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Tomas Kasemets, Torbjörn Sjöstrand
A Comparison of new MC-adapted Parton Densities
Abstract
A selection of the latest and most frequently used parton distribution
functions (PDFs) is incorporated in Pythia8, including the Monte
Carlo-adapted PDFs from the MSTW and CTEQ collaborations. This article
examines the differences in PDFs as well as the effect they have on
results of simulations and compare with data collected by the CDF
experiment. Monte Carlo-adapted PDFs do a better job than leading- and
next-to-leading order PDFs for many observables, but there is room for
further improvements.
LU TP 10-19
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