifier:
ADMT
Ref. in CPC:
133(2000)43
Distribution format: tar gzip file
Operating system: UNIX
Number of lines in distributed program, including test data, etc:
1929
Keywords:
Elementary particle physics, Quantum Chromodynamics, Running coupling
constant, Running quark mass, On-shell mass, MSbar mass,
Decoupling of heavy particles.
Programming language used: Mathematica
Nature of problem:
The values for the coupling constant of Quantum Chromodynamics,
alphas(nf)(mu), actually depends on the considered energy scale, mu, and
the number of active quark flavours, nf. The same applies to light
quark masses, mq(nf)(mu), if they are, e.g., evaluated in the MSbar
scheme. In the program RunDec all relevant formulae are collected and
varioius procedures are provided which allow for a convenient evaluation
of alphas(nf)(mu) and mq(nf)(mu) using the state-of-the-art correction
terms.
Method of solution:
RunDec uses Mathematica functions to perform the different mathematical
operations.
Restrictions:
It could be that for an unphysical choice of the input parameters the
results are nonsensical.
Typical running time:
For all operations the running time does not exceed a few seconds.