# Exploring potential jet modification in small collision systems with two particle correlations at PHENIX

- Institution: CERN
- Department: Conferences
- Speaker: Cheuk-Ping Wong
- Year: 2020
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3000832)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Flow results in small systems at RHIC and the LHC indicate QGP droplets are formed in these collision systems. Measurements of jet $R_{pA}$ on the other hand are consistent with no modification to the jets produced. However, non-zero $v_n$ values for high momentum particles, which in A+A collisions are attributed to path-length dependent energy loss, have been observed in small systems. To further probe possible modification to jet particles, PHENIX measures the relative modification of the near and away-side jet particles in pi0-hadron correlations in 200 GeV d+Au and 3He+Au collisions. Modifications similar to the high $p_T$ suppression and low momentum enhancement of associated particles observed in A+A collisions have been observed in d+Au collisions. These surprising results have now also been seen in 3He+Au data. These PHENIX measurements and possible interpretations of these intriguing results will be presented..

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## Lectures

1. [Exploring potential jet modification in small collision systems with two particle correlations at PHENIX](https://invisiblenetwork.ai/learn/cern/3000832/781342934a99), 19 min (CERN's player)