Conveners
Dark Matter and Its Detection: parallel session 1A
- Ning Zhou (Shanghai Jiao Tong University)
Dark Matter and Its Detection: parallel session 1B
- Tony Noble (Queen's University)
Dark Matter and Its Detection: parallel session 2B
- wei chao
Dark Matter and Its Detection: parallel session 2A
- Roberto Santorelli (CIEMAT)
Dark Matter and Its Detection: parallel session 3B
- Yongcheng Wu (Nanjing Normal University)
Dark Matter and Its Detection: parallel session 3A
- Ziqing Hong (University of Toronto)
Dark Matter and Its Detection: parallel session 4A
- Shin Ted Lin
Dark Matter and Its Detection: parallel session 5A
- Yi Wang (IHEP, CAS)
Dark Matter and Its Detection: parallel session 5B
- Xiaojun Bi
Dark Matter and Its Detection: parallel session 6A
- Masaki Yamashita (Kavli IPMU, the University of Tokyo)
Dark Matter and Its Detection: parallel session 6B
- Kenny Chun Yu Ng (The Chinese University of Hong Kong)
Dark Matter and Its Detection: parallel session 7B
- Masayuki Wada (Astrocent, CAMK PAN)
Dark Matter and Its Detection: parallel session 8B
- Junhui Liao
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Jia Liu (Peking University)25/08/2025, 14:00Dark Matter and Its DetectionOral
We propose utilizing radio telescopes to investigate the conversion of dark photons, a potential ultralight dark matter candidate, through two approaches: solar observations and direct telescope-based detection. In the first scenario, dark photon dark matter can efficiently convert into photons in the solar coronaโthe outermost region of the solar atmosphereโwhere the plasma mass of photons...
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Maxime Pierre (Nikhef)25/08/2025, 14:00Dark Matter and Its DetectionOral
The XENONnT detector, operating with 5.9 tonnes of liquid xenon at LNGS, is designed for the direct detection of Weakly Interacting Massive Particles (WIMPs) in the Universe. Following the successful completion of its first science run in November 2021, the detector has now concluded a new science run in August 2023, leading to blinded analyses with an accumulated exposure of 3.1 tonne ร year....
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Yue-Lin Sming Tsai (PMO)25/08/2025, 14:20Dark Matter and Its DetectionOral
Axion-like particles (ALPs) are hypothetical extensions of the Standard Model, with the potential to account for both dark matter and various astrophysical phenomena. This seminar will explore two distinct detection approaches for ALPs: one focusing on ALPs as long-lived particles and the other considering them as dark matter candidates. The first studyย (2410.16065) investigates the production...
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Amy Cottle (University College London)25/08/2025, 14:20Dark Matter and Its DetectionOral
The LUX-ZEPLIN (LZ) experiment is a dark matter direct detection experiment operating almost a mile underground at the Sanford Underground Research Facility in Lead, South Dakota. LZ uses a 7 active-tonne dual-phase xenon time projection chamber primarily designed to detect weakly interacting massive particles (WIMPs), a well-motivated class of dark matter candidate. This talk will give the...
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Teng Ma (ICTP-AP)25/08/2025, 14:40Dark Matter and Its DetectionOral
The Electron-Ion Collider, a proposed high-luminosity facility with advanced charged particle and photon detection capabilities, provides unique opportunities to uncover new physics beyond the Standard Model.
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We analyze its sensitivity to dark photons produced through electron bremsstrahlung in coherent scattering. Thanks to its beam energy settings, it has the potential to comprehensively... -
minzhen zhang (SJTU)25/08/2025, 14:40Dark Matter and Its DetectionOral
PandaX-4T experiment has studied the ultra low energy data to enhance the sensitivity for light dark matter with sub-GeV mass. We combine ionization-only data and scintillation-ionization paired data to investigate five benchmark light dark matter interaction models, including spin-independent dark matter-nucleon interaction, spin-dependent dark matter-nucleon neutron-only and proton only...
