Deqing Fang
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View article: Precise Measurement of $^{216}$Po Half-life with Exact Parent-daughter Pairing in PandaX-4T
Precise Measurement of $^{216}$Po Half-life with Exact Parent-daughter Pairing in PandaX-4T Open
We report a precise measurement of $^{216}\rm Po$ half-life using the PandaX-4T liquid xenon time projection chamber (TPC). $^{220}\rm Rn $, emanating from a $^{228}\rm Th $ calibration source, is injected to the detector and undergoes suc…
View article: MPD physics performance studies in Bi+Bi collisions at √sNN = 9.2 GeV
MPD physics performance studies in Bi+Bi collisions at √sNN = 9.2 GeV Open
TheMulti-Purpose Detector (MPD) is one of the three experiments of the Nuclotron Ion Collider-fAcility (NICA) complex, which is currently under construction at the Joint Institute for Nuclear Research in Dubna. With collisions of heavy ion…
View article: Measurement of two-neutrino double electron capture half-life of 124Xe with PandaX-4T
Measurement of two-neutrino double electron capture half-life of 124Xe with PandaX-4T Open
A bstract Detailed studies of two-neutrino double electron capture (2 ν DEC) is a crucial step towards searching for the neutrinoless mode to explore the Majorana nature of neutrinos. We have measured precisely the half-life of the 2 ν DEC…
View article: Search for lepton portal dark matter in the PandaX-4T experiment
Search for lepton portal dark matter in the PandaX-4T experiment Open
We report a search for a lepton-portal dark matter model, where dark matter couples to a charged lepton in the standard model. This simplified model naturally leads to photon-mediated dark matter interactions with nuclei, making it suitabl…
View article: R&D of KLM Upgrade for Direct Measurement of Neutral Hadron Momentum via Time-of-Flight in Belle II
R&D of KLM Upgrade for Direct Measurement of Neutral Hadron Momentum via Time-of-Flight in Belle II Open
Accurate momentum determination of a neutral hadron, such as a KL meson or a neutron, remains a significant challenge in particle physics and nuclear physics experiments. The Belle II experiment presents an opportunity to address this chal…
View article: Exploring the possible two-proton radioactivity of 38,39Ti
Exploring the possible two-proton radioactivity of 38,39Ti Open
Two-proton (2$p$) radioactivity represents a rare decay mode that has been experimentally observed only in a selected few nuclei. The exploration of 2$p$ emission is crucial for elucidating the structure, mass, and nucleon-nucleon interact…
View article: Search for Solar Boosted Dark Matter Particles at the PandaX-4T Experiment
Search for Solar Boosted Dark Matter Particles at the PandaX-4T Experiment Open
We present a novel constraint on light dark matter utilizing $1.54$ tonne$\cdot$year of data acquired from the PandaX-4T dual-phase xenon time projection chamber. This constraint is derived through detecting electronic recoil signals resul…
View article: Searching for Neutrinoless Double-Beta Decay of $^{136}$Xe with PandaX-4T
Searching for Neutrinoless Double-Beta Decay of $^{136}$Xe with PandaX-4T Open
We report the search for neutrinoless double-beta decay of $^{136}$Xe from the PandaX-4T experiment with a 3.7-tonne natural xenon target. The data reconstruction and the background modeling are optimized in the MeV energy region. A blind …
View article: Search for Fractionally Charged Particles with CUORE
Search for Fractionally Charged Particles with CUORE Open
The Cryogenic Underground Observatory for Rare Events (CUORE) is a detector array comprised by 988 5 cm×5 cm×5 cm TeO2 crystals held below 20 mK, primarily searching for neutrinoless double-beta decay in Te
View article: Neutron skin and its effects in heavy-ion collisions
Neutron skin and its effects in heavy-ion collisions Open
Neutron skin is an exotic phenomenon that occurs in unstable nuclei. In this study, the various effects of the neutron skin on nuclear reactions and their relationship with the properties of nuclear structures are reviewed. Based on numero…
