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Understanding Long-Range Near-Side Ridge Correlations in p-p Collisions Using Rope Hadronisation at Energies Available at the CERN Large Hadron Collider
Journal
Springer Proceedings in Physics
ISSN
09308989
Date Issued
2022-01-01
Author(s)
Chakraborty, Pritam
Dash, Sadhana
Abstract
The long-range ridge-like structure in the near-side region of the two-particle Δ η- Δ ϕ correlations, estimated by LHC experiments in high multiplicity p−p collisions signals the presence of collectivity which are similar to that observed in p−A(nucleon–nucleus) and A−A collisions.The two-particle correlation in Δ η- Δ ϕ between the charged particles produced in p−p collisions at s = 7 TeV and 13 TeV is studied using Pythia8 event generator which includes the final-state partonic color reconnection effects and the microscopic rope hadronisation model.The rope hadronisation corresponds to the formation of ropes due to overlapping of strings in high multiplicity events followed by string shoving.By enabling the rope hadronisation mechanism (with shoving), a near-side ridge-like structure has been observed for high-multiplicity events which are qualitatively similar to the ridge observed in the data.
Volume
277