CERN Accelerating science

Article
Report number arXiv:2303.09074
Title Hyperon Polarization along the Beam Direction Relative to the Second and Third Harmonic Event Planes in Isobar Collisions at sNN=200GeV
Author(s)

Abdulhamid, Muhammad (American U., Cairo) ; Aboona, Bassam (Texas A-M) ; Adam, Jaroslav (Prague, Tech. U.) ; Adams, Joseph (Ohio State U.) ; Agakishiev, Geydar (Dubna, JINR) ; Aggarwal, Ishu (Panjab U., Chandigarh) ; Aggarwal, Madan (Panjab U., Chandigarh) ; Ahammed, Zubayer (Calcutta, VECC) ; Aitbaev, Alisher (Dubna, JINR) ; Alekseev, Igor (Moscow, ITEP ; Moscow Phys. Eng. Inst.) ; Anderson, Derek (Texas A-M) ; Aparin, Alexey (Dubna, JINR) ; Aslam, Sameer (NITP, Patna) ; Atchison, Joseph (Abilene Christian U.) ; Averichev, Georgy (Dubna, JINR) ; Bairathi, Vipul (Tarapaca U.) ; Baker, William (UC, Riverside) ; Ball Cap, Jonathan Gonzalo (Houston U.) ; Barish, Kenneth (UC, Riverside) ; Bhagat, Pratibha (Jammu U.) ; Bhasin, Anju (Jammu U.) ; Bhatta, Somadutta (SUNY, Stony Brook) ; Bordyuzhin, I.G. (Moscow, ITEP) ; Brandenburg, James (Ohio State U.) ; Brandin, Andrei (Moscow Phys. Eng. Inst.) ; Cai, Xiang-Zhou (SINAP, Shanghai) ; Caines, Helen (Yale U.) ; Calderon de la Barca Sanchez, Manuel (UC, Davis) ; Cebra, Daniel (UC, Davis) ; Ceska, Jakub (Prague, Tech. U.) ; Chakaberia, Irakli (LBL, Berkeley) ; Chan, Brian (UCLA) ; Chang, Zilong (CERN) ; Chatterjee, Arghya (Natl. Inst. Tech., Durgapur) ; Chen, Ding (UC, Riverside) ; Chen, J. (Shandong U.) ; Chen, J.H. (Fudan U.) ; Chen, Zhenyu (Shandong U.) ; Cheng, Jianping (Tsinghua U., Beijing) ; Cheng, Yunshan (UCLA) ; Choudhury, Subikash (Fudan U.) ; Christie, Bill (Brookhaven) ; Christie, W. (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Chu, Xiaoxuan (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Crawford, H.J. (UC, Berkeley) ; Dale-Gau, Gabriel (Illinois U., Chicago) ; Das, Ayanabha (Prague, Tech. U.) ; Daugherity, Michael (Abilene Christian U.) ; Dedovich, Tatiana (Dubna, JINR) ; Deppner, I.M. (Heidelberg U.) ; Derevschikov, Anatoly (Serpukhov, IHEP) ; Dhamija, Arushi (Panjab U., Chandigarh) ; Di Carlo, Launa (Wayne State U.) ; Dixit, Prabhupada (IISER, Berhampur) ; Dong, Xin (LBL, Berkeley) ; Drachenberg, James (Abilene Christian U.) ; Duckworth, Eddie (Kent State U.) ; Dunlop, James (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Engelage, Jack (UC, Berkeley) ; Eppley, Geary (Rice U.) ; Esumi, ShinIchi (Tsukuba U.) ; Evdokimov, Olga (Illinois U., Chicago) ; Ewigleben, Annika (Lehigh U.) ; Eyser, Oleg (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Fatemi, Renee (Kentucky U.) ; Fazio, Salvatore (Calabria U. ; INFN, Cosenza) ; Feng, Chan-Jui (Taiwan, Natl. Cheng Kung U.) ; Feng, Yicheng (Purdue U.) ; Finch, Evan (Yale U.) ; Fisyak, Yuri (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Flor, Fernando (Yale U.) ; Fu, Chuan (Lanzhou, Inst. Modern Phys.) ; Gao, Taoya (Shandong U.) ; Geurts, Frank (Rice U.) ; Ghimire, Navagyan (Temple U.) ; Gibson, Adam (Valparaiso U., Indiana) ; Gopal, Krishan (IISER, Tirupati) ; Gou, Xingrui (Shandong U.) ; Grosnick, David (Valparaiso U., Indiana) ; Gupta, Anik (Jammu U.) ; Hamed, Ahmed (American U., Cairo) ; Han, Yiding (Rice U.) ; Harasty, Matthew (UC, Davis) ; Harris, J.W. (Yale U.) ; Harrison-Smith, Hannah (Kentucky U.) ; He, Wanbing (Fudan U.) ; He, Xionghong (Lanzhou, Inst. Modern Phys.) ; He, Yang (Shandong U.) ; Hu, Chenlu (Beijing, GUCAS) ; Hu, Qiang (Lanzhou, Inst. Modern Phys.) ; Hu, Y. (LBL, Berkeley) ; Huang, H. (Taiwan, Natl. Cheng Kung U.) ; Huang, H.Z. (UCLA) ; Huang, Shengli (SUNY, Stony Brook) ; Huang, Te-Chuan (Illinois U., Chicago) ; Huang, Xinjie (Tsinghua U., Beijing) ; Huang, Y. (Tsinghua U., Beijing) ; Huang, Y. (Hua-Zhong Normal U.) ; Humanic, T.J. (Ohio State U.) ; Isenhower, Donald (Abilene Christian U.) ; Isshiki, Moe (Tsukuba U.) ; Jacobs, William (CERN) ; Jalotra, Ashish (Jammu U.) ; Jena, Chitrasen (IISER, Tirupati) ; Ji, Yuanjing (LBL, Berkeley) ; Jia, Jiangyong (SUNY, Stony Brook ; Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Jin, Chenliang (Rice U.) ; Ju, Xinyue (Hefei, CUST) ; Judd, Eleanor (UC, Berkeley) ; Kabana, Sonia (Tarapaca U.) ; Kabir, Md Latiful (UC, Riverside) ; Kalinkin, Dmitry (Kentucky U.) ; Kang, Kejun (Tsinghua U., Beijing) ; Kapukchyan, David (UC, Riverside) ; Kauder, Kolja (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Keane, Declan (Kent State U.) ; Kechechyan, Armen (Dubna, JINR) ; Kelsey, Matthew (Wayne State U.) ; Kimelman, Benjamin (UC, Davis) ; Kiselev, Alexander (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Knospe, Anders (Lehigh U.) ; Ko, Ho San (LBL, Berkeley) ; Kochenda, Leonid (Moscow Phys. Eng. Inst.) ; Korobitsin, Artem (Dubna, JINR) ; Kravtsov, Petr (Moscow Phys. Eng. Inst.) ; Kumar, Lokesh (Panjab U., Chandigarh) ; Kumar, Shyam (Lanzhou, Inst. Modern Phys.) ; Kunnawalkam Elayavalli, Raghav (Yale U.) ; Lacey, Roy (SUNY, Stony Brook) ; Landgraf, Jeffery (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Lebedev, Alexei (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Lednicky, Richard (Dubna, JINR) ; Lee, Jeong-Hun (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Leung, Yue-Hang (Heidelberg U.) ; Lewis, Nicole (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Li, Changfeng (Shandong U.) ; Li, Wei (Rice U.) ; Li, Xiujun (Hefei, CUST) ; Li, Y. (Hefei, CUST) ; Li, Y. (Tsinghua U., Beijing) ; Li, Ziyang (Hefei, CUST) ; Liang, Xilin (UC, Riverside) ; Liang, Yue (Kent State U.) ; Lin, Ting (Shandong U.) ; Liu, Chengyang (Lanzhou, Inst. Modern Phys.) ; Liu, Feng (Hua-Zhong Normal U.) ; Liu, Guoming (South China Normal U.) ; Liu, H. (CERN) ; Liu, H. (Hua-Zhong Normal U.) ; Liu, Li-ke (Hua-Zhong Normal U.) ; Liu, Tong (Yale U.) ; Liu, Xiaoyu (Ohio State U.) ; Liu, Yanfang (Texas A-M) ; Liu, Zuowen (Hua-Zhong Normal U.) ; Ljubicic, Tonko (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Llope, W.J. (Wayne State U.) ; Lomicky, Ondrej (Prague, Tech. U.) ; Longacre, R.S. (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Loyd, E.M. (UC, Riverside) ; Lu, Tan (Lanzhou, Inst. Modern Phys.) ; Lukow, Nicholas (Temple U.) ; Luo, Xiaofeng (Hua-Zhong Normal U.) ; Luong, V.B. (Dubna, JINR) ; Ma, Long (Fudan U.) ; Ma, Rongrong (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Ma, Yu-Gang (Fudan U.) ; Magdy Abdelwahab Abdelrahman, Niseem (SUNY, Stony Brook) ; Mallick, Debasish (NISER, Jatni) ; Margetis, Spiros (Kent State U.) ; Matis, Howard (LBL, Berkeley) ; Mazer, J.A. (Rutgers U., Piscataway) ; McNamara, Grant (Wayne State U.) ; Mi, K. (Hua-Zhong Normal U.) ; Minaev, Nikolai (Serpukhov, IHEP) ; Mohanty, Bedanga (NISER, Jatni) ; Mondal, Mriganka (NISER, Jatni) ; Mooney, Isaac (Yale U.) ; Morozov, Dmitry (Serpukhov, IHEP) ; Mudrokh, Aleksandr (Dubna, JINR) ; Nagy, Marton (Eotvos U.) ; Nain, Ankita (Panjab U., Chandigarh) ; Nam, J.D. (Temple U.) ; Nasim, M. (IISER, Berhampur) ; Neff, Dylan (UCLA) ; Nelson, J.M. (UC, Berkeley) ; Nemes, Daniel (Yale U.) ; Nie, Maowu (Shandong U.) ; Nigmatkulov, Grigory (Illinois U., Chicago) ; Niida, Takafumi (Tsukuba U.) ; Nishitani, Risa (Tsukuba U.) ; Nogach, Larisa (Serpukhov, IHEP) ; Nonaka, Toshihiro (Tsukuba U.) ; Odyniec, Grazyna (LBL, Berkeley) ; Ogawa, Akio (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Oh, Saehanseul (Sejong U.) ; Okorokov, Vitalii (Moscow Phys. Eng. Inst.) ; Okubo, Kosuke (Tsukuba U.) ; Page, Brian (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Pak, Robert (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Pan, Jinjin (Texas A-M) ; Pandav, Ashish (NISER, Jatni) ; Pandey, Ashutosh (Lanzhou, Inst. Modern Phys.) ; Panebratsev, Yuri (Dubna, JINR) ; Pani, Tanmay (Rutgers U., Piscataway) ; Parfenov, Petr (Moscow Phys. Eng. Inst.) ; Paul, Ananya (UC, Riverside) ; Perkins, Chris (UC, Berkeley) ; Pokhrel, B.R. (Temple U.) ; Posik, Matthew (Temple U.) ; Protzman, Tristan (Lehigh U.) ; Pruthi, Navneet Kumar (Panjab U., Chandigarh) ; Putschke, Joern (Wayne State U.) ; Qin, Zhi (Tsinghua U., Beijing) ; Qiu, Hao (Lanzhou, Inst. Modern Phys.) ; Quintero, Amilkar (Temple U.) ; Racz, Cameron (UC, Riverside) ; Radhakrishnan, Sooraj (Kent State U.) ; Raha, Nandita (Wayne State U.) ; Ray, Lanny (Texas U.) ; Ritter, Hans Georg (LBL, Berkeley) ; Robertson, Charles (Purdue U.) ; Rogachevskiy, Oleg (Dubna, JINR) ; Rosales Aguilar, Manuel (Kentucky U.) ; Roy, Diptanil (Rutgers U., Piscataway) ; Ruan, Lijuan (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Sahoo, Aswini (IISER, Berhampur) ; Sahoo, Nihar (Texas A-M) ; Sako, Hiroyuki (Tsukuba U.) ; Salur, Sevil (Rutgers U., Piscataway) ; Samigullin, Edward (Moscow, ITEP) ; Sato, Susumu (Tsukuba U.) ; Schmidke, W.B. (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Schmitz, Norbert (Munich, Max Planck Inst.) ; Seger, Janet (Creighton U.) ; Seto, Richard (UC, Riverside) ; Seyboth, Peter (Munich, Max Planck Inst.) ; Shah, Neha (NITP, Patna) ; Shahaliev, Ehtiram (Dubna, JINR) ; Shanmuganathan, Prashanth (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Shao, Tianhao (Fudan