THE SYMMETRY ENERGY IN NUCLEAR REACTIONS

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • W Trautmann
  • S Bianchin
  • AS Botvina
  • A Le Fevre
  • Y Leifels
  • C Sfienti
  • N Buyukcizmeci
  • R Ogul
  • IN Mishustin
  • M Chartier
  • PZ Wu
  • RC Lemmon
  • Q Li
  • J Lukasik
  • P Pawlowski
  • A Pagano
  • P Russotto
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000282021700018&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1142/S0218301310016077
eISSN
1793-6608
Externe Identifier
  • Clarivate Analytics Document Solution ID: 652PQ
ISSN
0218-3013
Ausgabe der Veröffentlichung
8-9
Zeitschrift
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
Paginierung
1653 - 1663
Datum der Veröffentlichung
2010
Status
Published
Titel
THE SYMMETRY ENERGY IN NUCLEAR REACTIONS
Sub types
  • Article
  • Proceedings Paper
Ausgabe der Zeitschrift
19

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:p> New results for the strength of the symmetry energy are presented which illustrate the complementary aspects encountered in reactions probing nuclear densities below and above saturation. A systematic study of isotopic effects in spectator fragmentation was performed at the ALADIN spectrometer with <jats:sup>124</jats:sup> Sn primary and <jats:sup>107</jats:sup> Sn and <jats:sup>124</jats:sup> La secondary beams of 600 MeV/nucleon incident energy. The analysis within the Statistical Fragmentation Model shows that the symmetry-term coefficient entering the liquid-drop description of the emerging fragments decreases significantly as the multiplicity of fragments and light particles from the disintegration of the produced spectator systems increases. Higher densities were probed in the FOPI/LAND study of nucleon and light-particle flows in central and mid-peripheral collisions of <jats:sup>197</jats:sup> Au +<jats:sup>197</jats:sup> Au nuclei at 400 MeV/nucleon incident energy. From the comparison of the measured neutron and hydrogen squeeze-out ratios with predictions of the UrQMD model a moderately soft symmetry term with a density dependence of the potential term proportional to (ρ/ρ0)<jats:sup>γ</jats:sup> with γ = 0.9 ± 0.3 is favored. </jats:p>
Autoren
  • W TRAUTMANN
  • S BIANCHIN
  • AS BOTVINA
  • A LE FÈVRE
  • Y LEIFELS
  • C SFIENTI
  • N BUYUKCIZMECI
  • R OGUL
  • IN MISHUSTIN
  • M CHARTIER
  • PZ WU
  • RC LEMMON
  • Q LI
  • J ŁUKASIK
  • P PAWŁOWSKI
  • A PAGANO
  • P RUSSOTTO
  • THE ALADIN COLLABORATION
DOI
10.1142/s0218301310016077
eISSN
1793-6608
ISSN
0218-3013
Ausgabe der Veröffentlichung
08n09
Zeitschrift
International Journal of Modern Physics E
Sprache
en
Online publication date
2012
Paginierung
1653 - 1663
Datum der Veröffentlichung
2010
Status
Published
Herausgeber
World Scientific Pub Co Pte Lt
Herausgeber URL
http://dx.doi.org/10.1142/s0218301310016077
Datum der Datenerfassung
2019
Titel
THE SYMMETRY ENERGY IN NUCLEAR REACTIONS
Ausgabe der Zeitschrift
19

Datenquelle: Crossref

Abstract
New results for the strength of the symmetry energy are presented which illustrate the complementary aspects encountered in reactions probing nuclear densities below and above saturation. A systematic study of isotopic effects in spectator fragmentation was performed at the ALADIN spectrometer with 124Sn primary and 107Sn and 124La secondary beams of 600 MeV/nucleon incident energy. The analysis within the Statistical Fragmentation Model shows that the symmetry-term coefficient entering the liquid-drop description of the emerging fragments decreases significantly as the multiplicity of fragments and light particles from the disintegration of the produced spectator systems increases. Higher densities were probed in the FOPI/LAND study of nucleon and light-particle flows in central and mid-peripheral collisions of 197Au+197Au nuclei at 400 MeV/nucleon incident energy. From the comparison of the measured neutron and hydrogen squeeze-out ratios with predictions of the UrQMD model a moderately soft symmetry term with a density dependence of the potential term proportional to (rho/rho_0)^{gamma} with gamma = 0.9 +- 0.3 is favored.
Autoren
  • W Trautmann
  • S Bianchin
  • AS Botvina
  • A Le Fevre
  • Y Leifels
  • C Sfienti
  • N Buyukcizmeci
  • R Ogul
  • IN Mishustin
  • M Chartier
  • PZ Wu
  • RC Lemmon
  • Q Li
  • J Lukasik
  • P Pawlowski
  • A Pagano
  • P Russotto
Autoren-URL
http://arxiv.org/abs/1001.3867v1
Zeitschrift
Int. J. Mod. Phys. E
Schlüsselwörter
  • nucl-ex
  • nucl-ex
Notes
11 pages, 7 figures, Proceedings of IWND09, August 22 - 25, 2009, Shanghai (China)
Paginierung
1653
Datum der Veröffentlichung
2010
Herausgeber URL
http://dx.doi.org/10.1142/S0218301310016077
Datum der Datenerfassung
2010
Datum, an dem der Datensatz öffentlich gemacht wurde
2010
Titel
The symmetry energy in nuclear reactions
Ausgabe der Zeitschrift
19

Files

1001.3867v1.pdf

Datenquelle: arXiv

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