View article: Measurement of two-neutrino double electron capture half-life of $^{124}$Xe with PandaX-4T
Measurement of two-neutrino double electron capture half-life of $^{124}$Xe with PandaX-4T Open
Detailed studies of two-neutrino double electron capture (2$ν$DEC) is a crucial step towards searching for the neutrino-less mode to explore the Majorana nature of neutrinos. We have measured precisely the half-life of the 2$ν$DEC process …
View article: First Indication of Solar <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> Neutrinos through Coherent Elastic Neutrino-Nucleus Scattering in PandaX-4T
First Indication of Solar Neutrinos through Coherent Elastic Neutrino-Nucleus Scattering in PandaX-4T Open
The PandaX-4T liquid xenon detector at the China Jinping Underground Laboratory is used to measure the solar B
View article: Search for Cosmic-Ray Boosted Sub-MeV Dark-Matter–Electron Scattering in PandaX-4T
Search for Cosmic-Ray Boosted Sub-MeV Dark-Matter–Electron Scattering in PandaX-4T Open
We report the first search for the elastic scatterings between cosmic-ray boosted sub-MeV dark matter (DM) and electrons in the PandaX-4T liquid xenon experiment. Sub-MeV DM particles can be accelerated by scattering with electrons in the …
View article: Search for MeV-Scale Axionlike Particles and Dark Photons with PandaX-4T
Search for MeV-Scale Axionlike Particles and Dark Photons with PandaX-4T Open
Axionlike particles (ALPs) and dark photons (DPs) are viable dark matter particle candidates. We have searched for possible ALP/DP signals in the PandaX-4T liquid xenon detector using 440 kg$\cdot$yr of data. A binned likelihood fit is con…
View article: Exploring New Physics with PandaX-4T Low Energy Electronic Recoil Data
Exploring New Physics with PandaX-4T Low Energy Electronic Recoil Data Open
New particles beyond the standard model of particle physics, such as axions, can be effectively searched through their interactions with electrons. We use the large liquid xenon detector PandaX-4T to search for novel electronic recoil sign…
View article: Dark Matter Search Results from 1.54 Tonne$\cdot$Year Exposure of PandaX-4T
Dark Matter Search Results from 1.54 Tonne$\cdot$Year Exposure of PandaX-4T Open
In this letter, we report the dark matter search results from the commissioning run and the first science run of the PandaX-4T experiment. A blind analysis is carried out on the entire data set. The data processing is improved compared to …
View article: First Indication of Solar $^8$B Neutrino Flux through Coherent Elastic Neutrino-Nucleus Scattering in PandaX-4T
First Indication of Solar $^8$B Neutrino Flux through Coherent Elastic Neutrino-Nucleus Scattering in PandaX-4T Open
The PandaX-4T liquid xenon detector at the China Jinping Underground Laboratory is used to measure the solar $^8$B neutrino flux by detecting neutrinos through coherent scattering with xenon nuclei. Data samples requiring the coincidence o…
View article: Fudan Multi-purpose Active TArget Time Projection Chamber (fMeta-TPC) for Photonnuclear Reaction Experiments
Fudan Multi-purpose Active TArget Time Projection Chamber (fMeta-TPC) for Photonnuclear Reaction Experiments Open
Active Target Time Projection Chambers (AT-TPCs) are state-of-the-art tools in the field of low-energy nuclear physics, particularly suitable for experiments using low-intensity radioactive ion beams or gamma rays. The Fudan Multi-purpose …
View article: Design and test for the CEPC muon subdetector based on extruded scintillator and SiPM
Design and test for the CEPC muon subdetector based on extruded scintillator and SiPM Open
The integration of a scintillator, wavelength-shifting fiber, and silicon photomultiplier (SiPM) has demonstrated superior performance in the K-long and Muon detector (KLM) of the Belle II experiment. This study outlines our research and d…
