Anisotropic flow measurements in OO and Ne-Ne collisions with ALICE
Abstract
The LHC results have demonstrated that small collision systems can exhibit collective behavior reminiscent of that~observed in heavy-ion collisions, opening a new frontier for exploring the connection between nuclear structure and collective dynamics at ultra-relativistic energies. However, the interpretation of collectivity in small collision systems is limited by understanding the proton subnucleonic structure. The 16O and 20Ne collisions delivered by the LHC offer an opportunity to study the influence of nuclear geometry on anisotropic flow in systems where the nuclear structure is well-constrained. In this proceeding, measurements of the anisotropic flow of charged particles, vn, in OO and Ne-Ne collisions involving up to eight-particle correlations are presented, using the multi-particle cumulant method. Furthermore, the first reconstruction of the probability distribution function of elliptic flow P(v2), and the first measurement of the ratio v3{4}/v3{2} in light-ion collision systems are reported. These measurements provide deeper insight into the role of nuclear geometry-driven flow in light-ion collisions.
Versions
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BibTeX
@misc{machacek2026anisotropic,
title = {{Anisotropic flow measurements in OO and Ne-Ne collisions with ALICE}},
author = {Vojtěch Macháček and for the ALICE Collaboration},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.32667},
eprint = {2610.32667},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.32667},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Anisotropic flow measurements in OO and Ne-Ne collisions with ALICE
AU - Vojtěch Macháček
AU - for the ALICE Collaboration
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2610.32667
UR - https://arxiv.org/abs/2610.32667
AB - The LHC results have demonstrated that small collision systems can exhibit collective behavior reminiscent of that~observed in heavy-ion collisions, opening a new frontier for exploring the connection between nuclear structure and collective dynamics at ultra-relativistic energies. However, the interpretation of collectivity in small collision systems is limited by understanding the proton subnucleonic structure. The ^16O and ^20Ne collisions delivered by the LHC offer an opportunity to study the influence of nuclear geometry on anisotropic flow in systems where the nuclear structure is well-constrained. In this proceeding, measurements of the anisotropic flow of charged particles, v_n, in OO and Ne-Ne collisions involving up to eight-particle correlations are presented, using the multi-particle cumulant method. Furthermore, the first reconstruction of the probability distribution function of elliptic flow P(v_2), and the first measurement of the ratio v_3{4}/v_3{2} in light-ion collision systems are reported. These measurements provide deeper insight into the role of nuclear geometry-driven flow in light-ion collisions.
ER -