Mass dependence of disappearance of transverse in-plane flow

Sood, Aman D.; Puri, Rajeev K.

doi:10.1103/physrevc.69.054612

Cited by 73 publications

(105 citation statements)

References 50 publications

(218 reference statements)

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“…As reported in Ref., [10,11,13,22,28] the energy of vanishing flow exhibits (A −τ ) power law mass dependence. Naturally, the lighter colliding nuclei have higher balance energy whereas heavier colliding nuclei have smaller balance energy.…”

Section: Resultssupporting

confidence: 67%

“…It gives a possibility to extract the nuclear matter equation of state and strength of in-medium nucleon-nucleon cross section. [8-11, 13, 14, 22] Recently, we presented, for the first time, a complete study of the energy of vanishing flow over the entire periodic table [28]. There, a mass power law was obtained and a very close agreement with the experimental observations was also found [28].…”

Section: Introductionmentioning

confidence: 74%

“…Therefore, here, we simulated the reactions of 12 flow. The extraction and discussion has been reported elsewhere [28]. Once the energy of vanishing flow is known, the participant-spectator matter is extracted with two different procedures as explained in Ref [29].…”

Section: Resultsmentioning

confidence: 99%

“…[8-11, 13, 14, 22] Recently, we presented, for the first time, a complete study of the energy of vanishing flow over the entire periodic table [28]. There, a mass power law was obtained and a very close agreement with the experimental observations was also found [28]. In another communication, we also studied the other phenomena of heavy-ion reactions at the energy of vanishing flow.…”

Section: Introductionmentioning

confidence: 82%

“…We shall use both the soft and hard equations of state. As explained in Ref [28]. and others, [14,23,24,27] an isotropic and constant nucleon-nucleon cross section between 40 and 55 mb is also employed.…”

Section: The Modelmentioning

confidence: 99%

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Participant-spectator matter at the energy of vanishing flow

Sood

Puri

2009

Phys. Rev. C

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We aim to study the participant-spectator matter over a wide range of energies of vanishing flow and masses. For this, we employed different model parameters at central and semi-central colliding geometries. Remarkably, a nearly mass independent nature of the participant matter was obtained at the energy of vanishing flow. This makes it a very strong alternative candidate to study the energy of vanishing flow. We also show that the participant matter can also act as an indicator to study the degree of thermalization. The degree of thermalization reached in central collisions is nearly the same for different colliding nuclei at the energy of vanishing flow.

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Section: Resultssupporting

confidence: 67%

Section: Introductionmentioning

confidence: 74%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 82%

Section: The Modelmentioning

confidence: 99%

See 3 more Smart Citations

Participant-spectator matter at the energy of vanishing flow

Sood

Puri

2009

Phys. Rev. C

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Influence of the symmetry energy on the balance energy of the directed flow

Guo

Wang

Qing-feng

et al. 2012

Sci. China Phys. Mech. Astron.

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The influence of the density-dependent symmetry energy on the balance energy (E bal ) of directed flow from heavy ion collisions (HICs) at incident energies covered by INDRA and MSU experiments is studied, using the updated version of the ultrarelativistic quantum molecular dynamics (UrQMD) model, especially adapted to low-energy heavy ion collisions (HICs). Four mass-symmetric reactions with total mass numbers between 192 and 394 are chosen for investigating the influence of the symmetry energy on the system-mass dependence of E bal . The results show that the uncertainty in the density dependence of the symmetry potential causes changes of E bal of the order of several MeV, depending on the type of particle considered. The E bal of neutrons from HICs is particularly sensitive to the density dependence of the symmetry potential energy, while the system-mass dependence of E bal of Z = 1 particles is not. symmetry energy, directed flow, balance energy PACS number(s): 21.65.Ef, 25.70.-z, 25.75.Ld Citation:A key objective in the study of heavy ion collisions (HICs), whether using stable or unstable beams, is to collect information about the nuclear equation of state (EoS). For stable nuclei with large mass numbers, the iso-vector part of the EoS is of importance due to the fact of their neutron number N being considerably larger than their proton number Z. Even for initially isospin-symmetric systems, the isospin effect should be taken into account since isospin diffusion and distillation may occur during the non-equilibrium stages of HICs. Essentially the whole collision is an isospin non-equilibrium process [1,2]. It is also well known and quite obvious that the isospin asymmetric EoS, besides in nuclear physics, is very important for understanding many phenomena in astrophysics as, e.g., the physics of neutron stars. At present, the *Corresponding author (email: liqf@hutc.zj.cn) largest uncertainty in the EoS is believed to come mainly from the density-dependent iso-vector part, the symmetry energy. For the isoscalar part, a soft EoS with incompressibility K around 230 MeV has been extracted through comparisons with data [3,4]. Significant progress in constraining the symmetry energy has been made during the past few years. For recent reviews we refer the reader to refs. [5,6]. Despite these achievements, the density dependence of the symmetry energy, especially at supranormal densities, is still not well determined due to strong model dependences [7][8][9][10].To reduce the model influence and to provide additional constraints, more isospin-related observables will have to be put forward, with the aim of arriving at a more authentic final form of the density-dependent symmetry energy. Besides the sensitive observables being studied up to now by several theoretical groups in this field (Please see the review article [5]

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The effect of symmetry potential on the balance energy of light particles emitted from mass symmetric heavy-ion collisions with isotopes, isobars and isotones

Wang

Guo

et al. 2012

Sci. China Phys. Mech. Astron.

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Mass dependence of disappearance of transverse in-plane flow

Cited by 73 publications

References 50 publications

Participant-spectator matter at the energy of vanishing flow

Participant-spectator matter at the energy of vanishing flow

Influence of the symmetry energy on the balance energy of the directed flow

The effect of symmetry potential on the balance energy of light particles emitted from mass symmetric heavy-ion collisions with isotopes, isobars and isotones

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