Export citation

Export citation

Choose format for download:

Download Citation

    Measurement of the longitudinal flow-plane decorrelation using multiplane cumulants in sNN=200GeV Au + Au, Ru + Ru, and Zr + Zr collisions

    B. E. Aboona58, J. Adam17, L. Adamczyk3, I. Aggarwal45, M. M. Aggarwal45, Z. Ahammed66, A. K. Alshammri33, E. C. Aschenauer7, S. Aslam22 et al. (STAR Collaboration)

    S. Aslam22, J. Atchison2, V. Bairathi56, X. Bao52, P. Barik27, K. Barish12, S. Behera28, R. Bellwied25, P. Bhagat32, A. Bhasin32, S. Bhatta55, S. R. Bhosale3, J. Bielcik17, J. Bielcikova43,17, J. D. Brandenburg44, C. Broodo25, X. Z. Cai53, H. Caines70, M. Calderón de la Barca Sánchez10, D. Cebra10, J. Ceska17, I. Chakaberia36, P. Chaloupka17, Y. S. Chang46, Z. Chang30, A. Chatterjee19, D. Chen12, J. H. Chen22, Q. Chen23, W. Chen22, Z. Chen52, J. Cheng61, Y. Cheng11, W. Christie7, X. Chu7, S. Corey44, H. J. Crawford9, M. Csanád20, G. Dale-Gau17, A. Das17, D. De Souza Lemos7, I. M. Deppner24, A. Deshpande55, A. Dhamija45, A. Dimri55, P. Dixit22, X. Dong36, J. L. Drachenberg2, E. Duckworth33, J. C. Dunlop7, Y. S. El-Feky5, J. Engelage9, G. Eppley47, S. Esumi62, O. Evdokimov14, O. Eyser7, B. Fan13, Y. Fang61, R. Fatemi34, S. Fazio8, H. Feng13, Y. Feng13, E. Finch54, Y. Fisyak7, F. A. Flor70, C. Fu31, T. Fu52, C. A. Gagliardi58, T. Galatyuk18, T. Gao52, Y. Gao22, G. Garcia7, F. Geurts47, A. Gibson65, A. Giri25, K. Gopal28, X. Gou52, D. Grosnick65, A. Gu26, J. Gu22, A. Gupta32, W. Guryn7, A. Hamed5, R. J. Hamilton70, J. Han13, X. Han44, S. Harabasz18, M. D. Harasty10, J. W. Harris70, H. Harrison-Smith34, L. B. Havener70, X. H. He31, Y. He52, N. Herrmann24, L. Holub17, C. Hu63, Q. Hu31, Y. Hu36, H. Huang42,1, H. Z. Huang11, S. L. Huang55, T. Huang14, Y. Huang20, Y. Huang31, Y. Huang22, M. Isshiki62, W. W. Jacobs30, A. Jalotra32, C. Jena28, A. Jentsch7, Y. Ji36, J. Jia55,7, X. Jiang13, C. Jin47, Y. Jin13, N. Jindal44, X. Ju49, E. G. Judd9, S. Kabana56, D. Kalinkin34, J. Kang51, K. Kang61, A. R. Kanuganti7, D. Kapukchyan12, K. Kauder7, D. Keane33, M. Kesler33, A. Khanal68, Y. V. Khyzhniak44, D. P. Kikoła67, J. Kim7, D. Kincses20, I. Kisel21, A. Kiselev7, A. G. Knospe37, J. Kołaś67, B. Korodi44, L. K. Kosarzewski44, L. Kumar45, M. C. Labonte10, R. Lacey55, J. M. Landgraf7, C. Larson34, J. Lauret7, A. Lebedev7, J. H. Lee7, Y. H. Leung24, C. Li13, D. Li49, H-S. Li46, H. Li69, H. Li23, H. Li13, W. Li47, X. Li49, X. Li49, Y. Li61, Z. Li50, Z. Li49, X. Liang12, R. Licenik43,17, T. Lin52, Y. Lin23, M. A. Lisa44, C. Liu31, G. Liu50, H. Liu26, L. Liu13, L. Liu22, Z. Liu22, Z. Liu13, T. Ljubicic47, O. Lomicky17, E. M. Loyd12, T. Lu31, J. Luo49, X. F. Luo13, L. Ma22, R. Ma7, Y. G. Ma22, N. Magdy59, D. Mallick13, R. Manikandhan25, C. Markert60, O. Matonoha17, K. Mi63, S. Mioduszewski58, B. Mohanty41, B. Mondal41, M. M. Mondal38, I. Mooney70, J. Mrazkova43,17, M. I. Nagy20, C. J. Naim55, A. S. Nain45, J. D. Nam57, M. Nasim27, H. Nasrulloh49, J. M. Nelson9, M. Nie52, G. Nigmatkulov14, T. Niida62, T. Nonaka62, G. Odyniec36, A. Ogawa7, S. Oh51, K. Okubo62, B. S. Page7, S. Pal17, A. Pandav36, A. Panday27, A. K. Pandey67, T. Pani48, A. Paul12, S. Paul55, D. Pawlowska67, C. Perkins9, S. Ping22, J. Pluta67, B. R. Pokhrel57, I. D. Ponce Pinto70, M. Posik57, E. Pottebaum70, S. Prodhan28, T. L. Protzman37, A. Prozorov17, V. Prozorova17, N. K. Pruthi45, M. Przybycien3, J. Putschke68, Y. Qi13, Z. Qin61, H. Qiu31, C. Racz12, S. K. Radhakrishnan33, A. Rana45, R. L. Ray60, R. Reed37, C. W. Robertson46, M. Robotkova43,17, M. A. Rosales Aguilar34, D. Roy48, P. Roy Chowdhury67, L. Ruan7, A. K. Sahoo31, N. R. Sahoo28, H. Sako62, S. Salur48, S. S. Sambyal32, J. K. Sandhu37, S. Sato62, B. C. Schaefer37, N. Schmitz39, F-J. Seck18, J. Seger16, R. Seto12, P. Seyboth39, N. Shah29, P. V. Shanmuganathan7, T. Shao22, M. Sharma32, N. Sharma27, R. Sharma28, S. R. Sharma28, A. I. Sheikh33, D. Shen52, D. Y. Shen31, K. Shen49, S. Shi13, Y. Shi52, E. Shulga7, F. Si49, J. Singh56, S. Singha31, P. Sinha28, M. J. Skoby6,46, N. Smirnov70, Y. Söhngen24, Y. Song70, T. D. S. Stanislaus65, M. Stefaniak44, Y. Su49, M. Sumbera43, X. Sun31, Y. Sun49, B. Surrow57, M. Svoboda43,17, Z. W. Sweger10, A. C. Tamis70, A. H. Tang7, Z. Tang49, T. Tarnowsky40, J. H. Thomas36, A. R. Timmins25, D. Tlusty16, D. Torres Valladares47, S. Trentalange11, P. Tribedy7, S. K. Tripathy67, T. Truhlar17, B. A. Trzeciak17, O. D. Tsai11,7, C. Y. Tsang33,7, Z. Tu7, J. E. Tyler58, T. Ullrich7, D. G. Underwood4,65, G. Van Buren7, J. Vanek7, I. Vassiliev21, F. Videbæk7, S. A. Voloshin68, F. Wang46, G. Wang11, G. Wang13, J. S. Wang26, J. Wang52, K. Wang49, X. Wang52, Y. Wang49, Y. Wang13, Y. Wang61, Z. Wang22, Z. Wang52, Z. Y. Wang22, A. J. Watroba3, J. C. Webb7, P. C. Weidenkaff24, G. D. Westfall40, D. Wielanek67, H. Wieman36, G. Wilks14, S. W. Wissink30, R. Witt64, C. P. Wong7, J. Wu63, X. Wu11, X. Wu49, X. Wu13, B. Xi22, Y. Xiao22, Z. G. Xiao61, G. Xie63, W. Xie46, H. Xu26, N. Xu13, Q. H. Xu52, X. Xu61, Y. Xu52, Y. Xu22, Y. Xu13, Y. Xu31, Z. Xu33, Z. Xu4, G. Yan52, Z. Yan55, C. Yang52, Q. Yang52, S. Yang50, Y. Yang1,42, Z. Ye50, Z. Ye36, L. Yi52, Y. Yu52, W. Yuan61, H. Zbroszczyk67, W. Zha49, C. Zhang22, D. Zhang50, J. Zhang52, L. Zhang13, S. Zhang15, W. Zhang50, X. Zhang31, Y. Zhang31, Y. Zhang49, Y. Zhang52, Y. Zhang23, Z. Zhang7, Z. Zhang14, F. Zhao35, J. Zhao22, S. Zhou13, Y. Zhou13, X. Zhu61, M. Zurek4,7, and M. Zyzak21 (STAR Collaboration)

