Calculation of kaon production in heavy ion collisions within the cascade model

Barz, H.W.; Iwe, H.

doi:10.1016/0370-2693(84)90803-7

Cited by 14 publications

(3 citation statements)

References 17 publications

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“…According to the simulation results [10,39,40,41,42], it is widely believed that kaons are mostly produced through the ∆N → NY K and ∆∆ → NY K reactions in heavy ion collisions. However, in most of the theoretical studies with the Boltzmann/Vlasov-Uehling-Uhlenbeck approach (BUU/VUU) [1,53,54,55,56,57], or quantum molecular dynamics (QMD) [58,59], the parametrizations used for these total cross sections have been made in a simple phenomenological manner in free space [8,26,27]. In addition, the parametrizations for all isospin channels are obtained by fitting to the existing limited isospin channels of the data.…”

Section: ∆N → N Y Kmentioning

confidence: 99%

Resonance model study of kaon production in baryon-baryon reactions for heavy-ion collisions

et al. 1999

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The energy dependence of the total kaon production cross sections in baryon baryon (N and ∆) collisions are studied in the resonance model, which is a relativistic, tree-level treatment. This study is the first attempt to complete a systematic, consistent investigation of the elementary kaon production reactions for both the pion baryon and baryon baryon reactions. Our model suggests that the magnitudes of the isospin-averaged total cross sections for the N N → N Y K and ∆N → N Y K (Y = Λ or Σ) reactions are almost equal at energies up to about 200 MeV above threshold. However, the magnitudes for the ∆N reactions become about 6 times larger than those for the N N reactions at energies about 1 GeV above threshold. Furthermore, the magnitudes of the isospin-averaged total cross sections for the N N → ∆Y K reactions turn out to be comparable to those for the N N → N Y K reactions at N N invariant collision energies about 3.1 GeV, and about 5 to 10 times larger at N N invariant collision energies about 3.5 GeV. The microscopic cross sections are parametrized in all isospin channels necessary for the transport model studies of kaon production in heavy ion collisions. These cross sections are then applied in the relativistic transport model to study the sensitivity to the underlying elementary kaon production cross sections.

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Section: ∆N → N Y Kmentioning

confidence: 99%

Resonance model study of kaon production in baryon-baryon reactions for heavy-ion collisions

et al. 1999

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“…There are several versions of the cascade model. In this paper the CASIMIR (CAScade Intranuclear Made In Rossendorf) intranuclear cascade model [22,23] is used for a comparison with experimental data.…”

Section: The Temperature Of π − Mesonsmentioning

confidence: 99%

“…These resonances decay in the course of the collision process or are allowed to be destroyed in collisions with other particles. All further details can be found in [22,23]. We have generated 7000 events of Mg-Mg interactions using the CASIMIR code with impact parameter b = 1 fm (which corresponds to the trigger selection criteria in our experiment) to compare with experimental results.…”

Section: The Temperature Of π − Mesonsmentioning

confidence: 99%

Study of the inclusive reaction at a momentum of 4.3 GeV/c per incident nucleon

Chkhaidze

Dzobava

Gogiberidze³

et al. 1996

J. Phys. G: Nucl. Part. Phys.

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A detailed study of pion production in central Mg-Mg collisions at a momentum of 4.3 GeV/c per incident nucleon was carried out using the GIBS set-up. It has been shown that the dependence of the average kinematical characteristics ( P T and Y ) of π − mesons on multiplicity n − /A P differs from that for NN collisions at the same energy, which is due to nuclear effects.The temperatures of π − mesons have been estimated using two different selection criteria: in the rapidity interval 0.5 Y 2.1 and at angles 90 • ± 10 • in the CMS. A satisfactory fit for π − mesons can be achieved by using a form involving two temperatures T 1 and T 2 . The relative yield of the high-temperature component (T 2 ) is R = (22 ± 3)%. The results obtained by the intranuclear cascade model CASIMIR coincide with the experimental data estimated with both methods.From the analysis of angular distributions of π − mesons the anisotropy coefficient a was obtained. The anisotropy coefficient increases linearly with the kinetic energy E * K (in the CMS). CASIMIR reproduces the increase of a with E * K , but the slope is less steep than from experimental results.

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From basic reaction mechanism to new forms of nuclear matter

Nagamiya

1985

Progress in Particle and Nuclear Physics

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Calculation of kaon production in heavy ion collisions within the cascade model

Cited by 14 publications

References 17 publications

Resonance model study of kaon production in baryon-baryon reactions for heavy-ion collisions

Resonance model study of kaon production in baryon-baryon reactions for heavy-ion collisions

Study of the inclusive reaction at a momentum of 4.3 GeV/c per incident nucleon

From basic reaction mechanism to new forms of nuclear matter

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