U.) ; Sharma, Mahima (Jammu U.) ; Sharma, Natasha (IISER, Berhampur) ; Sharma, Rishabh (IISER, Tirupati) ; Sharma, Sharang Rav (IISER, Tirupati) ; Sheikh, Ashik Ikbal (Kent State U.) ; Shen, D. (Shandong U.) ; Shen, D.Y. (Fudan U.) ; Shen, Kaifeng (Hefei, CUST) ; Shi, Shusu (Hua-Zhong Normal U.) ; Shi, Yingying (Shandong U.) ; Shou, Qi-Ye (Fudan U.) ; Si, Fan (Hefei, CUST) ; Singh, Jagbir (Panjab U., Chandigarh) ; Singha, Subhash (Lanzhou, Inst. Modern Phys.) ; Sinha, Priyanshi (IISER, Tirupati) ; Skoby, Michael (Ball Aerospace Tech., Boulder ; Purdue U.) ; Soehngen, Yannick (Heidelberg U.) ; Song, Youqi (Yale U.) ; Srivastava, Brijesh (Purdue U.) ; Stanislaus, Shirvel (Valparaiso U., Indiana) ; Stewart, David (Wayne State U.) ; Strikhanov, Mikhail (Moscow Phys. Eng. Inst.) ; Stringfellow, Blair (Purdue U.) ; Su, Yuan (Hefei, CUST) ; Sun, Chuan (SUNY, Stony Brook) ; Sun, X. (Lanzhou, Inst. Modern Phys.) ; Sun, Y. (Hefei, CUST) ; Sun, Y. (Huzhou U.) ; Surrow, Bernd (Temple U.) ; Svirida, Dmitry (Moscow, ITEP) ; Sweger, Zachary (UC, Davis) ; Tamis, Andrew (Yale U.) ; Tang, Aihong (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Tang, Zebo (Hefei, CUST) ; Taranenko, Arkadiy (Moscow Phys. Eng. Inst.) ; Tarnowsky, Terry (Michigan State U.) ; Thomas, J.H. (LBL, Berkeley) ; Tlusty, David (Creighton U.) ; Todoroki, Takahito (Tsukuba U.) ; Tokarev, Michael (Dubna, JINR) ; Tomkiel, Catherine (Lehigh U.) ; Trentalange, Steven (UCLA) ; Tribble, Robert (Texas A-M) ; Tribedy, Prithwish (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Tsai, O.D. (UCLA ; Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Tsang, Chun Yuen (Kent State U. ; Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Tu, Zhoudunming (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Tyler, Jace (Texas A-M) ; Ullrich, Thomas (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Underwood, D.G. (Valparaiso U., Indiana ; Argonne) ; Upsal, Isaac (Hefei, CUST) ; Van Buren, Gene (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Vasiliev, Alexander (Moscow Phys. Eng. Inst. ; Serpukhov, IHEP) ; Verkest, Veronica (Wayne State U.) ; Videbaek, Flemming (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Vokal, Stanislav (Dubna, JINR) ; Voloshin, Sergei (Wayne State U.) ; Wang, Fuqiang (Purdue U.) ; Wang, Gang (UCLA) ; Wang, J.S. (Huzhou U.) ; Wang, J. (Shandong U.) ; Wang, Xiaofeng (Shandong U.) ; Wang, Y. (Hefei, CUST) ; Wang, Y. (Hua-Zhong Normal U.) ; Wang, Y. (Tsinghua U., Beijing) ; Wang, Zhen (Shandong U.) ; Webb, Jason (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Weidenkaff, Philipp (Heidelberg U.) ; Westfall, G.D. (Michigan State U.) ; Wieman, Howard (LBL, Berkeley) ; Wilks, Gavin (Illinois U., Chicago) ; Wissink, Scott (CERN) ; Wu, J. (Hua-Zhong Normal U.) ; Wu, J. (Lanzhou, Inst. Modern Phys.) ; Wu, X. (UCLA) ; Wu, X. (Hefei, CUST) ; Wu, Yang (UC, Riverside) ; Xi, Baoshan (Fudan U.) ; Xiao, Zhigang (Tsinghua U., Beijing) ; Xie, Guannan (Beijing, GUCAS) ; Xie, Wei (Purdue U.) ; Xu, Haojie (Huzhou U.) ; Xu, N. (LBL, Berkeley) ; Xu, Qinghua (Shandong U.) ; Xu, Y. (Shandong U.) ; Xu, Y. (Hua-Zhong Normal U.) ; Xu, Z. (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Xu, Z. (UCLA) ; Yan, Gaoguo (Shandong U.) ; Yan, Zhengxi (SUNY, Stony Brook) ; Yang, Chi (Shandong U.) ; Yang, Qian (Shandong U.) ; Yang, Shuai (South China Normal U.) ; Yang, Y. (Taiwan, Natl. Cheng Kung U.) ; Ye, Z. (Rice U.) ; Ye, Z. (Illinois U., Chicago) ; Yi, L. (Shandong U.) ; Yip, Kin (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Yu, Y. (Shandong U.) ; Zha, Wangmei (Hefei, CUST) ; Zhang, ChunJian (SUNY, Stony Brook) ; Zhang, Dingwei (Hua-Zhong Normal U.) ; Zhang, Jinlong (Shandong U.) ; Zhang, Shenghui (Hefei, CUST) ; Zhang, Wei (South China Normal U.) ; Zhang, Xin (Lanzhou, Inst. Modern Phys.) ; Zhang, Y. (Lanzhou, Inst. Modern Phys.) ; Zhang, Y. (Hefei, CUST) ; Zhang, Y. (Shandong U.) ; Zhang, Y. (Hua-Zhong Normal U.) ; Zhang, Z.J. (Taiwan, Natl. Cheng Kung U.) ; Zhang, Z. (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Zhang, Z. (Illinois U., Chicago) ; Zhao, Fengyi (Lanzhou, Inst. Modern Phys.) ; Zhao, Jie (Fudan U.) ; Zhao, Minghui (Brookhaven Natl. Lab., Dept. Phys. ; Brookhaven) ; Zhou, Chensheng (Fudan U.) ; Zhou, Jian (Hefei, CUST) ; Zhou, Shuai (Hua-Zhong Normal U.) ; Zhou, Yingjie (Hua-Zhong Normal U.) ; Zhu, Xianglei (Tsinghua U., Beijing) ; Zurek, Maria (Argonne ; Brookhaven) ; Zyzak, Maksym (Frankfurt U., FIAS)

Publication 2023-11-14
Imprint 2023-03-16
Number of pages 7
Note 6 pages, 5 figures, Published in Physical Review Letters
In: Phys. Rev. Lett. 131 (2023) 202301
DOI 10.1103/PhysRevLett.131.202301 (publication)
Subject category nucl-ex ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment BNL RHIC STAR
Abstract 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 first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. The amplitudes of the sine modulation for the second and third harmonic results are comparable in magnitude, increase from central to peripheral collisions, and show a mild $p_T$ dependence. The azimuthal angle dependence of the polarization follows the vorticity pattern expected due to elliptic and triangular anisotropic flow, and qualitatively disagree with most hydrodynamic model calculations based on thermal vorticity and shear induced contributions. The model results based on one of existing implementations of the shear contribution lead to a correct azimuthal angle dependence, but predict centrality and $p_T$ dependence that still disagree with experimental measurements. Thus, our results provide stringent constraints on the thermal vorticity and shear-induced contributions to hyperon polarization. Comparison to previous measurements at RHIC and the LHC for the second-order harmonic results shows little dependence on the collision system size and collision energy.
Copyright/License preprint: (License: CC BY-NC-ND 4.0)
publication: © 2023 American Physical Society



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