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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/10836| Title: | Evidence for Similar Collectivity of High Transverse-Momentum Particles in 𝑝-Pb and Pb-Pb Collisions |
| Authors: | CMS Collaboration Chekhovsky, V. ACHARYA, S. ALPANA, A. DUBE, SOURABH GOMBER, B. HAZARIKA, P. KANSAL, B. LAHA, A. SAHU, B. SHARMA, SEEMA VAISH, K.Y. et al. Dept. of Physics |
| Keywords: | Collective flow Quark-gluon plasma Relativistic heavy-ion collisions Hadron colliders 2025 |
| Issue Date: | Aug-2025 |
| Publisher: | American Physical Society |
| Citation: | Physical Review Letters, 135, 071903. |
| Abstract: | 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. |
| URI: | https://doi.org/10.1103/t5kp-vsv7 http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/10836 |
| ISSN: | 1079-7114 0031-9007 |
| Appears in Collections: | JOURNAL ARTICLES |
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