Pion production in central high energy nuclear collisions

Nuclear Collisions at High Energies

“…The data show downward deviation from the exponential shape not only below 200 MeV but also above 700 MeV, most likely due to the limited phase space for emission of high-energy protons. Cascade calculations (27,28) lead to a slope steeper than the data in the high-energy region, which may suggest that some mechanism other than simple multiple NN collisions is at work.…”

K+ momentum spectrum from (K−, K+) reactions in the intranuclear cascade model

“…There are several different prescriptions for a cascading of the colliding particles. One method is a so-called "closest distance approach" [12,13]; if the minimum relative distance r min for any pair of particles becomes less than σ( √ s)/π, that pair is assumed to collide with each other, where σ( √ s) is the total cross section for the pair at the c.m. energy √ s. In another one, the collision frequency is determined by the mean free path.…”

“…The INC model does quite well for many situations. After the first application to high-energy nuclear collisions [10,11,12,13], it is also applied to pion-nucleus scattering [14,15]. In these ten years, considerable efforts have been devoted to extend the INC model.…”

Multifragmentation in the intranuclear cascade ? percolation approach

“…The description can be found in [31,32]. It is sufficient here to say that particles are followed in phase space and that the present version contains pions and delta's, includes isospin degrees of freedom, Pauli blocking and freezing of the Fermi motion for the spectators.…”