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arXiv · 1307.7470

Si$\Lambda$ViO: A Trigger for $\Lambda$-Hyperons

Robert Muenzer·Martin Berger·Laura Fabbietti
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Abstract

As online trigger for events containing $\Lambda$ hyperons in p+p collisions at $\mathrm{3.1\,GeV}$ a silicon-based device has been designed and built. This system has been integrated close to the target region within the FOPI spectrometer at GSI and was also employed as a tracking device to improve the vertex reconstruction of secondary decays. The design of the detector components, read-out, the trigger capability as well as the tracking performance are presented. An enrichment factor of about 14 was achieved for events containing a $\Lambda$-hyperon candidate.

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Robert Muenzer, Martin Berger, Laura Fabbietti. 2013-07-29. Si$\Lambda$ViO: A Trigger for $\Lambda$-Hyperons. https://doi.org/10.1016/j.nima.2014.01.050

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