Droplet formation in expanding nuclear matter: a system-size dependent study
نویسندگان
چکیده
منابع مشابه
- ex / 0 40 50 14 v 1 1 8 M ay 2 00 4 Droplet formation in expanding nuclear matter : a system - size dependent study
Cluster production is investigated in central collisions of Ca+Ca, Ni+Ni, 96Zr+96Zr, 96Ru+96Ru, Xe+CsI and Au+Au reactions at 0.4A GeV incident energy. We find that the multiplicity of clusters with charge Z ≥ 3 grows quadratically with the system’s total charge and is associated with a mid-rapidity source with increasing transverse velocity fluctuations. When reduced to the same number of avai...
متن کاملDroplet formation in an expanding nucleon gas
In energetic central heavy ion collisions it is generally assumed that, after going thru an early stage of hot and compressed nuclear matter, the system, before freezing out, will undergo a substantial expansion causing local cooling. At energies around or above 10A GeV the current picture is that the hot system while cooling passes from a phase involving at least partially deconfined quarks an...
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The formation rate of quark matter droplets in neutron stars is calculated from a combination of bubble formation rates in cold degenerate and high temperature matter. Nuclear matter calculations of the viscosity and thermal conductivity are applied. Results show that droplets form only in the core of neutron stars shortly after supernova collapse, where pressures and temperatures are high, and...
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The quark-meson-coupling model is used to study droplet formation from the liquid-gas phase transition in cold asymmetric nuclear matter. The critical density and proton fraction for the phase transition are determined in the mean field approximation. Droplet properties are calculated in the ThomasFermi approximation. The electromagnetic field is explicitly included and its effects on droplet p...
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We investigate deuteron formation in nuclear matter at finite temperatures within a systematic quantum statistical approach. We consider formation through three-body collisions relevant already at rather moderate densities because of the strong correlations. The three-body in-medium reaction rates driven by the break-up cross section are calculated using exact three-body equations (Alt-Grassber...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2004
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2004.05.031