Related papers: Global $\Lambda$-hyperon polarization in Au+Au col…

The $\Lambda\Lambda$ Correlation Function in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV

We present $\Lambda\Lambda$ correlation measurements in heavy-ion collisions for Au+Au collisions at $\sqrt{s_{NN}}= 200$ GeV using the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). The Lednick\'{y}-Lyuboshitz analytical…

Nuclear Experiment · Physics 2014-12-17 STAR Collaboration

Acceptance effects in the hyperons global polarization measurement

The possible sources of systematic uncertainties in the hyperons global polarization measurement are discussed. The equation with detector acceptance effects taken into account is provided. Contribution of the hyperons directed flow into…

Nuclear Experiment · Physics 2019-08-14 Ilya Selyuzhenkov

Global $\Lambda$ hyperon polarization in nuclear collisions: evidence for the most vortical fluid

The extreme temperatures and energy densities generated by ultra-relativistic collisions between heavy nuclei produce a state of matter with surprising fluid properties. Non-central collisions have angular momentum on the order of…

Nuclear Experiment · Physics 2017-08-29 STAR Collaboration

Searching for the Subatomic Swirls in the CuCu and CuAu Collisions

Recently the STAR Collaboration discovered the "subatomic swirls", that is, the most vortical fluid flow structures in the quark-gluon plasma produced via the AuAu collisions at the Relativistic Heavy Ion Collider (RHIC). Published in…

Nuclear Theory · Physics 2017-12-05 Shuzhe Shi , Kangle Li , Jinfeng Liao

Global quark polarization in non-central $A+A$ collisions

Partons produced in the early stage of non-central heavy-ion collisions can develop a longitudinal fluid shear because of unequal local number densities of participant target and projectile nucleons. Under such fluid shear, local parton…

Nuclear Theory · Physics 2008-11-26 Jian-Hua Gao , Shou-Wan Chen , Wei-tian Deng , Zuo-Tang Liang , Qun Wang , Xin-Nian Wang

Higher-Order Cumulants and Correlation Functions of Proton Multiplicity Distributions in $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV Au+Au Collisions at the RHIC STAR Experiment

We report a measurement of cumulants and correlation functions of event-by-event proton multiplicity distributions from fixed-target Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 3 GeV measured by the STAR experiment. Protons are identified…

