Accès ouvert déclaré 2019 article

Polarization of Λ ( Λ ¯ ) Hyperons along the Beam Direction in Au + Au Collisions at s N N = 200 GeV

J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, D. M. Anderson, Y. G., A. Aparin, D. Arkhipkin, E. C. Aschenauer, M. U. Ashraf, F. Atetalla, A. Attri, G. S. Averichev, V. Bairathi, K. N. Barish, A. J. Bassill, A. Behera, R. Bellwied, A. Bhasin, A. K. Bhati, J. Bielčík, J. Bielčíková, L. C. Bland, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, J. Bryslawskyj, I. Bunzarov, J. M. Butterworth, H. Caines, M. Calderon De La Barca Sanchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J. H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, H. J. Crawford, M. Csanád, S. Das, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J. L. Drachenberg, J. C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorišin, Y. Feng, P. Filip, E. Finch, Y. Fisyak, Ł. Fulek, C. A. Gagliardi, T. Galatyuk, F. J. M. Geurts, S. M. Gibson, K. Gopal, D. Grosnick, A. Gupta, W. Guryn, A. I. Hamad, A. Hamed, J. W. Harris, L. He, S. Heppelmann, S. Heppelmann, N. Herrmann, L. Holub, Y. Hong, S. Horvat, Bo-Lin Huang, H. Z. Huang, S. L. Huang, Tao Huang, Xiaojin Huang, T. J. Humanic, G. Igo, W. W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E. G. Judd, S. Kabana, 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, Chong Kim, T. A. Kinghorn, I. Kisel, A. Kisiel, M. Kocan, L. Kochenda, L. K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, J. M. Landgraf, J. Lauret, A. Lebedev, R. Lednický, J. H. Lee, C. Li, W. Li, W. Li, X. Li, Y. Li, Y. T. Liang, R. Licenik, Y. Lin, A. Lipiec, M. A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Yong Liu, Z. Liu, T. Ljubičić, W. J. Llope, M. Lomnitz, R. S. Longacre, S. Luo, X. Luo, G. L., Lingling Ma, R. Ma, N. M. Abdelrahman, R. Majka, D. Mallick, S. Margetis, C. Markert, H. S. Matis, O. Matonoha, J. A. Mazer, K. Meehan, J. C. Mei, N. G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M. M. Mondal, I. Mooney, Z. Moravcová, D. A. Morozov, Md. Nasim, K. Nayak, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, K. Oh, S. Oh, В. А. Окороков, B. S. Page, R. Pak, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, R. L. Pintér, J. Pluta, J. Porter, M. Posik, N. K. Pruthi, M. Przybycień, J. Putschke, A. Quintero, S. K. Radhakrishnan, S. Ramachandran, R. L. Ray, R. Reed, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, L. Ruan, J. Rusňák, O. Rusnakova, N. R. Sahoo, Praveen Kumar Sahu, S. Salur, J. Sandweiss, J. Schambach, 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, F. Shen, W. Q. Shen, S. S. Shi, Q. Y. Shou, E. P. Sichtermann, S. Siejka, R. Sikora, M. Simko, J. B. Singh, S. Singha, D. Smirnov, N. Smirnov, W. Solyst, P. Sørensen, H. Spinka, B. K. Srivastava, T. D. S. Stanislaus, M. Stefaniak, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, T. Sugiura, M. Šumbera, B. Summa, X. Sun, Y. Sun, Y. Sun, B. Surrow, D. N. Svirida, P. Szymański, 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, O. D. Tsai, B. Tu, Z. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A. N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokál, S. A. Voloshin, F. Wang, G. Wang, P. Wang, Y. Wang, J. C. Webb, L. Wen, G. D. Westfall, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, Z. G. Xiao, G. Xie, W. Xie, Haibo Xu, Nan Xu, W. Xu, Yuehui Xu, N. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, D. Zhang, L. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Z. Zhang, J. Zhao, C. Zhong, Chao Zhou, X. Zhu, Z. H. Zhu, M. Źurek, M. Zyzak

245Citations signalées, ce qui n’est pas une note de qualité

65Institutions déclarées

13Pays d’affiliation déclarés

Rattachement africain : us, pl, ru, in, jp, cn, cz, tw, hu, de, Égypte, kr, br. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

The Λ (Λ[over ¯]) hyperon polarization along the beam direction has been measured in Au+Au collisions at sqrt[s_{NN}]=200 GeV, for the first time in heavy-ion collisions. The polarization dependence on the hyperons' emission angle relative to the elliptic flow plane exhibits a second harmonic sine modulation, indicating a quadrupole pattern of the vorticity component along the beam direction, expected due to elliptic flow. The polarization is found to increase in more peripheral collisions, and shows no strong transverse momentum (p_{T}) dependence at p_{T} greater than 1 GeV/c. The magnitude of the signal is about 5 times smaller than those predicted by hydrodynamic and multiphase transport models; the observed phase of the emission angle dependence is also opposite to these model predictions. In contrast, the kinematic vorticity calculations in the blast-wave model tuned to reproduce particle spectra, elliptic flow, and the azimuthal dependence of the Gaussian source radii measured with the Hanbury Brown-Twiss intensity interferometry technique reproduce well the modulation phase measured in the data and capture the centrality and transverse momentum dependence of the polarization signal.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref: Polarization of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mi mathvariant="normal">Λ</mml:mi> </mml:mrow> </mml:math> ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mover accent="true"> <mml:mi mathvariant="normal">Λ</mml:mi> <mml:mo stretchy="false">¯</mml:mo> </mml:mover> </mml:math> ) Hyperons along the Beam Direction in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mi>Au</mml:mi> <mml:mo>+</mml:mo> <mml:mi>Au</mml:mi> </mml:mrow>
Date Crossref: 27/09/2019
Éditeur: American Physical Society (APS)
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Creighton University AGH University of Krakow The Ohio State University University of Kentucky Joint Institute for Nuclear Research Panjab University Variable Energy Cyclotron Centre Institute for Theoretical and Experimental Physics National Research Nuclear University MEPhI Texas A&M University University of Tsukuba Brookhaven National Laboratory Tsinghua University Kent State University National Institute of Science Education and Research University of California, Riverside State University of New York Stony Brook University University of Houston University of Jammu Czech Technical University in Prague Czech Academy of Sciences, Nuclear Physics Institute Shandong University Rice University Yale University University of California, Davis University of California, Los Angeles National Cheng Kung University Fudan University University of Science and Technology of China University of California, Berkeley Eötvös Loránd University Central China Normal University Heidelberg University Kurchatov Institute Institute for High Energy Physics Pennsylvania State University Lawrence Berkeley National Laboratory Abilene Christian University Purdue University West Lafayette Wayne State University University of Illinois Chicago Lehigh University Southern Connecticut State University Technische Universität Darmstadt Valparaiso University Indian Institute of Science Education and Research, Tirupati American University in Cairo Indiana University Bloomington The University of Texas at Austin Warsaw University of Technology Frankfurt Institute for Advanced Studies Argonne National Laboratory Chinese Academy of Sciences Shanghai Institute of Applied Physics Rutgers, The State University of New Jersey Institute of Physics, Bhubaneshwar Pusan National University Institute of Nuclear Physics, Polish Academy of Sciences Temple University Max Planck Institute for Physics Universidade de São Paulo Huzhou Normal University Michigan State University United States Naval Academy

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions

Lire en accès ouvert Consulter la publication primaire Ouvrir le DOI