Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants

D.SosnovJr.The CMS Collaboration

doi:10.1016/j.physletb.2026.140359

Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants

D.SosnovJr.The CMS Collaboration

A. Alikhanian Yerevan Institute of Physics
Yerevan State University
Austrian Academy of Sciences
TU Wien
University of Antwerp
Vrije Universiteit Brussel
Ghent University
Université libre de Bruxelles
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
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Universidade Federal do Rio Grande do Sul
Universidade do Estado do Amazonas
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Universidad de Tarapacá
Universidad Técnica Federico Santa Maria
Beihang University
Tsinghua University
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
China Center of Advanced Science and Technology World Laboratory
Peking University
South China Normal University
Sun Yat-Sen University
University of Science and Technology of China
Nanjing Normal University
Henan Normal University
University of Shanghai for Science and Technology
University of Iowa
CAS - Institute of Modern Physics
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
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Universidad San Francisco de Quito
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Cairo University
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The British University in Egypt
Al-Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
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University College Dublin
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Helwan University
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Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
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University of Wisconsin-Madison
Academy of Sciences of the Republic of Uzbekistan

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

For the first time, correlations among mixed-order moments of two or three flow harmonics —(v_n^k,v_m^l) and (v_n^k,v_m^l,v_p^q), with k, l , and q denoting the respective orders—are measured in xenon–xenon (XeXe) collisions and compared with lead–lead (PbPb) results, providing a novel probe of collective behavior in heavy ion collisions. These measurements compare a nearly spherical, doubly-magic ²⁰⁸Pb nucleus to a triaxially deformed ¹²⁹Xe nucleus, emphasizing the sensitivity to initial-state geometry fluctuations arising from nuclear deformation. The dependence of these results (v_n , n=2,3,4) on the shape and size of the nuclear overlap region is studied. Comparisons between v ₂, v ₃, and v ₄ demonstrate the importance of v ₃ and v ₄ in exploring the nonlinear hydrodynamic response of the quark-gluon plasma (QGP) to the initial spatial anisotropy. The results constrain initial-state model parameters that influence the evolution of the QGP. The CMS detector was used to collect XeXe and PbPb data at nucleon-nucleon center-of-mass energies of S_NN=5.44 and 5.36 TeV, respectively. Correlations are extracted using multiparticle mixed-harmonic cumulants (up to eight-particle cumulants) with charged particles in the pseudorapidity range | η | ' 2.4 and transverse momentum range 0.5 ' p_T ' 3 GeV/c.

源语言	英语
文章编号	140359
期刊	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
卷	876
DOI	https://doi.org/10.1016/j.physletb.2026.140359
出版状态	已出版 - 5月 2026

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10.1016/j.physletb.2026.140359

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@article{33c5e3c49f784292a16959f7cf5a5aa6,

title = "Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants",

abstract = "For the first time, correlations among mixed-order moments of two or three flow harmonics —(vnk,vml) and (vnk,vml,vpq), with k, l , and q denoting the respective orders—are measured in xenon–xenon (XeXe) collisions and compared with lead–lead (PbPb) results, providing a novel probe of collective behavior in heavy ion collisions. These measurements compare a nearly spherical, doubly-magic 208Pb nucleus to a triaxially deformed 129Xe nucleus, emphasizing the sensitivity to initial-state geometry fluctuations arising from nuclear deformation. The dependence of these results (vn , n=2,3,4) on the shape and size of the nuclear overlap region is studied. Comparisons between v 2, v 3, and v 4 demonstrate the importance of v 3 and v 4 in exploring the nonlinear hydrodynamic response of the quark-gluon plasma (QGP) to the initial spatial anisotropy. The results constrain initial-state model parameters that influence the evolution of the QGP. The CMS detector was used to collect XeXe and PbPb data at nucleon-nucleon center-of-mass energies of SNN=5.44 and 5.36 TeV, respectively. Correlations are extracted using multiparticle mixed-harmonic cumulants (up to eight-particle cumulants) with charged particles in the pseudorapidity range | η | ' 2.4 and transverse momentum range 0.5 ' pT ' 3 GeV/c.",

