Faster Parton Distribution Evaluation in Monte Carlos

Details Faster Parton Distribution Evaluation in Monte Carlos Faster Parton Distribution Evaluation in Monte Carlos

2004-03-04

arxiv.org/abs/hep-ph/0403055v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages

Scientific paper

I recommend a few trivial changes to the routines that evaluate CTEQ parton distribution functions. These changes allow modern compilers to optimize the evaluation routines, while having no quantitative effect on the results. Computation time is reduced by a factor of 2 in matrix-element calculations, and by 1.3-1.5 in the showering Monte Carlo event generators with fast detector effects included. The results suggest that additional time should be invested in optimizing these routines.

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