The symmetry energy at suprasaturation density and the ASY-EOS experiment at GSI

E. De Filippo; P. Russotto; L. Acosta; M. Adamczyk; A. Al-Ajlan; M. Al-Garawi; S. Al-Homaidhi; F. Amorini; L. Auditore; T. Aumann; Y. Ayyad; Z. Basrak; J. Benlliure; M. Boisjoli; K. Boretzky; J. Brzychczyk; A. Budzanowski; C. Caesar; G. Cardella; P. Cammarata; Z. Chajecki; M. Chartier; A. Chbihi; M. Colonna; M.D. Cozma; B. Czech; M. Di Toro; M. Famiano; S. Gannon; I. Gašparić; L. Grassi; C. Guazzoni; P. Guazzoni; M. Heil; L. Heilborn; R. Introzzi; T. Isobe; K. Kezzar; M. Kiš; A. Krasznahorkay; S. Kupny; N. Kurz; E. La Guidara; G. Lanzalone; P. Lasko; A. Le Fèvre; Y. Leifels; R.C. Lemmon; Q.F. Li; I. Lombardo; J. Łukasik; W.G. Lynch; P. Marini; Z. Matthews; L. May; T. Minniti; M. Mostazo; A. Pagano; E.V. Pagano; M. Papa; P. Pawłowski; S. Pirrone; G. Politi; F. Porto; W. Reviol; F. Riccio; F. Rizzo; E. Rosato; D. Rossi; S. Santoro; D.G. Sarantites; H. Simon; I. Skwirczynska; Z. Sosin; L. Stuhl; W. Trautmann; A. Trifirò; M. Trimarchi; M.B. Tsang; G. Verde; M. Veselsky; M. Vigilante; Yongjia Wang; A. Wieloch; P. Wigg; J. Winkelbauer; H.H. Wolter; P. Wu; S. Yennello; P. Zambon; L. Zetta; M. Zoric

doi:10.1051/epjconf/201713709002

All issues

Volume 137 (2017)

EPJ Web Conf., 137 (2017) 09002

Abstract

Open Access

Issue		EPJ Web Conf. Volume 137, 2017 XII^th Quark Confinement and the Hadron Spectrum


Article Number		09002
Number of page(s)		7
Section		Section F: Nuclear and Astroparticle Physics
DOI		https://doi.org/10.1051/epjconf/201713709002
Published online		22 March 2017

EPJ Web of Conferences 137, 09002 (2017)
https://doi.org/10.1051/epjconf/201713709002

The symmetry energy at suprasaturation density and the ASY-EOS experiment at GSI

E. De Filippo¹^a, P. Russotto¹, L. Acosta²^,3, M. Adamczyk⁴, A. Al-Ajlan⁵, M. Al-Garawi⁶, S. Al-Homaidhi⁵, F. Amorini², L. Auditore⁷^,8, T. Aumann⁹^,10, Y. Ayyad¹¹, Z. Basrak¹², J. Benlliure¹¹, M. Boisjoli¹³, K. Boretzky¹⁰, J. Brzychczyk⁴, A. Budzanowski¹⁴, C. Caesar⁹, G. Cardella¹, P. Cammarata¹⁵, Z. Chajecki¹⁶^,17, M. Chartier¹⁸, A. Chbihi¹⁰, M. Colonna², M.D. Cozma¹⁹, B. Czech¹⁴, M. Di Toro²^,20, M. Famiano²¹, S. Gannon¹⁸, I. Gašparić⁹^,12, L. Grassi¹², C. Guazzoni²²^,23, P. Guazzoni²²^,24, M. Heil¹⁰, L. Heilborn¹⁵, R. Introzzi²⁵, T. Isobe²⁶, K. Kezzar⁶, M. Kiš¹⁰, A. Krasznahorkay²⁷, S. Kupny⁴, N. Kurz¹⁰, E. La Guidara¹, G. Lanzalone²^,28, P. Lasko⁴, A. Le Fèvre¹⁰, Y. Leifels¹⁰, R.C. Lemmon²⁹, Q.F. Li³⁰, I. Lombardo³¹^,32, J. Łukasik¹⁴, W.G. Lynch¹⁶, P. Marini¹³^,15, Z. Matthews¹⁸, L. May¹⁵, T. Minniti¹, M. Mostazo¹¹, A. Pagano¹, E.V. Pagano²^,20, M. Papa¹, P. Pawłowski¹⁴, S. Pirrone¹, G. Politi¹^,20, F. Porto²^,20, W. Reviol³³, F. Riccio²²^,23, F. Rizzo²^,20, E. Rosato³¹^,32, D. Rossi⁹^,10, S. Santoro⁷^,8, D.G. Sarantites³³, H. Simon¹⁰, I. Skwirczynska¹⁴, Z. Sosin⁴, L. Stuhl²⁷, W. Trautmann¹⁰, A. Trifirò⁷^,8, M. Trimarchi⁷^,8, M.B. Tsang¹⁶, G. Verde¹^,34, M. Veselsky³⁵, M. Vigilante³¹^,32, Yongjia Wang³⁰, A. Wieloch⁴, P. Wigg¹⁸, J. Winkelbauer¹⁶, H.H. Wolter³⁶, P. Wu¹⁸, S. Yennello¹⁵, P. Zambon²²^,23, L. Zetta²²^,24 and M. Zoric¹²

