منابع مشابه
K production in baryon-baryon and heavy-ion collisions
Kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions are studied in a boson exchange model. For the latter two interactions, the exchanged pion can be on-mass shell, only contributions due to a virtual pion are included via the Peierls method by taking into account the finite delta width. With these cross sections and also those for pion-baryon interacti...
متن کاملStrange Baryon Production in Heavy Ion Collisions
The rapidity distribution of Λ and Λ̄ produced in nucleus-nucleus collisions at CERN energies is studied in the framework of an independent string model with quark-antiquark as well as diquark-antidiquark pairs in the nucleon sea. It is shown that, besides the Λ-Λ̄ pair production resulting from the fragmentation of sea diquarks, final state interactions of co-moving secondaries π +N → K + Λ and ...
متن کاملBaryon phase-space density in heavy-ion collisions
The baryon phase-space density at mid-rapidity from central heavy-ion collisions is estimated from proton spectra with interferometry and deuteron coalescence measurements. It is found that the mid-rapidity phase-space density of baryons is significantly lower at the SPS than the AGS, while those of total particles (pion + baryon) are comparable. Thermal and chemical equilibrium model calculati...
متن کاملMultistrange Baryon Production in Relativistic Heavy Ion Collisions
One possible signal for the quark-gluon plasma, that is expected to be formed in relativistic heavy ion collisions, is enhanced production of strange particles [1], particularly those consisting of multistrange quarks such as cascade and omega as well as their antiparticles. Although transport models [2] can explain the enhanced production of light strange hadrons such as kaons and antikaons by...
متن کاملResonance model study of kaon production in baryon baryon reactions for heavy ion collisions
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 m...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2014
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2014.08.095