$\Lambda$ and $K_s^0$ Production in pC Collisions at 10 Gev/c

Abstract

The experimental data from the 2m propane bubble chamber have been analyzed for pC$\to \Lambda (K_s^0)X$ reactions at 10 GeV/c. The estimation of experimental inclusive cross sections for $\Lambda$ and $K_s^0$ production in the p${}^{12}C$ collision is equal to ${\sigma }_{\Lambda }$= 13.3$\pm$1.7 mb and ${\sigma }_{K_s^0}$= 3.8$\pm$0.6 mb, respectively. The measured $\Lambda /{\pi }^{+}$ ratio from pC reaction is equal to (5.3$\pm 0.8)\ast 10^{-2}$. The experimental $\Lambda /{\pi }^{+}$ ratio in the pC reaction is approximately two times larger than the $\Lambda /{\pi }^{+}$ ratio from pp reactions or from simulated pC reactions by FRITIOF model for the same energy. The $\Lambda /{\pi }^{+}$ ratio in interaction C+C at momentum 10 Gev/c is four times larger than the $\Lambda /{\pi }^{+}$ ratio from p+p reactions at the same energy.

arXiv comment9 pages, 3 figures

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