학술논문
A high-resolution pixel silicon Vertex Detector for open charm measurements with the \NASixtyOne spectrometer at the CERN SPS
Document Type
Working Paper
Author
Aduszkiewicz, A.; Bajda, M.; Baszczyk, M.; Bryliński, W.; Brzychczyk, J.; Deveaux, M.; Dorosz, P.; Di Luise, S.; Feofilov, G.; Gazdzicki, M.; Igolkin, S.; Jabłoński, M.; Kovalenko, V.; Koziel, M.; Kucewicz, W.; Larsen, D.; Lazareva, T.; Łojek, K.; Majka, Z.; Martinengo, P.; Merzlaya, A.; Mik, L.; Płaneta, R.; Staszel, P.; Suljic, M.; Tefelski, D.; Vechernin, V.
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Subject
Language
Abstract
The study of open charm meson production provides an efficient tool for the investigation of the properties of hot and dense matter formed in nucleus-nucleus collisions. The interpretation of the existing di-muon data from the CERN SPS suffers from a lack of knowledge on the mechanism and properties of the open charm particle production. Due to this, the heavy-ion programme of the \NASixtyOne experiment at the CERN SPS has been extended by precise measurements of charm hadrons with short lifetimes. A new Vertex Detector for measurements of the rare processes of open charm production in nucleus-nucleus collisions was designed to meet the challenges of track registration and high resolution in primary and secondary vertex reconstruction. A small-acceptance version of the vertex detector was installed in 2016 and tested with Pb+Pb collisions at 150\AGeVc. It was also operating during the physics data taking on Xe+La and Pb+Pb collisions at 150\AGeVc conducted in 2017 and 2018. This paper presents the detector design and construction, data calibration, event reconstruction, and analysis procedure.
Comment: 13 pages, 21 figures, Fixed Acknowledgment
Comment: 13 pages, 21 figures, Fixed Acknowledgment