Color Reconnection and Flowlike Patterns in $pp$ Collisions

Color Reconnection and Flowlike Patterns in $p p$ Collisions

A. Ortiz Velasquez, P. Christiansen, E. Cuautle Flores, I. A. Maldonado Cervantes, and G. Paić

Phys. Rev. Lett. 111, 042001 – Published 22 July 2013

Abstract

Increasingly, with the data collected at the LHC we are confronted with the possible existence of flow in $p p$ collisions. In this work, we show that PYTHIA 8 produces flowlike effects in events with multiple hard subcollisions due to color string formations between final partons from independent hard scatterings, the so-called color reconnection. We present studies of different identified hadron observables in $p p$ collisions at 7 TeV. Studies have been done both for minimum bias and multiplicity intervals in events with and without color reconnection to isolate the flowlike effect.