# Investigating the emergence of long-range angular correlations in low-multiplicity proton-proton collisions with ALICE

- Institution: CERN
- Department: LHC Seminar
- Speaker: Jasper Parkkila
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3009465)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The observation of long-range correlations in high-multiplicity proton-proton and proton-nucleus collisions at RHIC and LHC suggests the potential formation of a strongly-coupled Quark-Gluon Plasma in smaller volumes. We present the first high-precision measurement of long-range near-side yields in pp collisions down to very low charged-hadron multiplicities as well as the challenges involved in such analysis. This measurement extends the use of long-range correlation techniques to low-multiplicity events and provides a quantitative comparison to the results obtained in point-like e+e- collisions at similar event multiplicities. With these results, we provide unprecedented constraints on the emergence of collective phenomena in hadronic collisions in a so-far unexplored kinematic region.

Refreshments will be served at 10:30

## Lectures

1. [Investigating the emergence of long-range angular correlations in low-multiplicity proton-proton collisions with ALICE](https://invisiblenetwork.ai/learn/cern/3009465/76cc0a548a5d), 53 min (CERN's player)