Production of phi mesons in subthreshold heavy-ion collisions
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Within a BUU type transport model we study $ϕ$ meson production in subthreshold Ni+Ni and Ru+Ru reactions. For the first time we included in our model the elementary reaction channels $ρ+N,Δ\to ϕ+N$, $π+N(1520) \to ϕ+N$ and $πρ$ $\to$ $ϕ$. In spite of a substantial increase of the $ϕ$ multiplicities by these channels our results stay significantly below the preliminary experimental data.
4 pages, 2 figures, version to be published in the proceedings of the SQM2001 Conference (Frankfurt, Germany, 25-29 Sep 2001)
4 pages, 2 figures, version to be published in the proceedings of the SQM2001 Conference (Frankfurt, Germany, 25-29 Sep 2001)