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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.19724 |
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| _version_ | 1866910055661568000 |
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| author | Campagnari, Claudio Cho, Sungwoong Choi, Suyong Chung, Seokju Citron, Matthew Santos, Ryan De Los De Roeck, Albert Gastal, Martin Ha, Seungkyu Haas, Andy Hill, Christopher Scott Hong, Byeong Jin Hwang, Haeyun Hwang, Insung Jeong, Hoyong Kim, Minseo Moon, Hyunki Padmanaban, Jayashri Schmitz, Ryan Seo, Changhyun Stuart, David Vargas, Juan Salvador Tafoya Won, Eunil Yoo, Jae Hyeok Yoo, Jinseok Youssef, Ayman Zaraket, Ahmad Zaraket, Haitham Zheng, Collin |
| author_facet | Campagnari, Claudio Cho, Sungwoong Choi, Suyong Chung, Seokju Citron, Matthew Santos, Ryan De Los De Roeck, Albert Gastal, Martin Ha, Seungkyu Haas, Andy Hill, Christopher Scott Hong, Byeong Jin Hwang, Haeyun Hwang, Insung Jeong, Hoyong Kim, Minseo Moon, Hyunki Padmanaban, Jayashri Schmitz, Ryan Seo, Changhyun Stuart, David Vargas, Juan Salvador Tafoya Won, Eunil Yoo, Jae Hyeok Yoo, Jinseok Youssef, Ayman Zaraket, Ahmad Zaraket, Haitham Zheng, Collin |
| contents | The SUB-Millicharge ExperimenT (SUBMET) investigates an unexplored parameter space of millicharged particles with mass $m_χ< $ 1.6 GeV/c$^2$ and charge $Q_χ< 10^{-3}e$. The detector consists of an Eljen-200 plastic scintillator coupled to a Hamamatsu Photonics R7725 photomultiplier tube (PMT). PMT afterpulses, delayed pulses produced after an energetic pulse, have been observed in the SUBMET readout system, especially following primary pulses with a large area. We present a prediction method for afterpulse rates based on measurable parameters, which reproduces the observed rate with approximately 20\% precision. This approach enables a better understanding of afterpulse contributions and, consequently, improves the reliability of background predictions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_19724 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Afterpulse prediction for SUBMET experiment Campagnari, Claudio Cho, Sungwoong Choi, Suyong Chung, Seokju Citron, Matthew Santos, Ryan De Los De Roeck, Albert Gastal, Martin Ha, Seungkyu Haas, Andy Hill, Christopher Scott Hong, Byeong Jin Hwang, Haeyun Hwang, Insung Jeong, Hoyong Kim, Minseo Moon, Hyunki Padmanaban, Jayashri Schmitz, Ryan Seo, Changhyun Stuart, David Vargas, Juan Salvador Tafoya Won, Eunil Yoo, Jae Hyeok Yoo, Jinseok Youssef, Ayman Zaraket, Ahmad Zaraket, Haitham Zheng, Collin Instrumentation and Detectors High Energy Physics - Experiment The SUB-Millicharge ExperimenT (SUBMET) investigates an unexplored parameter space of millicharged particles with mass $m_χ< $ 1.6 GeV/c$^2$ and charge $Q_χ< 10^{-3}e$. The detector consists of an Eljen-200 plastic scintillator coupled to a Hamamatsu Photonics R7725 photomultiplier tube (PMT). PMT afterpulses, delayed pulses produced after an energetic pulse, have been observed in the SUBMET readout system, especially following primary pulses with a large area. We present a prediction method for afterpulse rates based on measurable parameters, which reproduces the observed rate with approximately 20\% precision. This approach enables a better understanding of afterpulse contributions and, consequently, improves the reliability of background predictions. |
| title | Afterpulse prediction for SUBMET experiment |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2510.19724 |