Physics Letters B (Apr 2022)

Light nuclei collectivity from sNN=3 GeV Au+Au collisions at RHIC

  • M.S. Abdallah,
  • B.E. Aboona,
  • J. Adam,
  • L. Adamczyk,
  • J.R. Adams,
  • J.K. Adkins,
  • G. Agakishiev,
  • I. Aggarwal,
  • M.M. Aggarwal,
  • Z. Ahammed,
  • A. Aitbaev,
  • I. Alekseev,
  • D.M. Anderson,
  • A. Aparin,
  • E.C. Aschenauer,
  • M.U. Ashraf,
  • F.G. Atetalla,
  • G.S. Averichev,
  • V. Bairathi,
  • W. Baker,
  • J.G. Ball Cap,
  • K. Barish,
  • A. Behera,
  • R. Bellwied,
  • P. Bhagat,
  • A. Bhasin,
  • J. Bielcik,
  • J. Bielcikova,
  • I.G. Bordyuzhin,
  • J.D. Brandenburg,
  • A.V. Brandin,
  • X.Z. Cai,
  • H. Caines,
  • M. Calderón de la Barca Sánchez,
  • D. Cebra,
  • I. Chakaberia,
  • P. Chaloupka,
  • B.K. Chan,
  • F.-H. Chang,
  • Z. Chang,
  • A. Chatterjee,
  • S. Chattopadhyay,
  • D. Chen,
  • J. Chen,
  • J.H. Chen,
  • X. Chen,
  • Z. Chen,
  • J. Cheng,
  • S. Choudhury,
  • W. Christie,
  • X. Chu,
  • H.J. Crawford,
  • M. Csanád,
  • M. Daugherity,
  • T.G. Dedovich,
  • I.M. Deppner,
  • A.A. Derevschikov,
  • A. Dhamija,
  • L. Di Carlo,
  • L. Didenko,
  • P. Dixit,
  • X. Dong,
  • J.L. Drachenberg,
  • E. Duckworth,
  • J.C. Dunlop,
  • J. Engelage,
  • G. Eppley,
  • S. Esumi,
  • O. Evdokimov,
  • A. Ewigleben,
  • O. Eyser,
  • R. Fatemi,
  • F.M. Fawzi,
  • S. Fazio,
  • C.J. Feng,
  • Y. Feng,
  • E. Finch,
  • Y. Fisyak,
  • A. Francisco,
  • C. Fu,
  • C.A. Gagliardi,
  • T. Galatyuk,
  • F. Geurts,
  • N. Ghimire,
  • A. Gibson,
  • K. Gopal,
  • X. Gou,
  • D. Grosnick,
  • A. Gupta,
  • W. Guryn,
  • A. Hamed,
  • Y. Han,
  • S. Harabasz,
  • M.D. Harasty,
  • J.W. Harris,
  • H. Harrison,
  • S. He,
  • W. He,
  • X.H. He,
  • Y. He,
  • S. Heppelmann,
  • S. Heppelmann,
  • N. Herrmann,
  • E. Hoffman,
  • L. Holub,
  • C. Hu,
  • Q. Hu,
  • Y. Hu,
  • H. Huang,
  • H.Z. Huang,
  • S.L. Huang,
  • T. Huang,
  • X. Huang,
  • Y. Huang,
  • T.J. Humanic,
  • D. Isenhower,
  • M. Isshiki,
  • W.W. Jacobs,
  • C. Jena,
  • A. Jentsch,
  • Y. Ji,
  • J. Jia,
  • K. Jiang,
  • X. Ju,
  • E.G. Judd,
  • S. Kabana,
  • M.L. Kabir,
  • S. Kagamaster,
  • D. Kalinkin,
  • K. Kang,
  • D. Kapukchyan,
  • K. Kauder,
  • H.W. Ke,
  • D. Keane,
  • A. Kechechyan,
  • M. Kelsey,
  • Y.V. Khyzhniak,
  • D.P. Kikoła,
  • B. Kimelman,
  • D. Kincses,
  • I. Kisel,
  • A. Kiselev,
  • A.G. Knospe,
  • H.S. Ko,
  • L. Kochenda,
  • A. Korobitsin,
