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arXiv · 2008.02601

Study of charged-particle multiplicity fluctuations in pp collisions with Monte Carlo event generators at the LHC

E. Shokr·A. H. El-Farrash·A. De Roeck·M. A. Mahmoud
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Abstract

Proton-Proton ($pp$) collisions at the Large Hadron Collider (LHC) are simulated in order to study events with a high local density of charged particles produced in narrow pseudorapidty windows of $\Delta\eta$ = 0.1, 0.2, and 0.5. The $pp$ collisions are generated at center of mass energies of $\sqrt{s} = 2.36$, $7$, $8$, and $13$ TeV, i.e. the energies at which the LHC has operated so far, using PYTHIA and HERWIG event generators. We have also studied the average of the maximum charged-particle density versus the event multiplicity for all events, using the different pseudorapidity windows. This study prepares for the multi-particle production background expected in a future search for anomalous high-density multiplicity fluctuations using the LHC data.

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E. Shokr, A. H. El-Farrash, A. De Roeck, M. A. Mahmoud. 2020-08-06. Study of charged-particle multiplicity fluctuations in pp collisions with Monte Carlo event generators at the LHC. https://doi.org/10.1142/s0218301320500743

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