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Alessandro Lella (Bari University, INFN Bari)25/08/2025, 15:00Dark Matter and Its DetectionOral
Core-collapse Supernovae (SNe) are considered among the most promising astrophysical laboratories to study the phenomenology of axion-like particles (ALPs). Because of the extreme condition of temperature and density reached in the core of the exploding star, ALPs can be copiously produced by means of their interactions with nuclear matter. In this talk, I will discuss how a large emission of...
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Masaki Yamashita (Kavli IPMU, the University of Tokyo)25/08/2025, 15:00Dark Matter and Its DetectionOral
The XENON-LUX-ZEPLIN-DARWIN (XLZD) project represents the next step in the global effort to directly detect dark matter and explore neutrino physics using 60-80 tonnes liquid xenon time projection chamber. Building on the success of current-generation experiments such as XENONnT and LZ, the XLZD collaboration is designing a detector with unprecedented sensitivity to WIMP-nucleon interactions...
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xiaoyong chu (UCAS)25/08/2025, 15:20Dark Matter and Its DetectionOral
This talk focuses on the popular framework of strongly interacting massive particle (SIMP), where dark pion serves as the dark matter candidate. While it is well known that for SIMP the freeze-out process is typically 3DM ->2DM via DM self-interactions, I will show that the existence of other low-hanging composite states, such as sigma-like and rho-like dark mesons, can dramatically change the...
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Knut Dundas Morรฅ (Zรผrich University)25/08/2025, 15:20Dark Matter and Its DetectionOral
Liquid xenon time projection chambers have increased in size from kilogram to multi-tonne scale and provide the most stringent limit on WIMP dark matter-nucleon interactions for dark matter masses above $6~\textrm{GeV}/c^2$. These large detectors have simultaneously been able to reduce the background levels, due to radioactive impurities both in the detector structure and dissolved in the lXe...
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Peizhi Du (University of Science and Technology of China)25/08/2025, 16:00Dark Matter and Its DetectionOral
Direct detection searches for dark matter are insensitive to dark matter particles that have large interactions with ordinary matter, which are stopped in the atmosphere or the Earthโs crust before reaching terrestrial detectors. We use โdarkโ calibration images from the James Webb Space Telescope to derive novel constraints on sub-GeV dark matter candidates that scatter off electrons. In this...
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Walter Bonivento (INFN Cagliari)25/08/2025, 16:00Dark Matter and Its DetectionOral
DarkSide-20k is an experiment aimed at the direct detection of Weakly Interacting Massive Particle dark matter. Currently under construction at the Laboratori Nazionali del Gran Sasso (LNGS) of the INFN in Italy, the experiment utilizes a 50-tonne dual-phase Liquid Argon TPC. This TPC employs underground, low-radioactivity argon and is surrounded by two active veto systems, all housed within a...
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Shawn Westerdale (University of California, Riverside)25/08/2025, 16:20Dark Matter and Its DetectionOral
DEAP-3600, featuring a 3.3-tonne liquid argon target, is a dark matter direct detection experiment located at SNOLAB in Sudbury, Canada. Since 2019, it has set the most stringent exclusion limit in argon for Weakly Interacting Massive Particles (WIMPs) above 20 GeV/cยฒ.
Building on its established analyses, the experiment has broadened its physics scope to include MeV-scale recoil energies,...
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Qinrui Liu (Queen's University)25/08/2025, 16:20Dark Matter and Its DetectionOral
Dark matter accumulates inside Earth as the planet plows through the dark matter halo in the Milky Way. Possible annihilation of dark matter to Standard Model particles can be probed in indirect dark matter searches. Among the messengers, neutrinos are uniquely ideal as they can escape dense regions. Neutrino telescopes offer opportunities to search for dark matter signals from the Earth. Such...
