Ponente
Descripción
The WASA-FRS HypHI Collaboration aims to study hypernuclei via heavy-ion induced reactions [1]. The hypernuclear production can be explained by the coalescence between hyperons from the participant zone of collisions and the spectator fragments. In central or peripheral collisions, a significant number of particles are produced. This feature permits the determination of the interaction point of the collision, which has the potential to enhance the precision of the hypernucleus lifetime measurements. A micro-vertex detection system has been developed with the primary objective of determining the primary vertex in the target.
The micro-vertex detection system comprises four stations equipped with single-sided micro-strip silicon detectors. The strip size is 80 μm for the first two stations and 160 μm for the final pair, which are combined in pairs within the same Front-End electronics channel. Signal preamplification and shaping are performed by sixteen ASICs (VATAGP8 from IDEAS). These chips are connected and managed by three motherboards, developed by Alibava Systems.
My contribution will focus on providing a detailed description of the micro-vertex silicon detector, introducing its experimental purposes within the context of upcoming WASA-FRS Collaboration Experiments, and presenting preliminary results of the detector performance from the first experimental tests using a 10 MeV proton beam at CMAM facility (Madrid, Spain).
[1] T.R. Saito, et al., Nature Reviews Physics 3, 803 (2021).
