Evidence for Similar Collectivity of High Transverse-Momentum Particles in $p$-Pb and Pb-Pb Collisions
Charged hadron elliptic anisotropies (v2) are presented over a wide transverse momentum (pT) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS experiment and correspond to integrated luminosities of 186 and 0.607 nb−1 for the pPb and PbPb systems, respectively. A four-particle cumulant analysis is performed using subevents separated in pseudorapidity to effectively suppress noncollective effects. At high pT (pT>8 GeV), significant positive v2 values that are similar between pPb and PbPb collisions at comparable charged particle multiplicities are observed. This observation suggests a common origin for the multiparticle collectivity for high-pT particles in the two systems.
Authors
- M. Sonawane
- I. Mikulec
- M. Dragicevic
- P. S. Hussain
- C.-E. Wulz
- S. Dansana
- V. Chekhovsky
- et al.
- D. Liko
- W. Adam
- CMS Collaboration
- N. Krammer
- T. Van Laer
- D. Schwarz
- A. Hayrapetyan
- P. Van Mechelen
- J. Schieck
- A. Tumasyan
- T. Janssen
- A. Li
- S. Chatterjee
- J. W. Andrejkovic
- N. Breugelmans
- R. Schöfbeck
- M. Jeitler
- W. Waltenberger
- A. De Moor
- T. Bergauer
- J. D’Hondt
- L. Benato
- K. Damanakis
- V. Makarenko
Publication Details
- Journal
- Universität Zürich, ZORA
- Published
- 2025-08-13
- DOI
- https://doi.org/10.5167/uzh-284017
- Primary Topic
- High-Energy Particle Collisions Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00