On $pp \to p K Λ, N K Σ, pp φ$ -- the basic ingredients for strangeness production in heavy ion collisions

Details On $pp \to p K Λ, N K Σ, pp φ$ -- the basic ingredients for strangeness production in heavy ion collisions On $pp \to p K Λ, N K Σ, pp φ$ -- the basic ingredients for strangeness production in heavy ion collisions

2007-11-08

arxiv.org/abs/0711.1194v1

Int.J.Mod.Phys.E17:1753-1764,2008

Physics

Nuclear Physics

Nuclear Theory

12 pages, 12 figures, Contributed to the proceedings of the International workshop on nuclear dynamics in heavy-ion reactions

Scientific paper

10.1142/S0218301308010751

The strangeness production in heavy ion collisions was proposed to be probes of the nuclear equation of state, Kaon potential in nuclear medium, strange quark matter and quark-gluon plasma, etc. However, to act as reliable probes, proper understanding of the basic ingredients for the strangeness production, such as $pp \to pK^+\Lambda$, $pp \to pp \phi$ and $pp \to nK^+\Sigma^+$ is necessary. Recent study of these reactions clearly shows that previously ignored contributions from the spin-parity $1/2^-$ resonances, $N^*(1535)$ and $\Delta^*(1620)$, are in fact very important for these reactions, especially for near-threshold energies. It is necessary to include these contributions for getting reliable calculation for the strangeness production in heavy ion collisions.

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