Mid-rapidity charged hadron transverse spherocity in pp collisions simulated with Pythia

Abstract

The pp collisions have been studied for a long time, however, there are still some effects which are not completely understood, such as the long range angular correlations and the flow patterns in high multiplicity events, which were recently discovered at the LHC. In a recent work it was demonstrated that in Pythia 8, multi-parton interactions and color reconnection can give some of the observed effects similar to the collective flow well known from heavy-ion collisions. Now using the same model, a study based on mid-rapidity charged hadron transverse spherocity is presented. The main purpose of this work is to show that a differential study combining multiplicity and event shapes opens the possibility to understand better the features of data, specially at high multiplicity.

arXiv comment8 pages, 6 figures. The text was slightly extended, some typos were corrected, one plot and some references were added. The final version should appear in Nuclear Physics A

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