  • L.K. Kosarzewski,
  • L. Kramarik,
  • P. Kravtsov,
  • L. Kumar,
  • S. Kumar,
  • R. Kunnawalkam Elayavalli,
  • J.H. Kwasizur,
  • R. Lacey,
  • S. Lan,
  • J.M. Landgraf,
  • J. Lauret,
  • A. Lebedev,
  • R. Lednicky,
  • J.H. Lee,
  • Y.H. Leung,
  • N. Lewis,
  • C. Li,
  • C. Li,
  • W. Li,
  • X. Li,
  • Y. Li,
  • X. Liang,
  • Y. Liang,
  • R. Licenik,
  • T. Lin,
  • Y. Lin,
  • M.A. Lisa,
  • F. Liu,
  • H. Liu,
  • H. Liu,
  • P. Liu,
  • T. Liu,
  • X. Liu,
  • Y. Liu,
  • Z. Liu,
  • T. Ljubicic,
  • W.J. Llope,
  • R.S. Longacre,
  • E. Loyd,
  • T. Lu,
  • N.S. Lukow,
  • X.F. Luo,
  • L. Ma,
  • R. Ma,
  • Y.G. Ma,
  • N. Magdy,
  • D. Mallick,
  • S.L. Manukhov,
  • S. Margetis,
  • C. Markert,
  • H.S. Matis,
  • J.A. Mazer,
  • N.G. Minaev,
  • S. Mioduszewski,
  • B. Mohanty,
  • M.M. Mondal,
  • I. Mooney,
  • D.A. Morozov,
  • A. Mukherjee,
  • M. Nagy,
  • J.D. Nam,
  • Md. Nasim,
  • K. Nayak,
  • D. Neff,
  • J.M. Nelson,
  • D.B. Nemes,
  • M. Nie,
  • G. Nigmatkulov,
  • T. Niida,
  • R. Nishitani,
  • L.V. Nogach,
  • T. Nonaka,
  • A.S. Nunes,
  • G. Odyniec,
  • A. Ogawa,
  • S. Oh,
  • V.A. Okorokov,
  • K. Okubo,
  • B.S. Page,
  • R. Pak,
  • J. Pan,
  • A. Pandav,
  • A.K. Pandey,
  • Y. Panebratsev,
  • P. Parfenov,
  • A. Paul,
  • B. Pawlik,
  • D. Pawlowska,
  • C. Perkins,
  • L.S. Pinsky,
  • J. Pluta,
  • B.R. Pokhrel,
  • J. Porter,
  • M. Posik,
  • V. Prozorova,
  • N.K. Pruthi,
  • M. Przybycien,
  • J. Putschke,
  • H. Qiu,
  • A. Quintero,
  • C. Racz,
  • S.K. Radhakrishnan,
  • N. Raha,
  • R.L. Ray,
  • R. Reed,
  • H.G. Ritter,
  • M. Robotkova,
  • O.V. Rogachevskiy,
  • J.L. Romero,
  • D. Roy,
  • L. Ruan,
  • A.K. Sahoo,
  • N.R. Sahoo,
  • H. Sako,
  • S. Salur,
  • E. Samigullin,
  • J. Sandweiss,
  • S. Sato,
  • W.B. Schmidke,
  • N. Schmitz,
  • B.R. Schweid,
  • F. Seck,
  • J. Seger,
  • R. Seto,
  • P. Seyboth,
  • N. Shah,
  • E. Shahaliev,
  • P.V. Shanmuganathan,
  • M. Shao,
  • T. Shao,
  • R. Sharma,
  • A.I. Sheikh,
  • D.Y. Shen,
  • S.S. Shi,
  • Y. Shi,
  • Q.Y. Shou,
  • E.P. Sichtermann,
  • R. Sikora,
  • J. Singh,
  • S. Singha,
  • P. Sinha,
  • M.J. Skoby,
  • N. Smirnov,
  • Y. Söhngen,
  • W. Solyst,
  • Y. Song,
  • H.M. Spinka,
  • B. Srivastava,
  • T.D.S. Stanislaus,
  • M. Stefaniak,
  • D.J. Stewart,
  • M. Strikhanov,
  • B. Stringfellow,
  • A.A.P. Suaide,
  • M. Sumbera,
  • B. Summa,