Nuclear Experiment · Physics 2023-02-24 STAR Collaboration , M. S. Abdallah , B. E. Aboona , J. Adam , L. Adamczyk , J. R. Adams , J. K. Adkins , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , D. M. Anderson , E. C. Aschenauer , J. Atchison , V. Bairathi , W. Baker , J. G. Ball Cap , K. Barish , R. Bellwied , P. Bhagat , A. Bhasin , S. Bhatta , J. Bielcik , J. Bielcikova , J. D. Brandenburg , X. Z. Cai , H. Caines , M. Calderón~de~la~Barca~Sánchez , D. Cebra , I. Chakaberia , P. Chaloupka , B. K. Chan , Z. Chang , A. Chatterjee , D. Chen , J. Chen , J. H. Chen , X. Chen , Z. Chen , J. Cheng , Y. Cheng , S. Choudhury , W. Christie , X. Chu , H. J. Crawford , M. Csanád , M. Daugherity , I. M. Deppner , 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 , 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 , C. Jin , 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 , M. Kelsey , Y. V. Khyzhniak , D. P. Kikoła , B. Kimelman , D. Kincses , I. Kisel , A. Kiselev , A. G. Knospe , H. S. Ko , L. K. Kosarzewski , L. Kramarik , L. Kumar , S. Kumar , R. Kunnawalkam Elayavalli , J. H. Kwasizur , R. Lacey , S. Lan , J. M. Landgraf , J. Lauret , A. Lebedev , J. H. Lee , Y. H. Leung , N. Lewis , C. Li , C. Li , W. Li , W. Li , X. Li , Y. Li , Y. Li , Z. Li , X. Liang , Y. Liang , R. Licenik , T. Lin , Y. Lin , M. A. Lisa , F. Liu , H. Liu , H. Liu , T. Liu , X. Liu , Y. 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. Margetis , C. Markert , H. S. Matis , J. A. Mazer , G. McNamara , S. Mioduszewski , B. Mohanty , M. M. Mondal , I. Mooney , A. Mukherjee , M. I. Nagy , A. S. Nain , J. D. Nam , Md. Nasim , K. Nayak , D. Neff , J. M. Nelson , D. B. Nemes , M. Nie , T. Niida , R. Nishitani , T. Nonaka , A. S. Nunes , G. Odyniec , A. Ogawa , S. Oh , K. Okubo , B. S. Page , R. Pak , J. Pan , A. Pandav , A. K. Pandey , T. Pani , A. Paul , B. Pawlik , D. Pawlowska , C. Perkins , J. Pluta , B. R. Pokhrel , J. Porter , M. Posik , T. Protzman , V. Prozorova , N. K. Pruthi , M. Przybycien , J. Putschke , Z. Qin , H. Qiu , A. Quintero , C. Racz , S. K. Radhakrishnan , N. Raha , R. L. Ray , R. Reed , H. G. Ritter , M. Robotkova , J. L. Romero , D. Roy , P. Roy Chowdhury , L. Ruan , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , S. Sato , W. B. Schmidke , N. Schmitz , F-J. Seck , J. Seger , R. Seto , P. Seyboth , N. Shah , P. V. Shanmuganathan , M. Shao , T. Shao , R. Sharma , A. I. Sheikh , D. Y. Shen , K. 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 , B. Srivastava , T. D. S. Stanislaus , M. Stefaniak , D. J. Stewart , B. Stringfellow , A. A. P. Suaide , M. Sumbera , C. Sun , X. M. Sun , X. Sun , Y. Sun , Y. Sun , B. Surrow , Z. W. Sweger , P. Szymanski , A. H. Tang , Z. Tang , T. Tarnowsky , J. H. Thomas , A. R. Timmins , D. Tlusty , T. Todoroki , C. A. Tomkiel , S. Trentalange , R. E. Tribble , P. Tribedy , S. K. Tripathy , T. Truhlar , B. A. Trzeciak , O. D. Tsai , C. Y. Tsang , Z. Tu , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , J. Vanek , I. Vassiliev , V. Verkest , F. Videbæk , 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 , D. Wielanek , H. Wieman , S. W. Wissink , R. Witt , J. Wu , J. Wu , X. 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 , Z. 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 , J. Zhou , Y. Zhou , X. Zhu , M. Zurek , M. Zyzak

Light Hypernuclei Production in Au+Au Collisions at $\sqrt{s_{NN}}=$ 3 GeV within Thermodynamic Approach

Simulations of the $\Lambda$-hyperon and light-hypernuclei production in Au+Au collisions at $\sqrt{s_{NN}}=$ 3 GeV were performed within updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (Ultra-relativistic Quantum…

Nuclear Theory · Physics 2024-03-06 M. Kozhevnikova , Yu. B. Ivanov

Hyperon polarization along the beam direction relative to the second and third harmonic event planes in isobar collisions at $\sqrt{s_{NN}}$ = 200 GeV

The polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV. This is the…

Nuclear Experiment · Physics 2023-11-21 STAR Collaboration , M. I. Abdulhamid , B. E. Aboona , J. Adam , J. R. Adams , G. Agakishiev , I. Aggarwal , M. M. Aggarwal , Z. Ahammed , A. Aitbaev , I. Alekseev , D. M. Anderson , A. Aparin , S. Aslam , J. Atchison , G. S. Averichev , V. Bairathi , W. Baker , J. G. Ball Cap , K. Barish , P. Bhagat , A. Bhasin , S. Bhatta , I. G. Bordyuzhin , J. D. Brandenburg , A. V. Brandin , X. Z. Cai , H. Caines , M. Calderón de la Barca Sánchez , D. Cebra , J. Ceska , I. Chakaberia , B. K. Chan , Z. Chang , A. Chatterjee , D. Chen , J. Chen , J. H. Chen , Z. Chen , J. Cheng , Y. Cheng , S. Choudhury , W. Christie , X. Chu , H. J. Crawford , G. Dale-Gau , A. Das , M. Daugherity , T. G. Dedovich , I. M. Deppner , A. A. Derevschikov , A. Dhamija , L. Di Carlo , 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 , S. Fazio , C. J. Feng , Y. Feng , E. Finch , Y. Fisyak , F. A. Flor , C. Fu , T. Gao , F. Geurts , N. Ghimire , A. Gibson , K. Gopal , X. Gou , D. Grosnick , A. Gupta , A. Hamed , Y. Han , M. D. Harasty , J. W. Harris , H. Harrison-Smith , W. He , X. H. He , Y. He , C. Hu , Q. Hu , Y. Hu , H. Huang , H. Z. Huang , S. L. Huang , T. Huang , X. Huang , Y. Huang , Y. Huang , T. J. Humanic , D. Isenhower , M. Isshiki , W. W. Jacobs , A. Jalotra , C. Jena , Y. Ji , J. Jia , C. Jin , X. Ju , E. G. Judd , S. Kabana , M. L. Kabir , D. Kalinkin , K. Kang , D. Kapukchyan , K. Kauder , D. Keane , A. Kechechyan , M. Kelsey , B. Kimelman , A. Kiselev , A. G. Knospe , H. S. Ko , L. Kochenda , A. A. Korobitsin , P. Kravtsov , L. Kumar , S. Kumar , R. Kunnawalkam Elayavalli , R. Lacey , J. M. Landgraf , A. Lebedev , R. Lednicky , J. H. Lee , Y. H. Leung , N. Lewis , C. Li , W. Li , X. Li , Y. Li , Y. Li , Z. Li , X. Liang , Y. Liang , T. Lin , C. Liu , F. Liu , G. Liu , H. Liu , H. Liu , L. Liu , T. Liu , X. Liu , Y. Liu , Z. Liu , T. Ljubicic , W. J. Llope , O. Lomicky , R. S. Longacre , E. M. Loyd , T. Lu , N. S. Lukow , X. F. Luo , V. B. Luong , L. Ma , R. Ma , Y. G. Ma , N. Magdy , D. Mallick , S. Margetis , H. S. Matis , J. A. Mazer , G. McNamara , K. Mi , N. G. Minaev , B. Mohanty , M. M. Mondal , I. Mooney , D. A. Morozov , A. Mudrokh , M. I. Nagy , A. S. Nain , J. D. Nam , M. Nasim , D. Neff , J. M. Nelson , D. B. Nemes , M. Nie , G. Nigmatkulov , T. Niida , R. Nishitani , L. V. Nogach , T. Nonaka , 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 , T. Pani , P. Parfenov , A. Paul , C. Perkins , B. R. Pokhrel , M. Posik , T. Protzman , N. K. Pruthi , J. Putschke , Z. Qin , H. Qiu , A. Quintero , C. Racz , S. K. Radhakrishnan , N. Raha , R. L. Ray , H. G. Ritter , C. W. Robertson , O. V. Rogachevsky , M. A. Rosales Aguilar , D. Roy , L. Ruan , A. K. Sahoo , N. R. Sahoo , H. Sako , S. Salur , E. Samigullin , S. Sato , W. B. Schmidke , N. Schmitz , J. Seger , R. Seto , P. Seyboth , N. Shah , E. Shahaliev , P. V. Shanmuganathan , T. Shao , M. Sharma , N. Sharma , R. Sharma , S. R. Sharma , A. I. Sheikh , D. Shen , D. Y. Shen , K. Shen , S. S. Shi , Y. Shi , Q. Y. Shou , F. Si , J. Singh , S. Singha , P. Sinha , M. J. Skoby , Y. Söhngen , Y. Song , B. Srivastava , T. D. S. Stanislaus , D. J. Stewart , M. Strikhanov , B. Stringfellow , Y. Su , C. Sun , X. Sun , Y. Sun , Y. Sun , B. Surrow , D. N. Svirida , Z. W. Sweger , A. Tamis , A. H. Tang , Z. Tang , A. Taranenko , T. Tarnowsky , J. H. Thomas , D. Tlusty , T. Todoroki , M. V. Tokarev , C. A. Tomkiel , S. Trentalange , R. E. Tribble , P. Tribedy , O. D. Tsai , C. Y. Tsang , Z. Tu , J. Tyler , T. Ullrich , D. G. Underwood , I. Upsal , G. Van Buren , A. N. Vasiliev , V. Verkest , F. Videbæk , S. Vokal , S. A. Voloshin , F. Wang , G. Wang , J. S. Wang , J. Wang , X. Wang , Y. Wang , Y. Wang , Y. Wang , Z. Wang , J. C. Webb , P. C. Weidenkaff , G. D. Westfall , H. Wieman , G. Wilks , S. W. Wissink , J. Wu , J. Wu , X. Wu , X. Wu , Y. Wu , B. Xi , Z. G. Xiao , G. Xie , W. Xie , H. Xu , N. Xu , Q. H. Xu , Y. Xu , Y. Xu , Z. Xu , Z. Xu , G. Yan , Z. Yan , C. Yang , Q. Yang , S. Yang , Y. Yang , Z. Ye , Z. Ye , L. Yi , K. Yip , Y. Yu , W. Zha , C. Zhang , D. Zhang , J. Zhang , S. Zhang , W. Zhang , X. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Y. Zhang , Z. J. Zhang , Z. Zhang , Z. Zhang , F. Zhao , J. Zhao , M. Zhao , C. Zhou , J. Zhou , S. Zhou , Y. Zhou , X. Zhu , M. Zurek , M. Zyzak