¹ INFN-Sezione di Catania, Catania, Italy
² INFN-Laboratori Nazionali del Sud, Catania, Italy
³ Universidad Nacional Autònoma de Mèxico, Mexico
⁴ Marian Smoluchowski Institute of Physics, Jagiellonian University, Kraków, Poland
⁵ KACST Riyadh, Riyadh, Saudi Arabia
⁶ King Saud University, Riyadh, Saudi Arabia
⁷ INFN-Gruppo Collegato di Messina, Messina, Italy
⁸ Dip. MIFT Università di Messina, Messina, Italy
⁹ Technische Universität, Darmstadt, Germany
¹⁰ GSI Helmholtzzentrum, Darmstadt, Germany
¹¹ University of Santiago de Compostela, Santiago de Compostela, Spain
¹² Ruder Bošković Institute, Zagreb, Croatia
¹³ GANIL, CEA and IN2P3-CNRS, Caen, France
¹⁴ H. Niewodniczański Institute of Nuclear Physics, Kraków, Poland
¹⁵ Texas A&M University, College Station, USA
¹⁶ NSCL Michigan State University, East Lansing, USA
¹⁷ Western Michigan University, Kalamazoo, USA
¹⁸ University of Liverpool, Physics Department, Liverpool, United Kingdom
¹⁹ IFIN-HH, Mǎgurele-Bucharest, Romania
²⁰ Dip. Fisica e Astronomia, Università di Catania, Catania, Italy
²¹ Western Michigan University, Kalamazoo, USA
²² INFN-Sezione di Milano, Milano, Italy
²³ Politecnico di Milano, Milano, Italy
²⁴ Dip. di Fisica, Università degli Studi di Milano, Milano, Italy
²⁵ INFN, Politecnico di Torino, Torino, Italy
²⁶ RIKEN, Wako, Saitama, Japan
²⁷ Institute of Nuclear Research (MTA-Atomki), Debrecen, Hungary
²⁸ Università “Kore”, Enna, Italy
²⁹ STFC Daresbury Laboratory, Warrington, United Kingdom
³⁰ Huzhou University, Huzhou, China
³¹ INFN-Sezione di Napoli, Napoli, Italy
³² Dip. di Fisica, Università di Napoli, Napoli, Italy
³³ Chemistry Department, Washington University, St. Louis, USA
³⁴ Institut de Physique Nucléaire, IN2P3-CNRS et Université Paris-Sud, Orsay, France
³⁵ Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia
³⁶ Facultät für Physik, Universität München, Garching, Germany

^a e-mail: defilippo@ct.infn.it

Published online: 22 March 2017

Abstract

The ASY-EOS experiment at GSI laboratory measured the direct and elliptic flow of neutrons and light charged particles in the reaction ¹⁹⁷Au+¹⁹⁷ Au at 400 A MeV incident energy. The ratio of elliptic flow of neutrons with respect to that of the light charged particles was used as main experimental observable to probe the density dependence of the symmetry energy term of the nuclear equation of state. Results, obtained by comparison of the experimental data with the UrQMD model predictions, strongly support a moderately soft to linear density dependence of the symmetry energy at suprasaturation densities below 2ρ₀.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.