    • 1Academia Sinica, Nankang, 115, Taipei
    • 2Abilene Christian University, Abilene, Texas 79699
    • 3AGH University of Krakow, FPACS, Cracow 30-059, Poland
    • 4Argonne National Laboratory, Argonne, Illinois 60439
    • 5American University in Cairo, New Cairo 11835, Egypt
    • 6Ball State University, Muncie, Indiana 47306
    • 7Brookhaven National Laboratory, Upton, New York 11973
    • 8University of Calabria and INFN-Cosenza, Rende 87036, Italy
    • 9University of California, Berkeley, California 94720
    • 10University of California, Davis, California 95616
    • 11University of California, Los Angeles, California 90095
    • 12University of California, Riverside, California 92521
    • 13Central China Normal University, Wuhan, Hubei 430079
    • 14University of Illinois at Chicago, Chicago, Illinois 60607
    • 15Chongqing University, Chongqing 401331
    • 16Creighton University, Omaha, Nebraska 68178
    • 17Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic
    • 18Technische Universität Darmstadt, Darmstadt 64289, Germany
    • 19National Institute of Technology Durgapur, Durgapur - 713209, India
    • 20ELTE Eötvös Loránd University, Budapest, Hungary H-1117
    • 21Frankfurt Institute for Advanced Studies FIAS, Frankfurt 60438, Germany
    • 22Fudan University, Shanghai 200433
    • 23Guangxi Normal University, Guilin 541004
    • 24University of Heidelberg, Heidelberg 69120, Germany
    • 25University of Houston, Houston, Texas 77204
    • 26Huzhou University, Huzhou, Zhejiang 313000
    • 27Indian Institute of Science Education and Research (IISER), Berhampur 760010, India
    • 28Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
    • 29Indian Institute Technology, Patna, Bihar 801106, India
    • 30Indiana University, Bloomington, Indiana 47408
    • 31Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000
    • 32University of Jammu, Jammu 180001, India
    • 33Kent State University, Kent, Ohio 44242
    • 34University of Kentucky, Lexington, Kentucky 40506-0055
    • 35Lanzhou University, Lanzhou 730000
    • 36Lawrence Berkeley National Laboratory, Berkeley, California 94720
    • 37Lehigh University, Bethlehem, Pennsylvania 18015
    • 38Lovely Professional University, Jalandhar - Delhi G.T. Road, Pagwara, Panjab 144411, India
    • 39Max-Planck-Institut für Physik, Munich 80805, Germany
    • 40Michigan State University, East Lansing, Michigan 48824
    • 41National Institute of Science Education and Research, HBNI, Jatni 752050, India
    • 42National Cheng Kung University, Tainan 70101
    • 43Nuclear Physics Institute of the CAS, Rez 250 68, Czech Republic
    • 44The Ohio State University, Columbus, Ohio 43210
    • 45Panjab University, Chandigarh 160014, India
    • 46Purdue University, West Lafayette, Indiana 47907
    • 47Rice University, Houston, Texas 77251
    • 48Rutgers University, Piscataway, New Jersey 08854
    • 49University of Science and Technology of China, Hefei, Anhui 230026
    • 50South China Normal University, Guangzhou, Guangdong 510631
    • 51Sejong University, Seoul 05006, Republic of Korea
    • 52Shandong University, Qingdao, Shandong 266237
    • 53Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800
    • 54Southern Connecticut State University, New Haven, Connecticut 06515
    • 55State University of New York, Stony Brook, New York 11794
    • 56Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
    • 57Temple University, Philadelphia, Pennsylvania 19122
    • 58Texas A&M University, College Station, Texas 77843
    • 59Texas Southern University, Houston, Texas 77004
    • 60University of Texas, Austin, Texas 78712
    • 61Tsinghua University, Beijing 100084
    • 62University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
    • 63University of Chinese Academy of Sciences, Beijing 101408
    • 64United States Naval Academy, Annapolis, Maryland 21402
    • 65Valparaiso University, Valparaiso, Indiana 46383
    • 66Variable Energy Cyclotron Centre, Kolkata 700064, India
    • 67Warsaw University of Technology, Warsaw 00-661, Poland
    • 68Wayne State University, Detroit, Michigan 48201
    • 69Wuhan University of Science and Technology, Wuhan, Hubei 430065
    • 70Yale University, New Haven, Connecticut 06520