Polarization of Lambda^0 hyperons in nucleus-nucleus collisions at high energies

The measurement of Lambda^0 hyperons polarization in nucleus-nucleus collisions is considered as one of possible tools to study the phase transition. Fixed target and collider experiments are discussed for the case of Lambda^0's production…

Nuclear Experiment · Physics 2014-11-18 V. P. Ladygin , A. P. Jerusalimov , N. B. Ladygina

Collective flow of light nuclei and hyper-nuclei in Au+Au collisions at $\sqrt{s_{NN}}$ = 3, 14.6, 19.6, 27, and 54.4 GeV using the STAR detector

Light nuclei and hyper-nuclei are produced in abundance in heavy-ion collisions. The production mechanism of these species in heavy-ion collisions still remains to be understood. In these proceedings, we report the transverse momentum and…

Nuclear Experiment · Physics 2023-03-22 Rishabh Sharma

$\Lambda$ spin polarization in event-by-event relativistic heavy-ion collisions

We present a systematic study of $\Lambda$ hyperon's polarization observables using event-by-event (3+1)D relativistic hydrodynamics. The effects of initial hot spot size and QGP's specific shear viscosity on the polarization observables…

Nuclear Theory · Physics 2022-07-27 Sahr Alzhrani , Sangwook Ryu , Chun Shen

Recent progress on global and local polarization of hyperons in heavy-ion collisions

Since the observation of $\Lambda$ global polarization at RHIC, indicating the most vortical fluid ever observed so far, many experimental and theoretical progresses have been made in understanding of vorticity and polarization phenomena in…

Nuclear Experiment · Physics 2022-11-30 Takafumi Niida

Lambda hyperon production and polarization in collisions of p(3.5 GeV) + Nb

Results on $\Lambda$ hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. The transverse…

Nuclear Experiment · Physics 2014-05-08 G. Agakishiev , O. Arnold , A. Balanda , D. Belver , A. V. Belyaev , J. C. Berger-Chen , A. Blanco , M. Böhmer , J. L. Boyard , P. Cabanelas , S. Chernenko , A. Dybczak , E. Epple , L. Fabbietti , O. V. Fateev , P. Finocchiaro , P. Fonte , J. Friese , I. Fröhlich , T. Galatyuk , J. A. Garzon , R. Gernhäuser , K. Göbel , M. Golubeva , D. Gonzalez-Díaz , F. Guber , M. Gumberidze , T. Heinz , T. Hennino , R. Holzmann , A. Ierusalimov , I. Iori , A. Ivashkin , M. Jurkovic , B. Kämpfer , T. Karavicheva , I. Koenig , W. Koenig , B. W. Kolb , G. Kornakov , R. Kotte , A. Krasa , F. Krizek , R. Krücken , H. Kuc , W. Kühn , A. Kugler , A. Kurepin , V. Ladygin , R. Lalik , S. Lang , K. Lapidus , A. Lebedev , T. Liu , L. Lopes , M. Lorenz , L. Maier , A. Mangiarotti , J. Markert , V. Metag , B. Michalska , J. Michel , C. Müntz , L. Naumann , Y. C. Pachmayer , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , J. Pietraszko , W. Przygoda , B. Ramstein , A. Reshetin , A. Rustamov , A. Sadovsky , P. Salabura , A. Schmah , E. Schwab , J. Siebenson , Yu. G. Sobolev , S. Spataro , B. Spruck , H. Ströbele , J. Stroth , C. Sturm , A. Tarantola , K. Teilab , P. Tlusty , M. Traxler , R. Trebacz , H. Tsertos , T. Vasiliev , V. Wagner , M. Weber , C. Wendisch , J. Wüstenfeld , S. Yurevich , Y. V. Zanevsky