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Liao Junhui25/08/2025, 16:40Dark Matter and Its DetectionOral
The evidence of dark matter from astrophysics and cosmology is overwhelmingly robust, yet the evidence of dark matter from particle physics is continuously null. ALETHEIA aims to hunt for low-mass dark matter with liquid helium-filled TPCs. Thanks to such unique advantages as (a) ease to purify, (b) no radioactive isotopes, and (c) potentially strong ER/NR discrimination, liquid helium-filled...
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Takashi Toma (Kanazawa University)25/08/2025, 16:40Dark Matter and Its DetectionOral
In some scenarios, the dark matter relic abundance is set by the semi-annihilation of two dark matter particles into one dark matter particle and one Standard Model particle. These semi-annihilations might still be occurring today in the Galactic Center at a significant rate, generating a flux of boosted dark matter particles. We investigate the possible signals of this flux component in...
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Mr Haoming Nie (Tsinghua University)25/08/2025, 17:00Dark Matter and Its DetectionOral
Solar reflected dark matter refers to dark matter particles reflected and accelerated by the high energy electrons in solar interior. This process can boost MeV dark matter energies, enhancing potential signals in direct detection experiments. Extending this idea, we demonstrate that in detectors composed of single crystals such as silicon or germanium, the collision rate and energy deposition...
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Suerfu Burkhant (High Energy Accelerator Research Organization (KEK))25/08/2025, 17:00Dark Matter and Its DetectionOral
SABRE is an international collaboration that will operate similar particle de-
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tectors in the Northern (SABRE North) and Southern Hemispheres (SABRE
South). This innovative approach distinguishes possible dark matter signals
from seasonal backgrounds, a pioneering strategy only possible with a southern
hemisphere experiment. SABRE South is located at the Stawell Underground
Physics... -
Mr Samuel S.H. Tse (The Chinese University of Hong Kong)25/08/2025, 17:20Dark Matter and Its DetectionOral
We propose detecting dark matter by using neutron capture events induced by Cosmic-Ray Boosted Dark Matter (BDM)-nucleon scattering. This approach leverages the directional preference of BDM originating from the Galactic Centre to suppress the background. We demonstrate that it is possible to statistically reconstruct the BDM direction through neutron capture events. Large liquid scintillator...
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Krzysztof Szczepaniec (I.N.F.N. Laboratori Nazionali del Gran Sasso)25/08/2025, 17:20Dark Matter and Its DetectionOral
The SABRE experiment aims to deploy arrays of ultra-low-background NaI(Tl) crystals to carry out a model-independent search for dark matter through the annual modulation signature. SABRE will be a double-site experiment, consisting of two separate detectors in the two terrestrial hemispheres.
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The SABRE North detector will be installed underground at LNGS and will deploy an array of 9... -
Prof. Cheng-Pang Liu (National Dong Hwa University)25/08/2025, 17:40Dark Matter and Its DetectionOral
Direct searches of sub-GeV light dark matter (LDM) in our galaxy
through its interactions with electrons has been a rapidly-growing
area. As the kinetic energy of such a LDM particle is generally below
keV, its scattering triggers sub-keV electronic recoils in detectors,
and a proper understanding of these events usually requires reliable
many-body theory inputs.In this talk, we...
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Insoo Lee (Institute for basic science)25/08/2025, 17:40Dark Matter and Its DetectionOral
COSINE-100 is a direct detection experiment designed to test the DAMA/LIBRA collaboration's claim of observing an annual modulation signal attributed to dark matter interactions using NaI(Tl) crystals. From September 2016 to March 2023, COSINE-100 collected data with a 106 kg NaI(Tl) detector array at the Yangyang Underground Laboratory in Korea.
Several dark matter search analyses were...