    Phys. Rev. C 113, 024908 – Published 17 February, 2026

    DOI: https://doi.org/10.1103/75tf-ljtk

    Abstract

    Measurements of the variation of anisotropic flow-plane angles (Ψn) with rapidity, commonly known as the flow-plane decorrelation, provide important insights into the initial conditions of the matter produced in heavy-ion collisions. In this paper, using data collected by the STAR experiment, we report the first measurement of the four-plane correlator observable Tn{ba;dc}=〈〈sin[n(Ψnb−Ψna)]sin[n(Ψnd−Ψnc)]〉〉, where superscripts a, b, c, and d denote sequential pseudorapidity (η) regions with a corresponding to the most backward region, b and c close to midrapidity with ηb<0 and ηc>0, and d being the most forward. The measurement is performed for the elliptic and triangular flow (i.e., n=2 and 3) in Au + Au and isobar (Ru + Ru, Zr + Zr) collisions at sNN=200 GeV. The goal of calculating the correlation of the flow-plane angle variations from backward to midcentral, and from midcentral to forward regions, is to probe the systematic variation of flow angle over a wide η range. In midcentral collisions (10–30% centrality), we find T2{ba;dc}=−0.004±0.001(stat)±0.002(syst) independent of the collision system. Such a small value of T2 favors a “random-walk” variation of the flow-plane angles, where the rapidity correlation length is smaller than the entire region under study. These measurements provide new information on the decorrelation patterns in the system and offer a quantitative estimate of possible systematic variations in anisotropic flow angles such as “twist” between forward and backward regions. This opens new opportunities for understanding the three-dimensional structure and the time evolution of the quark-gluon plasma created in heavy-ion collisions.

    Physics Subject Headings (PhySH)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    References (Subscription Required)

    Outline

    Information

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation