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arXiv · 1906.02523

Study of Monte Carlo event generators for proton-proton collisions at LHC energies in the forward region

Alexandru Catalin Ene·Alexandru Jipa·Lavinia-Elena Giubega
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Abstract

In this paper we present a comparative study between PYTHIA, EPOS, QGSJET, and SIBYLL generators. The global event observables considered are the charged energy flow, charged-particle distributions, charged-hadron production ratios and $V^{0}$ ratios. The study is performed in the LHCb and TOTEM fiducial phase-spaces on minimum bias simulated data samples for \emph{pp} collisions at $\sqrt{s} = 7$ TeV using reference measurements from the aforementioned experiments. In the majority of cases, the measurements are within a band defined by the most extreme predictions. The observed differences between the predictions and the measurements seem to be, in most part, caused by extrapolation from the central pseudorapidity region ($|η| \leq$ 2.5), in which the generators were mainly tuned.

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Alexandru Catalin Ene, Alexandru Jipa, Lavinia-Elena Giubega. 2019-06-06. Study of Monte Carlo event generators for proton-proton collisions at LHC energies in the forward region. https://doi.org/10.1088/1674-1137%2F43%2F8%2F083001

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