View article: Isovector giant dipole resonance mode with an improved propagation approach in the framework of EQMD model
Isovector giant dipole resonance mode with an improved propagation approach in the framework of EQMD model Open
View article: Improvement on the linearity response of PandaX-4T with new photomultiplier tube bases
Improvement on the linearity response of PandaX-4T with new photomultiplier tube bases Open
With the expanding reach of physics, xenon-based detectors such as PandaX-4T in the China Jinping Underground Laboratory aim to cover an energy range from sub-keV to multi-MeV. A linear response of the photomultiplier tubes (PMTs) is requi…
View article: Search for Cosmic-ray Boosted Sub-MeV Dark-Matter-Electron Scattering in PandaX-4T
Search for Cosmic-ray Boosted Sub-MeV Dark-Matter-Electron Scattering in PandaX-4T Open
We report the first search for the elastic scatterings between cosmic-ray boosted sub-MeV dark matter and electrons in the PandaX-4T liquid xenon experiment. Sub-MeV dark matter particles can be accelerated by scattering with electrons in …
View article: Detecting Neutrinos from Supernova Bursts in PandaX-4T
Detecting Neutrinos from Supernova Bursts in PandaX-4T Open
Neutrinos from core-collapse supernovae are essential for the understanding of neutrino physics and stellar evolution. The dual-phase xenon dark matter detectors can provide a way to track explosions of galactic supernovae by detecting neu…
View article: Signal Response Model in PandaX-4T
Signal Response Model in PandaX-4T Open
PandaX-4T experiment is a deep-underground dark matter direct search experiment that employs a dual-phase time projection chamber with a sensitive volume containing 3.7 tonne of liquid xenon. The detector of PandaX-4T is capable of simulta…
View article: PandaX-xT: a Multi-ten-tonne Liquid Xenon Observatory at the China Jinping Underground Laboratory
PandaX-xT: a Multi-ten-tonne Liquid Xenon Observatory at the China Jinping Underground Laboratory Open
We propose a major upgrade to the existing PandaX-4T experiment in the China Jinping Underground Laboratory. The new experiment, PandaX-xT, will be a multi-ten-tonne liquid xenon, ultra-low background, and general-purpose observatory. The …
View article: Measurement of Solar $pp$ Neutrino Flux using Electron Recoil Data from PandaX-4T Commissioning Run
Measurement of Solar $pp$ Neutrino Flux using Electron Recoil Data from PandaX-4T Commissioning Run Open
The proton-proton ($pp$) fusion chain dominates the neutrino production from the Sun. The uncertainty of the predicted $pp$ neutrino flux is at the sub-percent level, whereas that of the best measurement is $\mathcal{O}(10\%)$. In this pap…
View article: Improvement on the Linearity Response of PandaX-4T with new Photomultiplier Tubes Bases
Improvement on the Linearity Response of PandaX-4T with new Photomultiplier Tubes Bases Open
With the expanding reach of physics, xenon-based detectors such as PandaX-4T in the China Jinping Underground Laboratory aim to cover an energy range from sub-keV to multi-MeV. A linear response of the photomultiplier tubes (PMTs) is requi…
View article: Shear viscosity of nucleonic matter
Shear viscosity of nucleonic matter Open
View article: Waveform Simulation in PandaX-4T
Waveform Simulation in PandaX-4T Open
Signal reconstruction through software processing is a crucial component of the background and signal models in the PandaX-4T experiment, which is a multi-tonne dark matter direct search experiment. The accuracy of signal reconstruction is…
View article: Design and test for the CEPC muon subdetector based on extruded scintillator and SiPM
Design and test for the CEPC muon subdetector based on extruded scintillator and SiPM Open
A combination of scintillator, wavelength shifting (WLS) fiber, and silicon photomultiplier (SiPM) shows an excellent performance in the `$K_{L}$ and $μ$ detector (KLM)' of the Belle II experiment. In this study, we present the R&D efforts…