Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Computing II

HK 39.5: Talk

Wednesday, March 30, 2022, 15:00–15:15, HK-H5

Analysis status of ETOF at STAR — •Yannick Söhngen — Physikalisches Institut Universität Heidelberg

In 2025/2026 the CBM-Experiment will start operation at the SIS100, currently under construction at FAIR in Darmstadt. To facilitate a smooth start of physics analysis of the experiments at the SIS100 the FAIR Phase 0 program comprises the usage of pre-series equipment in running experiments. As part of the CBM-TOF FAIR Phase 0 program an Endcap-Time-Of-Flight (ETOF) wheel consisting of 108 RPC*s designed for the CBM-TOF wall, was operated at the STAR-Experiment located at RHIC at Brookhaven. This provides on the one hand the opportunity to study the impact of long periods of operation on the system and the detectors and thus helps to streamline the decision-making process for the CBM TOF-Wall. This provides on the one hand the opportunity to explore the physics reach of the installed counters with their superb timing resolution. Of special interest is the performance in the Fixed Target BESII campaign covering the available energy in the CMS range from 3GeV to 13GeV. The status of the data-analysis chain, integrating CBM-analysis elements, and its modeling in the STAR Monte-Carlo framework will be presented and discussed. Preliminary results for the production of the Phi meson and the Lambda baryon will be shown. The project is partially funded by BMF contract 05P21VHFC1.