  • X.M. Sun,
  • X. Sun,
  • Y. Sun,
  • Y. Sun,
  • B. Surrow,
  • D.N. Svirida,
  • Z.W. Sweger,
  • P. Szymanski,
  • A.H. Tang,
  • Z. Tang,
  • A. Taranenko,
  • T. Tarnowsky,
  • J.H. Thomas,
  • A.R. Timmins,
  • D. Tlusty,
  • T. Todoroki,
  • M. Tokarev,
  • C.A. Tomkiel,
  • S. Trentalange,
  • R.E. Tribble,
  • P. Tribedy,
  • S.K. Tripathy,
  • T. Truhlar,
  • B.A. Trzeciak,
  • O.D. Tsai,
  • Z. Tu,
  • T. Ullrich,
  • D.G. Underwood,
  • I. Upsal,
  • G. Van Buren,
  • J. Vanek,
  • A.N. Vasiliev,
  • I. Vassiliev,
  • V. Verkest,
  • F. Videbæk,
  • S. Vokal,
  • S.A. Voloshin,
  • F. Wang,
  • G. Wang,
  • J.S. Wang,
  • P. Wang,
  • X. Wang,
  • Y. Wang,
  • Y. Wang,
  • Z. Wang,
  • J.C. Webb,
  • P.C. Weidenkaff,
  • G.D. Westfall,
  • H. Wieman,
  • S.W. Wissink,
  • R. Witt,
  • J. Wu,
  • J. Wu,
  • Y. Wu,
  • B. Xi,
  • Z.G. Xiao,
  • G. Xie,
  • W. Xie,
  • H. Xu,
  • N. Xu,
  • Q.H. Xu,
  • Y. Xu,
  • Z. Xu,
  • Z. Xu,
  • G. Yan,
  • C. Yang,
  • Q. Yang,
  • S. Yang,
  • Y. Yang,
  • Z. Ye,
  • Z. Ye,
  • L. Yi,
  • K. Yip,
  • Y. Yu,
  • H. Zbroszczyk,
  • W. Zha,
  • C. Zhang,
  • D. Zhang,
  • J. Zhang,
  • S. Zhang,
  • S. Zhang,
  • Y. Zhang,
  • Y. Zhang,
  • Y. Zhang,
  • Z.J. Zhang,
  • Z. Zhang,
  • Z. Zhang,
  • F. Zhao,
  • J. Zhao,
  • M. Zhao,
  • C. Zhou,
  • Y. Zhou,
  • X. Zhu,
  • M. Zurek,
  • M. Zyzak

Journal volume & issue
Vol. 827
p. 136941

Abstract

Read online

In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of this scaling and dominance of baryonic interactions is found for identified hadron collective flow measurements in sNN = 3 GeV Au+Au collisions. In this paper, we report measurements of the first- and second-order azimuthal anisotropic parameters, v1 and v2, of light nuclei (d, t, 3He, 4He) produced in sNN = 3 GeV Au+Au collisions at the STAR experiment. An atomic mass number scaling is found in the measured v1 slopes of light nuclei at mid-rapidity. For the measured v2 magnitude, a strong rapidity dependence is observed. Unlike v2 at higher collision energies, the v2 values at mid-rapidity for all light nuclei are negative and no scaling is observed with the atomic mass number. Calculations by the Jet AA Microscopic Transport Model (JAM), with baryonic mean-field plus nucleon coalescence, are in good agreement with our observations, implying baryonic interactions dominate the collective dynamics in 3 GeV Au+Au collisions at RHIC.