Journal Article/Contribution to a conference proceedings/Contribution to a book

GSI-2024-00350

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Vertex reconstruction and tracking performance of the STS detector with the mCBM setup at SIS18

Ramirez Zaldivar, D. A.GSI* ; CBM Collaboration (Collaboration author)

2024
Sissa Medialab Trieste, Italy

Please use a persistent id in citations: doi:10.22323/1.448.0064  doi:10.15120/GSI-2024-00350

Abstract: The Compressed Baryonic Matter (CBM) is one of the experimental pillars at the Facility forAntiproton and Ion Research (FAIR). The Silicon Tracking System (STS) is the central detectorfor track reconstruction and momentum measurement. It is designed to measure heavy ioncollisions at interaction rates up to 10 MHz. It comprises approximately 900 double-sided siliconstrip sensors with 1024 strips per side, arranged in 8 tracking stations in a magnetic field of1 T · m. In the context of the FAIR Phase-0 program, the mCBM setup at SIS18/GSI is a small-scale precursor of the full CBM experiment, consisting of pre-series productions of all major CBMdetector subsystems aiming to verify CBM’s concepts of free-streaming readout electronics, datatransport, and online reconstruction. The mini-STS (mSTS) setup consists of 11 sensors arrangedin 2 stations and no magnetic field.Heavy ion collisions in the 1 − 2 AGeV/𝑐 range were measured with an average collision rate of500 kHz. The primary vertex is reconstructed using the two layers of the mSTS detector by tracksreconstructed as straight lines. Hit reconstruction efficiency was estimated using correlations withdownstream detectors.

Note: Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Contributing Institute(s):

1. CBM (CBM)
2. Collaboration FAIR: CBM (CBM@FAIR)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)

Experiment(s):

1. S471: mCBM @ SIS18 - A CBM full system test-setup for high-rate nucleus-nucleus collisions at GSI / FAIR (POF3-612; HTC)

Appears in the scientific report 2024

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