Note on the CMS multiplicity distributions
K. Fialkowski, R. Wit
TL;DR
This paper compares CMS multiplicity data with PYTHIA simulations, finding reasonable agreement but highlighting challenges in further tuning parameters for better accuracy.
Contribution
It provides an assessment of PYTHIA's default tuning against CMS data, emphasizing the limitations in improving multiplicity distribution modeling.
Findings
Reasonable agreement between CMS data and PYTHIA simulations
Difficulty in further tuning parameters for better fit
Highlights limitations in current modeling approaches
Abstract
The CMS data on the multiplicity distributions are compared with the results from the 8.142 version of the PYTHIA MC event generator with the default tuning and realistic impact parameter profile. The agreement is reasonable. However, it seems to be difficult to improve further this agreement by tuning the parameters determining the multiple parton interactions.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Stochastic processes and financial applications · Cosmology and Gravitation Theories