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Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurements of the position and energy of incident particles in liquid scintillator (LS)…

Instrumentation and Detectors · Physics 2024-12-02 Wei Jiang , Guihong Huang , Zhen Liu , Wuming Luo , Liangjian Wen , Jianyi Luo

We show that dark matter with a per-nucleon scattering cross section $\gtrsim 10^{-28}~{\rm cm^2}$ could be discovered by liquid scintillator neutrino detectors like BOREXINO, SNO+, and JUNO. Due to the large dark matter fluxes admitted,…

High Energy Physics - Phenomenology · Physics 2019-04-24 Joseph Bramante , Benjamin Broerman , Jason Kumar , Rafael F. Lang , Maxim Pospelov , Nirmal Raj

This study evaluates more than 4,000 tiles made of Hamamatsu visual-sensitive silicon photomultipier (SiPM), each with dimensions of 5 $\times$ 5 cm$^2$, intended for the central detector of the Taishan Anti-neutrino Observatory (TAO), a…

Instrumentation and Detectors · Physics 2024-07-24 X. Chen , G. F. Cao , M. H. Qu , H. W. Wang , N. Anfimov , A. Rybnikov , J. Y. Xu , A. Q. Su , Z. L. Chen , J. Cao , Y. C. Li , M. Qi

A liquid scintillator (LS) is developed for the Taishan Antineutrino Observatory (TAO), a ton-level neutrino detector to measure the reactor antineutrino spectrum with sub-percent energy resolution by adopting Silicon Photomultipliers…

Instrumentation and Detectors · Physics 2021-07-07 Zhangquan Xie , Jun Cao , Yayun Ding , Mengchao Liu , Xilei Sun , Wei Wang , Yuguang Xie

Plastic scintillators (PSs)embedded with wavelength-shifting fibers are widely used in high-energy particle physics, such as in muon taggers,as well as in medical physics and other applications. In this study,a simulation package was built…

Instrumentation and Detectors · Physics 2023-07-21 Guang Luo , Y. K. Hor , Peizhi Lu , Zhimin Wang , Ruhui Li , Min Li , Yichen Li , Liang Zhan , Wei Wang , Yuehuan Wei , Yu Chen , Xiang Xiao , Fengpeng An

A Guide Tube Calibration System (GTCS) has been designed for the Jiangmen Underground Neutrino Observatory (JUNO), in order to measure the detector energy response near the outer radius of the active volume. Recently, a prototype system has…

Instrumentation and Detectors · Physics 2021-07-13 Yuhang Guo , Kangfu Zhu , Qingmin Zhang , Feiyang Zhang , Yue Meng , Jianglai Liu , Eryuan Qu

The Jiangmen Underground Neutrino Observatory will build the world's largest liquid scintillator detector to study neutrinos from various sources. The 20 kt liquid scintillator will be stored in a $\sim$600 t acrylic sphere with 35.4 m…

Instrumentation and Detectors · Physics 2021-05-19 Chuanya Cao , Nan Li , Xiaoyu Yang , Jie Zhao , Yuanxia Li , Zhiyan Cai , Liangjian Wen , Xiaolan Luo , Yuekun Heng , Yayun Ding

We carried out a study of neutrino detection at the experimental fast reactor JOYO using a 0.76 tons gadolinium loaded liquid scintillator detector. The detector was set up on the ground level at 24.3m from the JOYO reactor core of 140MW…

Future large liquid-scintillator detectors can be implemented to observe neutrinos from a core-collapse supernova (SN) in our galaxy in various reaction channels: (1) The inverse beta decay $\overline{\nu}^{}_e + p \to n + e^+$; (2) The…

High Energy Physics - Phenomenology · Physics 2016-07-27 Jia-Shu Lu , Yu-Feng Li , Shun Zhou

The primary objective of the JUNO experiment is to determine the ordering of neutrino masses using a 20-kton liquid-scintillator detector. The 20-inch photomultiplier tube (PMT) plays a crucial role in achieving excellent energy resolution…

Instrumentation and Detectors · Physics 2024-02-06 Yu Zhang , Zhimin Wang , Min Li , Caimei Liu , Narongkiat Rodphai , Yongpeng Zhang , Jilei Xu , Changgen Yang , Yuekun Heng

High precision vertex and energy reconstruction is crucial for large liquid scintillator detectors such as JUNO, especially for the determination of the neutrino mass ordering by analyzing the energy spectrum of reactor neutrinos. This…

Instrumentation and Detectors · Physics 2022-12-01 Gui-hong Huang , Wei Jiang , Liang-jian Wen , Yi-fang Wang , Wu-Ming Luo

JUNO is proposed to determine the neutrino mass hierarchy and rich in many other neutrino topics. A prototype is designed and set up for better understanding sub-systems of future detector. The preliminary results show that its threshold…

Instrumentation and Detectors · Physics 2019-09-04 H. Q. Zhang , Z. M. Wang , Y. P. Zhang , Y. B. Huang , F. J. Luo , P. Zhang , C. C. Zhang , M. H. Xu , J. C. Liu , Y. K. Heng , C. G. Yang , X. S. Jiang , F. Li , M. Ye , H. S. Chen

A future large-volume liquid scintillator detector such as the proposed 50 kton LENA (Low Energy Neutrino Astronomy) detector would provide a high-statistics measurement of terrestrial antineutrinos originating from $\beta$-decays of the…

The Super-light Sterile Neutrino Scenario (SSNS) has been proposed in the literature to explain the suppression of the upturn in the low energy solar data. In this scenario, the mass splitting between the new mass eigenstate, $\nu_0$ and…

High Energy Physics - Phenomenology · Physics 2015-06-16 Pouya Bakhti , Yasaman Farzan

The reliable detection of neutrons in a harsh gamma-ray environment is an important aspect of establishing non-destructive methods for the characterization of spent nuclear fuel. In this study, we present results from extended in-situ…

Instrumentation and Detectors · Physics 2021-10-22 Hanno Perrey , Linus Ros , Mikael Elfman , Ulrika Bäckström , Per Kristiansson , Anders Sjöland

The neutrino floor, a theoretical sensitivity limit for dark matter (DM) direct detections, is being redefined as the boundary of a dynamic ``neutrino fog", where neutrino signals become inevitable, obscuring DM detection due to the…

High Energy Physics - Phenomenology · Physics 2025-08-20 Yingjie Fan , Xuewen Liu , Ning Zhou

The experimental searches for diffuse supernova neutrino background and proton decay in next-generation large liquid-scintillator (LS) detectors are competitive with and complementary to those in the water-Cherenkov detectors. In this…

High Energy Physics - Phenomenology · Physics 2021-03-17 Jie Cheng , Yu-Feng Li , Liang-Jian Wen , Shun Zhou

The recent results from the JUNO reactor neutrino experiment have significantly improved our knowledge of the solar mixing angle $\theta_{12}$ and the solar mass splitting $\Delta m^2_{21}$. We study the impact of these improved estimates…

High Energy Physics - Phenomenology · Physics 2026-01-21 Debasish Borah , Pritam Das , Debajyoti Dutta

We examine the prospects for detecting supernova $\nu_e$ in JUNO, RENO-50, LENA, or other approved or proposed large liquid scintillator detectors. The main detection channels for supernova $\nu_e$ in a liquid scintillator are its elastic…

High Energy Physics - Phenomenology · Physics 2014-12-30 Ranjan Laha , John F. Beacom , Sanjib Kumar Agarwalla