The Indiana silicon sphere 4π charged-particle detector array

Kwiatkowski, K.; Bracken, D. S.; Morley, K.B.; Brzychczyk, J.; Foxford, E. Renshaw; Komisarcik, K.; Viola, V. E.; Yoder, N. R.; Dorsett, J.; Poehlman, J.; Madden, N; Ottarson, J.

doi:10.1016/0168-9002(95)00011-9

Cited by 68 publications

(14 citation statements)

References 17 publications

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“…Rings 2-9, ranging from 3.6 • to 45.0 • , had the same geometry as the INDRA detector [39] and rings 10-15 were of the ISiS geometry [40]. Rings 2-9 each consisted of ten single telescope modules and two super telescope modules.…”

Section: Methodsmentioning

confidence: 99%

Correlations with projectile-like fragments and emission order of light charged particles

et al. 2012

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Correlations of midrapidity light charged particles (LCPs) and intermediate mass fragments (IMFs) with projectile-like fragments (PLFs) have been examined from the 35 MeV/u 70 Zn + 70 Zn, 64 Zn + 64 Zn, and 64 Ni + 64 Ni reaction systems. A new method was developed to examine the flow of the particles with respect to the PLF. The invariant PLF-scaled flow allowed for the dynamics of the midrapidity Z = 1-4 particles to be studied. Strong differences in the PLF-scaled flow were observed between the different isotopes. In particular, the most n-rich LCPs exhibited a negative PLF-scaled flow in comparison to the other LCPs. A classical molecular dynamics model and a three-body Coulomb trajectory simulation were both used to show that the PLF-scaled flow observable could be connected to the average order of emission of the LCPs. The experimental results suggest that the midrapidity region is preferentially populated with neutron-rich LCPs and Z = 3-4 IMFs at a relatively early stage in the collision. The deuteron and 3 He particles are emitted later followed, lastly, by protons and alphas. The average order of emission of the midrapidity LCPs was extracted from the constrained molecular dynamics simulations and showed good agreement with the emission order suggested by the experimental PLF-scaled flow results.

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Section: Methodsmentioning

confidence: 99%

Correlations with projectile-like fragments and emission order of light charged particles

et al. 2012

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“…• , have the same geometry as the INDRA detector [53] and rings 10-15 are of the ISiS geometry [54]. Rings 2-9 each consist of 10 single telescope modules and 2 super telescope modules.…”

Section: Experimental and Theoretical Detailsmentioning

confidence: 99%

Transverse collective flow and midrapidity emission of isotopically identified light charged particles

et al. 2011

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The transverse flow and relative mid-rapidity yield of isotopically identified light charged particles (LCPs) Ni systems. A large enhancement of the mid-rapidity yield of the LCPs was observed relative to the yield near the projectile rapidity. In particular, this enhancement was increased for the more neutron-rich LCPs demonstrating a preference for the production of neutron-rich fragments in the mid-rapidity region. Additionally, the transverse flow of the LCPs was extracted which provides insight into the average movement of the particles in the mid-rapidity region. Isotopic and isobaric effects were observed in the transverse flow of the fragments. In both cases, the transverse flow was shown to decrease with an increasing neutron content in the fragments. A clear inverse relationship between the transverse flow and relative mid-rapidity yield is shown. The increased relative mid-rapidity emission produces a decreased transverse flow. The Stochastic Mean-Field model was used for comparison to the experimental data. The results showed that the model was able to reproduce the general isotopic and isobaric trends for the mid-rapidity emission and transverse flow. The sensitivity of these observables to the density dependence of the symmetry energy was explored. The results indicate that the transverse flow and mid-rapidity emission of the LCPs are sensitive to the denisty dependence of the symmetry energy.

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“…NIMROD-ISiS consisted of 14 concentric rings providing coverage from 3.6 • to 167 • in lab. The first 8 rings, ranging from 3.6 • to 45.0 • , had the same geometry as the INDRA detector [22] and the final 6 rings were of the ISiS geometry [23]. Isotopic resolution was achieved, in the forward angles, for Z=1-17 particles and elemental identification was obtained up through the charge of the beam.…”

Section: Methodsmentioning

confidence: 99%

Intermediate Mass Fragment Flow as a Probe to the Nuclear Equation of State

Kohley

May

Wuenschel

et al. 2011

J. Phys.: Conf. Ser.

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A transition from the IMF transverse flow strongly depending on the mass of the system, in the most violent collisions, to a dependence on the charge of the system, for the peripheral reactions, is shown. This transition was shown to be sensitive to the density dependence of the symmetry energy using the antisymmetrized molecular dynamics model. The results present a new observable, the IMF transverse flow, that can be used to probe the nuclear Equation of State. Comparison with the simulation demonstrated a preference for a stiff density dependence of the symmetry energy. IntroductionHeavy-ion collisions provide a unique opportunity to examine nuclear matter at temperatures, densities, and neutron-to-proton (N/Z) ratios away from that of ground state nuclei. A widerange of observables from heavy-ion collisions have been used to study and constrain the nuclear Equation of State (EoS) [1,2]. While the EoS for symmetric nuclear matter (N=Z) is relatively well constrained [3][4][5], predictions for the density dependence of the symmetry energy, E sym (ρ), can still vary widely [2,5]. Free neutron-proton ratios [6], isobar ratios [7], isoscaling [8], and isospin diffusion [9] measurements from heavy-ion collisions have provided evidence suggesting a stiff density dependence of the symmetry energy [10]. The collective transverse flow of light charged particles (LCPs) has been predicted to be a useful probe for applying constraints on the asymmetric part of the EoS at both high and low densities [2,11].The transverse collective flow has been shown to depend on both the mass and N/Z of the colliding system. The examination of the balance energy demonstrated that the transverse flow was strongly dependent on the mass, A sys , of the colliding system [12]. The balance

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The Indiana silicon sphere 4π charged-particle detector array

Cited by 68 publications

References 17 publications

Correlations with projectile-like fragments and emission order of light charged particles

Correlations with projectile-like fragments and emission order of light charged particles

Transverse collective flow and midrapidity emission of isotopically identified light charged particles

Intermediate Mass Fragment Flow as a Probe to the Nuclear Equation of State

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