keywords = "CMS, Flow, Heavy ion, QGP, System size",

author = "\{D.SosnovJr.The CMS Collaboration\} and A. Hayrapetyan and V. Makarenko and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and L. Benato and T. Bergauer and M. Dragicevic and C. Giordano and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and A. Li and D. Liko and I. Mikulec and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and M. Shooshtari and M. Sonawane and W. Waltenberger and Wulz, \{C. E.\} and T. Janssen and H. Kwon and \{Ocampo Henao\}, D. and \{Van Laer\}, T. and \{Van Mechelen\}, P. and J. Bierkens and N. Breugelmans and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and F. Heyen and Y. Hong and P. Kashko and S. Lowette and I. Makarenko and D. M{\"u}ller and J. Song and S. Tavernier and M. Tytgat and \{Van Onsem\}, \{G. P.\} and \{Van Putte\}, S. and D. Vannerom and B. Bilin and B. Clerbaux and Das, \{A. K.\} and T. Cheng and L. Wang",

note = "Publisher Copyright: {\textcopyright} 2026 The Authors.",

year = "2026",

month = may,

doi = "10.1016/j.physletb.2026.140359",

language = "英语",

volume = "876",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants

AU - D.SosnovJr.The CMS Collaboration

AU - Hayrapetyan, A.

AU - Makarenko, V.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Benato, L.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Giordano, C.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Li, A.

AU - Liko, D.

AU - Mikulec, I.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Shooshtari, M.

AU - Sonawane, M.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Janssen, T.

AU - Kwon, H.

AU - Ocampo Henao, D.

AU - Van Laer, T.

AU - Van Mechelen, P.

AU - Bierkens, J.

AU - Breugelmans, N.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - Heyen, F.

AU - Hong, Y.

AU - Kashko, P.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Song, J.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Onsem, G. P.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - Das, A. K.

AU - Cheng, T.

AU - Wang, L.

PY - 2026/5

Y1 - 2026/5

N2 - For the first time, correlations among mixed-order moments of two or three flow harmonics —(vnk,vml) and (vnk,vml,vpq), with k, l , and q denoting the respective orders—are measured in xenon–xenon (XeXe) collisions and compared with lead–lead (PbPb) results, providing a novel probe of collective behavior in heavy ion collisions. These measurements compare a nearly spherical, doubly-magic 208Pb nucleus to a triaxially deformed 129Xe nucleus, emphasizing the sensitivity to initial-state geometry fluctuations arising from nuclear deformation. The dependence of these results (vn , n=2,3,4) on the shape and size of the nuclear overlap region is studied. Comparisons between v 2, v 3, and v 4 demonstrate the importance of v 3 and v 4 in exploring the nonlinear hydrodynamic response of the quark-gluon plasma (QGP) to the initial spatial anisotropy. The results constrain initial-state model parameters that influence the evolution of the QGP. The CMS detector was used to collect XeXe and PbPb data at nucleon-nucleon center-of-mass energies of SNN=5.44 and 5.36 TeV, respectively. Correlations are extracted using multiparticle mixed-harmonic cumulants (up to eight-particle cumulants) with charged particles in the pseudorapidity range | η | ' 2.4 and transverse momentum range 0.5 ' pT ' 3 GeV/c.

AB - For the first time, correlations among mixed-order moments of two or three flow harmonics —(vnk,vml) and (vnk,vml,vpq), with k, l , and q denoting the respective orders—are measured in xenon–xenon (XeXe) collisions and compared with lead–lead (PbPb) results, providing a novel probe of collective behavior in heavy ion collisions. These measurements compare a nearly spherical, doubly-magic 208Pb nucleus to a triaxially deformed 129Xe nucleus, emphasizing the sensitivity to initial-state geometry fluctuations arising from nuclear deformation. The dependence of these results (vn , n=2,3,4) on the shape and size of the nuclear overlap region is studied. Comparisons between v 2, v 3, and v 4 demonstrate the importance of v 3 and v 4 in exploring the nonlinear hydrodynamic response of the quark-gluon plasma (QGP) to the initial spatial anisotropy. The results constrain initial-state model parameters that influence the evolution of the QGP. The CMS detector was used to collect XeXe and PbPb data at nucleon-nucleon center-of-mass energies of SNN=5.44 and 5.36 TeV, respectively. Correlations are extracted using multiparticle mixed-harmonic cumulants (up to eight-particle cumulants) with charged particles in the pseudorapidity range | η | ' 2.4 and transverse momentum range 0.5 ' pT ' 3 GeV/c.

KW - CMS

KW - Flow

KW - Heavy ion

KW - QGP

KW - System size

UR - https://www.scopus.com/pages/publications/105036006648

U2 - 10.1016/j.physletb.2026.140359

DO - 10.1016/j.physletb.2026.140359

M3 - 文章

AN - SCOPUS:105036006648

SN - 0370-2693

VL - 876

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 140359

ER -

Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants

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