Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density

Collapse authors list.
Russotto, P, Gannon, S, Kupny, S, Lasko, P, Acosta, L, Adamczyk, M, Al-Ajlan, A, Al-Garawi, M, Al-Homaidhi, S, Amorini, F et al (show 82 more authors) , Auditore, L, Aumann, T, Ayyad, Y, Basrak, Z, Benlliure, J, Boisjoli, M, Boretzky, K, Brzychczyk, J, Budzanowski, A, Caesar, C, Cardella, G, Cammarata, P, Chajecki, Z, Chartier, M ORCID: 0000-0003-0578-5567, Chbihi, A, Colonna, M, Cozma, MD, Czech, B, De Filippo, E, Di Toro, M, Famiano, M, Gasparic, I, Grassi, L, Guazzoni, C, Guazzoni, P, Heil, M, Heilborn, L, Introzzi, R, Isobe, T, Kezzar, K, Kis, M, Krasznahorkay, A, Kurz, N, La Guidara, E, Lanzalone, G, Le Fevre, A, Leifels, Y, Lemmon, RC, Li, QF, Lombardo, I, Lukasik, J, Lynch, WG, Marini, P, Matthews, Z, May, L, Minniti, T, Mostazo, M, Pagano, A, Pagano, EV, Papa, M, Pawlowski, P, Pirrone, S, Politi, G, Porto, F, Reviol, W, Riccio, F, Rizzo, F, Rosato, E, Rossi, D, Santoro, S, Sarantites, DG, Simon, H, Skwirczynska, I, Sosin, Z, Stuhl, L, Trautmann, W, Trifiro, A, Trimarchi, M, Tsang, MB, Verde, G, Veselsky, M, Vigilante, M, Wang, Yongjia, Wieloch, A, Wigg, P, Winkelbauer, J, Wolter, HH, Wu, P, Yennello, S, Zambon, P, Zetta, L and Zoric, M (2016) Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density PHYSICAL REVIEW C, 94 (3). 034608-. ISSN 0556-2813, 1089-490X

Text russotto_accepted.pdf - Author Accepted Manuscript Download (2MB)

Abstract

Directed and elliptic flows of neutrons and light-charged particles were measured for the reaction Au197+Au197 at 400 MeV/nucleon incident energy within the ASY-EOS experimental campaign at the GSI laboratory. The detection system consisted of the Large Area Neutron Detector (LAND), combined with parts of the CHIMERA multidetector, the ALADIN Time-of-flight Wall, and the Washington University Microball detector. The latter three arrays were used for the event characterization and reaction-plane reconstruction. In addition, an array of triple telescopes, KRATTA was used for complementary measurements of the isotopic composition and flows of light-charged particles. From the comparison of the elliptic-flow ratio of neutrons with respect to charged particles with UrQMD predictions, a value γ=0.72±0.19 is obtained for the power-law coefficient describing the density dependence of the potential part in the parametrization of the symmetry energy. It represents a new and more stringent constraint for the regime of suprasaturation density and confirms, with a considerably smaller uncertainty, the moderately soft to linear density dependence deduced from the earlier FOPI-LAND data. The densities probed are shown to reach beyond twice saturation.

Item Type:	Article
Uncontrolled Keywords:	5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	08 Nov 2016 15:04
Last Modified:	24 Jun 2026 14:08
DOI:	10.1103/PhysRevC.94.034608
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3004432
Disclaimer:	The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate.