ar X iv : n uc l - ex / 0 30 70 18 v 1 2 3 Ju l 2 00 3 K + - and K − - production in heavy - ion collisions at SIS - energies

ar X iv : n uc l - th / 9 70 30 47 v 2 2 4 M ay 1 99 7 Analysis of Kaon Production at SIS Energies ∗

We analyse the production and propagation of pions and kaons in heavy-ion reactions from 0.8 – 1.8 A·GeV within a coupled channel transport approach including the kaon production channels BB K. Assuming the hyperon selfenergy to be 2/3 of the nucleon selfenergy we find that all inclusive experimental K + spectra at SIS energies can be reproduced reasonably well without any selfenergies for the ...

ar X iv : n uc l - ex / 0 10 70 09 v 1 1 2 Ju l 2 00 1 Production of ω mesons in proton - proton collisions ⋆

The cross section for the production of ω mesons in proton-proton collisions has been measured in a previously unexplored region of incident energies. Cross sections of σ = (7.5± 1.9)μb and σ = (30.8± 3.4) μb (with 20% systematic uncertainties) were extracted at 92 MeV and 173 MeV excess energy, respectively. The angular distribution of the ω at ǫ = 173 MeV is strongly anisotropic, demonstratin...

ar X iv : n uc l - ex / 0 70 10 63 v 1 2 5 Ja n 20 07 Ξ 0 ( 1530 ) Production in Heavy - Ion Collisions and its

ar X iv : n uc l - th / 0 30 20 68 v 2 1 2 Ju n 20 03 Light clusters production as a probe to nuclear symmetry energy

Using an isospin-dependent transport model for heavy-ion collisions induced by neutron-rich nuclei at intermediate energies, we study the production of light clusters such as deuteron, triton, and He via coalescence of nucleons. We find that both the yields and energy spectra of these light clusters are affected significantly by the density dependence of nuclear symmetry energy, with a stiffer ...

ar X iv : n uc l - th / 0 40 30 40 v 1 1 5 M ar 2 00 4 Photon production from non - equilibrium QGP in heavy ion collisions

We present a calculation of thermal photon production i.e. photons from secondary interactions among particles produced in heavy ion collisions at collider energies. This is done within the framework of hydrodynamics. We take into account the lack of chemical equilibrium in QGP. It turns out that main effects from chemical non-equilibrium composition of QGP, reduction of particle number and inc...