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arXiv · 1106.5120

Deciphering nonfemtoscopic two-pion correlations in $p+p$ collisions with simple analytical models

S. V. Akkelin·Yu. M. Sinyukov
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Abstract

A simple model of nonfemtoscopic particle correlations in proton-proton collisions is proposed. The model takes into account correlations induced by the conservation laws as well as correlations induced by minijets. It reproduces well the two-pion nonfemtoscopic correlations of like-sign and unlike-sign pions in proton-proton collision events at $\sqrt{s} = 900$ GeV analyzed by the ALICE Collaboration. We also argue that similar nonfemtoscopic correlations can appear in the hydrodynamic picture with event-by-event fluctuating nonsymmetric initial conditions that are typically associated with nonzero higher-order flow harmonics.

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S. V. Akkelin, Yu. M. Sinyukov. 2012-04-24. Deciphering nonfemtoscopic two-pion correlations in $p+p$ collisions with simple analytical models. https://doi.org/10.1103/physrevd.85.074023

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