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Performance of the Endcap Time-of-Flight detector in the STAR beam-energy scan

The STAR experiment at RHIC at Brookhaven National Laboratory completed the installation of an endcap time-of-flight subsystem in February 2019. The subsystem provided essential mid-rapidity particle identification for the fixed-target portion of phase II of the STAR beam energy scan. The fixed-targ...

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Auteurs principaux: Labonte, Mathias (Auteur) , Cebra, Daniel (Auteur) , Sweger, Zachary (Auteur) , Eppley, Geary (Auteur) , Geurts, Frank (Auteur) , Söhngen, Yannick (Auteur) , Herrmann, Norbert (Auteur) , Rubio, Esteban (Auteur) , Weidenkaff, Philipp (Auteur) , Deppner, Ingo (Auteur) , Loizeau, Pierre-Alain (Auteur) , Frühauf, Jochen (Auteur) , Emschermann, David (Auteur) , Seck, Florian (Auteur) , Tlusty, David (Auteur) , Hu, Dongdong (Auteur) , Sun, Yongjie (Auteur) , Ljubicic, Tonko (Auteur) , Wang, Yi (Auteur)
Format: Article (Journal)
Langue:anglais
Publié: October 2026
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2026, Volume: 1090, Pages: 1-14
ISSN:1872-9576
DOI:10.1016/j.nima.2026.171612
Accès en ligne:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2026.171612
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0168900226003384
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Notes sur l'auteur:Mathias C. Labonté, Daniel Cebra, Zachary Sweger, Geary Eppley, Frank Geurts, Yannick Söhngen, Norbert Herrmann, Esteban Rubio, Philipp Weidenkaff, Ingo Deppner, Pierre-Alain Loizeau, Jochen Frühauf, David Emschermann, Florian Seck, David Tlusty, Dongdong Hu, Yongjie Sun, Tonko Ljubicic, Yi Wang
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Résumé:The STAR experiment at RHIC at Brookhaven National Laboratory completed the installation of an endcap time-of-flight subsystem in February 2019. The subsystem provided essential mid-rapidity particle identification for the fixed-target portion of phase II of the STAR beam energy scan. The fixed-target program allowed the experiment to access center-of-mass energies from sNN=3.0GeV to sNN=7.7GeV, not accessible by colliding beams. The system’s detectors and readout electronics were designed for the CBM experiment at FAIR and adapted for use at STAR. In this paper, we describe the details of the system in terms of geometrical layout, acceptance, calibration, hit reconstruction, and particle identification. The system achieved a time resolution of about 70 ps and a track-matching efficiency of about 70%, meeting the design goals of the project.
Description:Online verfügbar: 27. April 2026, Artikelversion: 28. April 2026
Gesehen am 13.08.2026
Description matérielle:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2026.171612

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