The observation of long range ridge-like structure in the near-side region of the two particle $\mathrm{\Delta }\eta -\mathrm{\Delta }\varphi$ correlations as measured by CERN Large Hadron Collider experiments in high multiplicity $p\text{−}p$ collisions indicated towards the presence of collective effects which are similar to that observed in $p\text{−}A$(nucleon-nucleus) and $A\text{−}A$ (nucleus-nucleus) collisions. The two particle correlation between the charged particles in $\mathrm{\Delta }\eta -\mathrm{\Delta }\varphi$ for $p\text{−}p$ collisions at $\sqrt{s}=7$ TeV and 13 TeV is studied using the pythia 8 event generator within the framework of final-state partonic color reconnection effects as well as the microscopic rope hadronization model. The rope hadronization relies on the formation of ropes due to overlapping of strings in high multiplicity events followed by string shoving. A near side ridge-like structure which is qualitatively similar to the observed ridge in data was observed for high-multiplicity events when the mechanism of rope hadronization (with shoving) was enabled.

• Received 30 June 2020
• Accepted 24 September 2020

DOI:https://doi.org/10.1103/PhysRevC.102.055202

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Published by the American Physical Society