Design and Mechanical Integration of Scintillation Modules for SUB-Millicharge ExperimenT (SUBMET)

Claudio Campagnari; Sungwoong Cho; Suyong Choi; Seokju Chung; Matthew Citron; Albert De Roeck; Martin Gastal; Seungkyu Ha; Andy Haas; Christopher Scott Hill; Byeong Jin Hong; Haeyun Hwang; Insung Hwang; Hoyong Jeong; Hyunki Moon; Jayashri Padmanaban; Ryan Schmitz; Changhyun Seo; David Stuart; Eunil Won; Jae Hyeok Yoo; Jinseok Yoo; Ayman Youssef; Ahmad Zaraket; Haitham Zaraket

doi:10.1093/ptep/ptaf165

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arXiv · 2507.19311

Design and Mechanical Integration of Scintillation Modules for SUB-Millicharge ExperimenT (SUBMET)

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Abstract

We present a detailed description of the detector design for the SUB-Millicharge ExperimenT (SUBMET), developed to search for millicharged particles. The experiment probes a largely unexplored region of the charge-mass parameter space, focusing on particles with mass $m_\chi < 1.6~\textrm{GeV}/c^2$ and electric charge $Q < 10^{-3}e$. The detector has been optimized to achieve high sensitivity to interactions of such particles while maintaining effective discrimination against background events. We provide a comprehensive overview of the key detector components, including scintillation modules, photomultiplier tubes, and the mechanical support structure.

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Claudio Campagnari, Sungwoong Cho, Suyong Choi, Seokju Chung, Matthew Citron, Albert De Roeck, Martin Gastal, Seungkyu Ha, Andy Haas, Christopher Scott Hill, Byeong Jin Hong, Haeyun Hwang, Insung Hwang, Hoyong Jeong, Hyunki Moon, Jayashri Padmanaban, Ryan Schmitz, Changhyun Seo, David Stuart, Eunil Won, Jae Hyeok Yoo, Jinseok Yoo, Ayman Youssef, Ahmad Zaraket, Haitham Zaraket. 2025-07-25. Design and Mechanical Integration of Scintillation Modules for SUB-Millicharge ExperimenT (SUBMET). https://doi.org/10.1093/ptep%2Fptaf165

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