Experimental study of fragmentation products in the reactions<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mn>112</mml:mn></mml:msup><mml:mtext>Sn</mml:mtext><mml:mo>+</mml:mo><mml:msup><mml:mrow /><mml:mn>112</mml:mn></mml:msup><mml:mtext>Sn</mml:mtext></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mn>124</mml:mn></mml:msup><mml:mtext>Sn</mml:mtext><mml:

Föhr, V.; Bacquias, A.; Casarejos, E.; Enqvist, T.; Junghans, A. R.; Kelić-Heil, A.; Kurtukian, T.; Lukić, S.; Pérez–Loureiro, D.; Pleskač, R.; Ricciardi, M. V.; Schmidt, K.‐H.; Taïeb, J.

doi:10.1103/physrevc.84.054605

Cited by 20 publications

(23 citation statements)

References 49 publications

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“…Recently, experiments for two symmetric systems 124 Sn + 124 Sn and 112 Sn + 112 Sn, both at an incident energy of 1 GeV/nucleon, were performed by the fragment separator (FRS) collaboration at the GSI laboratory [7]. The high-resolution magnetic fragment separator was used for the separation and identification of the reaction products.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical study of projectile fragmentation in theSn112+Sn112and<

et al. 2015

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We analyze the production cross sections and isotopic distributions of projectilelike residues in the reactions 112 Sn + 112 Sn and 124 Sn + 124 Sn at an incident beam energy of 1 GeV/nucleon measured with the fragment separator at the GSI laboratory. Calculations within the statistical multifragmentation model for an ensemble of excited sources were performed with ensemble parameters determined previously for similar reactions at 600 MeV/nucleon. The obtained good agreement with the experiment establishes the universal properties of the excited spectator systems produced during the dynamical stage of the reaction. It is furthermore confirmed that a significant reduction of the symmetry-energy term at the freeze-out stage of reduced density and high temperature is necessary to reproduce the experimental isotope distributions. A trend of decreasing symmetry energy for large neutron-rich fragments of low excitation energy is interpreted as a nuclear-structure effect.

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Section: Introductionmentioning

confidence: 99%

“…The measured isotopic cross sections of identified fragments from these two reactions are reported in tabulated form in Ref. [7].…”

Section: Introductionmentioning

confidence: 99%

Theoretical study of projectile fragmentation in theSn112+Sn112and<

et al. 2015

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“…[2]. For the quantitative comparison of the present results with experimental data, the SMM ensemble calculations were globally normalized with respect to the measured Z cross sections in the interval 20 ≤ Z ≤ 25 for which the agreement is best.…”

Section: Charge and Isotopic Distributionmentioning

confidence: 99%

“…The isotopic cross sections of the measured fragments for these two reactions were tabulated in Ref. [2]. Previously, we have already analyzed similar reactions: In particular, the ALADIN data were successfully interpreted [3].…”

Section: Introductionmentioning

confidence: 99%

“…Recently the experiments for two symmetric systems 124 Sn + 124 Sn and 112 Sn + 112 Sn were performed at GSI by FRS collaboration, both at an incident beam energy of 1 A GeV. The high-resolution magnetic FRagment Separator (FRS) spectrometer was used for separation and extraction of the reaction products [2]. The initial neutron to proton ratios (N/Z) of the symmetric systems are 1.24 for 112 Sn and, 1.48 for 124 Sn.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical Study of Projectile Fragmentations in Relativistic Heavy-Ion Reactions

Ogul

Imal

Ergun

et al. 2015

EPJ Web of Conferences

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Abstract.We have investigated and interpreted the production cross sections and isotopic distributions of projectile-like residues in the reactions 124 Sn + 124 Sn and 112 Sn + 112 Sn at an incident beam energy of 1 GeV/nucleon measured with the FRS fragment separator at the GSI laboratory. For the interpretation of the data, calculations within the statistical multifragmentation model (SMM) for an ensemble of excited sources were performed with ensemble parameters. The possible modification of symmetry energy parameter, in the multifragmentation region at the low density and hot freeze-out environment, is studied. It is reconfirmed that a significant reduction of the symmetry energy term is found necessary to reproduce experimental results at these conditions. We have also found a decreasing trend of the symmetry energy for large neutron-rich fragments of low excitation energy which is interpreted as a nuclear-structure effect.

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