From Hyperons to Hypernuclei: A New Route to Unravel Proton Spin Polarization

Ultra-relativistic nuclear collisions create the quark-gluon plasma (QGP) known as the hottest, least viscous, and most vortical fluid ever produced in terrestrial laboratories. Its vortical structure has been uncovered through the spin…

Nuclear Theory · Physics 2025-08-25 Dai-Neng Liu , Yun-Peng Zheng , Wen-Hao Zhou , Jin-Hui Chen , Che Ming Ko , Yu-Gang Ma , Kai-Jia Sun , Song Zhang

Measurements of $p$-$\Xi$, $\Lambda$-$\Lambda$, and $\Xi$-$\Xi$ Correlation in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV at RHIC-STAR

The hyperon-hyperon and hyperon-nucleon interactions are important in search for exotic hadrons such dibaryon as a bound state of two baryons. $\Lambda$-$\Lambda$ correlation has been measured in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ =…

Nuclear Experiment · Physics 2022-02-16 Moe Isshiki

Local and global polarization of $\Lambda$ hyperons across RHIC-BES energies: the roles of spin hall effect, initial condition and baryon diffusion

We perform a systematic study on the local and global spin polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in relativistic heavy-ion collisions at beam energy scan energies via the (3+1)-dimensional CLVisc hydrodynamics model…

High Energy Physics - Phenomenology · Physics 2022-06-28 Xiang-Yu Wu , Cong Yi , Guang-You Qin , Shi Pu

Measurement of Kaon Directed Flow in Au+Au Collisions in the High Baryon Density Region

Rapidity-odd directed flow $v_1$ measurements are presented for $K^{\pm}$ and $K^0_S$ in Au$+$Au collisions at $\sqrt{s_{\text{NN}}}$ = 3.0, 3.2, 3.5, and 3.9 GeV with the STAR experiment. For comparison, $v_1$ of $\pi^{\pm}$, protons, and…

Nuclear Experiment · Physics 2026-04-01 STAR Collaboration

Probing Rotational Dynamics of Quark Gluon Plasma via Global Vorticity

The findings on the spin polarization of $\Lambda$, $\Xi$, and $\Omega$ hyperons and spin alignment of $K^{*0}$, $\phi$, and $D^{*+}$ mesons in relativistic heavy-ion collision experiments at the RHIC and LHC facilities propose the…

High Energy Physics - Phenomenology · Physics 2026-02-17 Bhagyarathi Sahoo , Captain R. Singh , Raghunath Sahoo

Multiplicity fluctuations in Au+Au collisions at $\sqrt{s_{NN}}=130$ GeV

We present the results of charged particle fluctuations measurements in Au + Au collisions at $\sqrt{s_{NN}}=130$ GeV using the STAR detector. Dynamical fluctuations measurements are presented for inclusive charged particle multiplicities…

Nuclear Experiment · Physics 2008-11-26 J. Adams

Probing vorticity structure in heavy-ion collisions by local $\Lambda$ polarization

We study the local structure of the vorticity field and the $\Lambda$ polarization in Au+Au collisions in the energy range $\sqrt{s_{\mathrm{NN}}}=7.7$--$200$ GeV and Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2760$ GeV using A Multi-Phase…

Nuclear Theory · Physics 2018-08-13 Xiao-Liang Xia , Hui Li , Zebo Tang , Qun Wang