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arXiv · 1006.1905

Measurement of $K^*(892)^0$ and $K^0$ mesons in Al+Al collisions at 1.9$A$ GeV

X. Lopez·N. Herrmann·K. Piasecki
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Abstract

New measurement of sub-threshold $K^*(892)^0$ and $K^0$ production is presented. The experimental data complete the measurement of strange particles produced in Al+Al collisions at 1.9$A$ GeV measured with the FOPI detector at SIS/GSI. The $K^*(892)^0$ / $K^0$ yield ratio is found to be $0.0315\pm 0.006 (\mathrm{stat.})\pm 0.012 (\mathrm{syst.})$ and is in good agreement with the UrQMD model prediction. These measurements provide information on in-medium cross section of $K^+$ - $π^-$ fusion which is the dominant process on sub-threshold $K^*(892)^0$ production.

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X. Lopez, N. Herrmann, K. Piasecki. 2010-06-09. Measurement of $K^*(892)^0$ and $K^0$ mesons in Al+Al collisions at 1.9$A$ GeV. https://doi.org/10.1103/physrevc.81.061902

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