Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aess_v1_0.tar.gz(2848 Kbytes)|
|Manuscript Title: MCgrid: projecting cross section calculations on grids|
|Authors: Luigi Del Debbio, Nathan Hartland, Steffen Schumann.|
|Program title: MCgrid|
|Catalogue identifier: AESS_v1_0|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 185(2014)2115|
|Programming language: C++, shell, Python.|
|Computer: PC running Linux, Mac.|
|Operating system: Linux, Mac OS.|
|Keywords: QCD NLO calculations, event generator, PDFs.|
|Classification: 11.2, 11.5, 11.9.|
External routines: HepMC (http://lcgapp.cern.ch/project/simu/HepMC/), Rivet (https://rivet.hepforge.org/), APPLgrid (http://applgrid.hepforge.org/).
A Sherpa (https://sherpa.hepforge.org/trac/wiki) installation is also required.
Nature of problem:
Efficient filling of cross section grid files from fully exclusive parton level Monte Carlo events.
Analyse Monte Carlo events via the Rivet program, which projects events on discretized cross section tables from APPLgrid.
Approximately 6 minutes per 1 million Drell-Yan events from Sherpa. This includes both the event generation and the mcgrid computations. The times can vary quite dramatically. The process used in the test case (which is a relatively fast one) takes about 2 minutes 30 seconds for the initial (phase-space fill) run and about 3 minutes for the second and final run. This is for 1 million events on a 2.9GhZ ivy bridge i7.
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