Elsevier Science Home
Computer Physics Communications Program Library
Full text online from Science Direct
Programs in Physics & Physical Chemistry
CPC Home

[Licence| Download | New Version Template] aeuc_v1_0.tar.gz(1336 Kbytes)
Manuscript Title: EERAD3: Event shapes and jet rates in electron-positron annihilation at order αs3
Authors: A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, G. Heinrich
Program title: EERAD3
Catalogue identifier: AEUC_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 185(2014)3331
Programming language: FORTRAN77 (with some FORTRAN90 features).
Computer: All.
Operating system: All.
Has the code been vectorised or parallelized?: Program code allows the storage and adaptation of Monte Carlo information for producing statistically independent results on many cores. A tool for the combination of these is provided with the code.
RAM: 6 MBytes
Keywords: Elementary particle physics, Quantum Chromodynamics, Precision Calculations, Parton-level Monte Carlo simulation.
Classification: 11.2, 11.5.

Nature of problem:
Computation of second-order QCD corrections to event shapes and jet cross sections in electron-positron annihilation.

Solution method:
Generation of events at parton-level, supplemented by a subtraction method to combine infrared singular contributions among different partonic channels.

Running time:
The high-precision/high-resolution distributions in [1] required about 700 CPU-days on an Intel Q6800 2.9 GHz. Reasonable precision can be obtained with run times of about 100 hours per coefficient for distributions, or withing 5 hours if only single moments are computed.

References:
[1] A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover and G. Heinrich, JHEP 0712 (2007) 094 [arXiv:0711.4711].