Production of light nuclear clusters in heavy-ion collisions

Explosion-evaporation model for fragment production in medium-energy nuclear collisions

“…The first, fast stage of the disassembly process (the explosion) produces a distribution of fragments that, at least at the one-particle inclusive level, can be described statistically. Ao' In fact, ~AT is of the form (14 ) where a is the cross section for forming a source and A is the average …”

A simple expression for the entropy of a fireball from experimental strange particle ratios

“…Our aim is to express the temperature T and the chemical potentials, #~, via experimental ratios R~ in (7). For this we introduce the ratios of particle mass and multiplicity ri = (di/dN)" (m,/rns) 3/2 and the inverse mass-differences (M~-~ = ma + rnB --mc -mo = m~ + mB -me -mB.…”

“…Since its original suggestion, this method has been steadily improved: it has been extended for non charge-symmetric collisions [4]; the decay of unstable fragments into deuterons and protons has been included [5] ; the effects of quantum statistics have been studied E6] ; the ratio has been corrected for the effects stemming from the finite proper volume of the hadrons [7] and of deuterons [8], and from surface effects in finite systems [9].…”

Quantum statistical model of nuclear multifragmentation in the canonical ensemble method

“…Quantum statistical treatment has been applied earlier to the multifragmentation process in Refs. [13][14][15][16][17] but within the grand canonical ensemble providing the conservation of proton and neutron numbers in the mean. The canonical method, which is more suitable for the description of multifragmentation of a finite system, corresponds to the exact conservation of baryon number.…”