Gießen 2024 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 70: Hadron Structure and Spectroscopy IX

HK 70.2: Talk

Thursday, March 14, 2024, 16:15–16:30, HBR 62: EG 18

The Silicon Tracking System of the E16 experiment at J-PARC: commissioning and results from the test beam — •Dairon Rodriguez Garces, Maksym Teklishyn, Adrian Rodriguez Rodriguez, Alberica Toia, Joerg Lehnert, Kazuya Aoki, Rento Yamada, Shuta Ochiai, and Kyoichiro Ozawa for the CBM collaboration — GSI. Darmstadt, Germany

The J-PARC E16 experiment has the goal to search for signatures of the spontaneously broken chiral symmetry and its (partial) restoration, through the study in-medium modification of the vector mesons, particularly the phi meson, decaying via di-electron channel, with a high intensity 30 GeV proton beam interacting with C and Cu targets at rates up to 10 MHz. For this purpose, the experiment will use modules constructed using the same technology and procedures as the modules of the Silicon Tracking System (STS) of the CBM experiment.

A total of 10 modules were assembled, tested, characterized and then installed in the E16 detector setup. The detector was commissioned in a beam test experiment at Tsukuba, where the detector modules could be exposed to a 3 GeV electron beam. In preparation for the beam test the modules were characterized and performance studies accomplished to assess the quality of the setup. In the beamtime 3 modules were operated and illuminated in two planes by the electron beam.

This work will show the results of commissioning and operation of the E16 modules, as well as the status of the data analysis and the insights that we have gained from it, in view of the upcoming series production of STS modules for the CBM experiment.