The Silicon Tracking System of the E16 experiment at J-PARC: construction, installation and commissioning in beam test experiments

Dairon Rodríguez Garcés; Rento Yamada; Kazuya Aoki; Lady Maryann Collazo Sánchez; David Emschermann; Hideto En'yo; Jürgen Eschke; Ulrich Frankenfeld; David Gutiérrez Menéndez; Johann M. Heuser; Masaya Ichikawa; Ralf Kapell; Irakli Keshelashvili; Jörg Lehnert; Tomoki Murakami; Shunnosuke Nagafusa; Wataru Nakai; Satomi Nakasuga; Megumi Naruki; Frederike Nickels; Shuta Ochiai; Kyoichiro Ozawa; Darío Alberto Ramírez Zaldívar; Adrian Rodríguez Rodríguez; Katia Santos Marrero; Christian Joachim Schmidt; Hans Rudolf Schmidt; Kerstin Schuenemann; Patryk Semeniuk; Mehulkumar Shiroya; Carmen Simons; Sindhu Subramanya; Oleksandr Suddia; Tomonori Takahashi; Maksym Teklishyn; Alberica Toia; Oleg Vasylyev; Robert Visinka; Yorito Yamaguchi; Wojciech Zabolotny

arXiv · 2606.19400

The Silicon Tracking System of the E16 experiment at J-PARC: construction, installation and commissioning in beam test experiments

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Abstract

The J-PARC E16 experiment aims to search for signatures of chiral symmetry restoration. It studies in-medium modifications of vector mesons that decay via the dielectron channel. The measurements use a high-intensity 30 GeV proton beam with C and Cu targets at rates up to 10 MHz. To achieve this, the experiment upgrades its tracking, by introducing innermost detector modules constructed with the same technology and procedures as the modules of the Silicon Tracking System (STS) of the Compressed Baryonic Matter (CBM) experiment at Facility for Antiproton and Ion Research (FAIR). A total of 15 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 calibrated, and performance studies were accomplished to assess the quality of the setup. During beamtime, three modules were operated and illuminated in two planes by the electron beam. This paper presents the results of the construction, characterization, commissioning, and operation of the E16-STS modules in beam test experiments.

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Dairon Rodríguez Garcés, Rento Yamada, Kazuya Aoki, Lady Maryann Collazo Sánchez, David Emschermann, Hideto En'yo, Jürgen Eschke, Ulrich Frankenfeld, David Gutiérrez Menéndez, Johann M. Heuser, Masaya Ichikawa, Ralf Kapell, Irakli Keshelashvili, Jörg Lehnert, Tomoki Murakami, Shunnosuke Nagafusa, Wataru Nakai, Satomi Nakasuga, Megumi Naruki, Frederike Nickels, Shuta Ochiai, Kyoichiro Ozawa, Darío Alberto Ramírez Zaldívar, Adrian Rodríguez Rodríguez, Katia Santos Marrero, Christian Joachim Schmidt, Hans Rudolf Schmidt, Kerstin Schuenemann, Patryk Semeniuk, Mehulkumar Shiroya, Carmen Simons, Sindhu Subramanya, Oleksandr Suddia, Tomonori Takahashi, Maksym Teklishyn, Alberica Toia, Oleg Vasylyev, Robert Visinka, Yorito Yamaguchi, Wojciech Zabolotny. 2026-07-07. The Silicon Tracking System of the E16 experiment at J-PARC: construction, installation and commissioning in beam test experiments. https://arxiv.org/abs/2606.19400

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