SiΛvio: A trigger for Λ-hyperons

SiΛvio: A trigger for Λ-hyperons
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SiÎvio:β-超子的触发器

DOI:
10.1016/j.nima.2014.01.050
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发表时间:
2014
影响因子:
1.4
通讯作者:
N. Bastid
N. Bastid
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
R. Münzer;M. Berger;L. Fabbietti;R. Averbeck;A. Andronic;V. Barret;Z. Basrak;N. Bastid

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为了在线触发3.1GeV的p+p碰撞中包含Λ超子的事件,设计并制造了一种硅基装置。该系统已经集成在GSI的FOPI光谱仪的靶区附近,并被用作跟踪设备来改进二次衰变的顶点重建。给出了探测器部件的设计、读出、触发能力以及跟踪性能。对于包含Λ超子候选者的事件,实现了大约14倍的浓缩因子。
As online trigger for events containing Λ hyperons in p+ p collisions at 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 Λ-hyperon candidate.
DOI: --
发表时间: 2005
期刊:
影响因子: --
作者:
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