Constraining the symmetry term in the nuclear equation of state at subsaturation densities and finite temperatures

Marini, P.; Bonasera, A.; McIntosh, A. B.; Tripathi, R.; Galanopoulos, S.; Hagel, K.; Heilborn, L.; Kohley, Z.; May, L. W.; Mehlman, M.; Soisson, S. N.; Souliotis, G. A.; Shetty, D. V.; Smith, W. B.; Stein, B. C.; Wuenschel, S.; Yennello, S. J.

doi:10.1103/physrevc.85.034617

Cited by 42 publications

(64 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other definitions of the quantity ∆ have been recently suggested [17,19,20], which take into account the fragment isotopic composition rather than the source composition. However, the debate on the proper choice of ∆ is still open.…”

mentioning

confidence: 99%

Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

et al. 2013

Self Cite

View full text Add to dashboard Cite

A systematic study on the effect of secondary decay on the symmetry energy coefficient extracted by isoscaling and the recently proposed isobaric yield ratio methods within the Statistical Multifragmentation Model is performed. The correlations between the input symmetry energy coefficients and the calculated ones from both primary and secondary fragment yields are analysed. Results for secondary fragments show that the best estimation of the input symmetry energy coefficient within SMM is obtained by the isoscaling method, using the yields of light fragments. A comparison to experimental results is also presented.

show abstract

mentioning

confidence: 99%

Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, fragment isospin fluctuations and isoscaling parameters are related to the symmetry energy at the fragment formation density. These results are relevant to experimental isoscaling analyses aiming at extracting information on the symmetry energy, a current topic of strong interest in nuclear physics and astrophysics [12,17,[33][34][35][36][37]. Though secondary decay effects are expected to reduce the sensitivity of these observables to the specific shape of the symmetry energy [37], this analysis should still allow one to probe the range of values spanned within the low-density conditions reached in nuclear fragmentation reactions.…”

mentioning

confidence: 86%

Fluctuations and Symmetry Energy in Nuclear Fragmentation Dynamics

Colonna

2013

Phys. Rev. Lett.

View full text Add to dashboard Cite

Within a dynamical description of nuclear fragmentation, based on the liquid-gas phase transition scenario, we explore the relation between neutron-proton density fluctuations and nuclear symmetry energy. We show that, along the fragmentation path, isovector fluctuations follow the evolution of the local density and approach an equilibrium value connected to the local symmetry energy. Higher-density regions are characterized by smaller average asymmetry and narrower isotopic distributions. This dynamical analysis points out that fragment final state isospin fluctuations can probe the symmetry energy of the density domains from which fragments originate.

show abstract

“…A m ong these probes, the isobaric yield ratio difference (IB D ) probe is know n to be sensitive to nuclear density [2][3][4][5]. The isobaric yield ratio (IY R) provides cancelations o f special energy term s in the free energy of fragm ents, w hich have been used to study the sym m etry energy o f fragm ents [6][7][8][9][10]. Sim ilar to the isoscaling m ethod [11][12][13][14], the IBD probe is constructed from the IY R s for two reactions o f sim ilar m easurem ents.…”

Section: Introductionmentioning

confidence: 99%

Target effects in isobaric yield ratio differences between projectile fragmentation reactions

Zhang

Qiao

et al. 2015

Phys. Rev. C

View full text Add to dashboard Cite

Background: The isobaric yield ratio difference (IBD) between reactions is know to be sensitive to the density difference between projectiles in heavy-ion collisions around the Fermi energy. Purpose: The target effects in the isobaric yield ratio (IYR) and the IBD results have been studied. Methods: The amount of isotopes in the 140/1 MeV 48,40Ca + I8lTa/9Be and 58 64Ni + l8lTa/9Be reactions have been previously measured with high accuracy. The IYR and IBD results have been obtained from these reactions to study the effects of the light 9Be and heavy 181 Ta targets. A ratio (rA(J between the IBD results for the reactions with Ta and Be targets is defined to quantitatively show the target dependence of the IBD results. Results The IYRs for reactions with symmetric projectiles are more easily affected than those for reactions with neutron-rich projectiles. The IBD results are suppressed by using the l8lTa target to different degrees. Conclusions: The IYR and IBD results are influenced by the target used. The IBD for the / = 1 isobaric chain is suggested as a probe to study the difference between the neutron and proton densities of the reaction systems.

show abstract

Constraining the symmetry term in the nuclear equation of state at subsaturation densities and finite temperatures

Cited by 42 publications

References 55 publications

Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

Fluctuations and Symmetry Energy in Nuclear Fragmentation Dynamics

Target effects in isobaric yield ratio differences between projectile fragmentation reactions

Contact Info

Product

Resources

About