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Maria Martinez (CAPA-Universidad de Zaragoza)25/08/2025, 18:00Dark Matter and Its DetectionOral
For over two decades, the DAMA/LIBRA experiment has reported an annual modulation in the low-energy region, consistent with the expectation from dark matter (DM) in the galactic halo due to Earth's motion around the Sun. For most WIMP candidates, this result is excluded by the null results of other experiments, making it one of the most puzzling anomalies in the field. However, such...
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Sven Heinemeyer (IFT (CSIC, Madrid))26/08/2025, 14:00Dark Matter and Its DetectionOral
For the first time the two big LHC experiments, ATLAS and CMS, report consistently about excesses in the search for EW SUSY particles, seen in two different search channels by each experiment. We interpret these excesses as the production of two light MSSM particles, decaying to Dark Matter (as naturally predicted by the MSSM). These interpretations make clear predictions for future collider...
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Dr Emanuele Michielin (Karlsruhe Institute of Technology)26/08/2025, 14:00Dark Matter and Its DetectionOral
The Super Cryogenic Dark Matter Search (SuperCDMS) SNOLAB experiment is currently under construction 2 km underground at the SNOLAB facility near Sudbury, Canada. The experiment will utilize 24 cryogenic germanium and silicon calorimeter detectors, with the aim of achieving world-leading sensitivity in the direct search for dark matter (DM) particles interacting with nuclei, spanning DM...
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Daneng Yang (Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China)26/08/2025, 14:20Dark Matter and Its DetectionOral
Self-interacting dark matter (SIDM) provides a promising solution to small-scale structure anomalies, yet a unified explanation across mass scales remains challenging. Recent dwarf galaxy surveys favor a relatively small cross section of $\sim 0.3 \rm cm^2/g$---insufficient to induce core collapse---while strong lensing signals in galaxy clusters require dense inner subhalos typically...
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Michelangelo Traina (Instituto de Fรญsica de Cantabria)26/08/2025, 14:20Dark Matter and Its DetectionOral
The DAMIC-M (DArk Matter In CCDs at Modane) experiment is scheduled to begin operations at the Modane underground laboratory (LSM) in early 2026. This talk presents the current status of the project, highlighting recent results from its prototypeโthe Low-Background Chamber (LBC)โand progress on detector construction at LSM. Data from the LBC have been used to exclude theoretical benchmarks...
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Siyuan Hou (Purple Mountain Observatory)26/08/2025, 14:40Dark Matter and Its DetectionOral
We present an analytic model for gravitational lensing by self-interacting dark matter (SIDM) halos that captures the full range of gravothermal evolution, including the core-collapse regime. Leveraging the universal behavior of SIDM halos, we calibrate the lensing potential using fluid simulations and derive closed-form expressions for the deflection angle and surface density profile. Our...
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Carlo Bucci (INFN - LNGS)26/08/2025, 14:40Dark Matter and Its DetectionOral
The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) experiment, located in Laboratori Nazionali del Gran Sasso - INFN in Italy, aims to directly detect light dark matter (DM) particles. Scintillating CaWO$_4$ย crystals, equipped with Transition Edge Sensor (TES), are operated as cryogenic detectors at mK temperatures, as target material for DM-nucleus scattering. CRESST...
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Chung-Lin SHAN (SCTIR)26/08/2025, 15:00Dark Matter and Its DetectionOral
In the last (more than) three decades, more than 40 experiments have been built or are being planned to search for different WIMP candidates by direct detection of their (elastic) scattering signals off target nuclei in low-background underground laboratory detectors. For an estimate of the scattering event rate as well as for expected determinations of WIMP properties in the future, the...
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Shin Ted Lin26/08/2025, 15:00Dark Matter and Its DetectionOral
The CDEX program has been pursuing the direct detection of light dark matter candidates using an array of germanium detectors at the China Jinping underground laboratory, deepest operating underground facility in Sichuan, China. Recent investigations have explored the modulation effects of light WIMPs, WIMP-nucleus interactions via the Migdal effect, dark photon models, solar axions,...
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Sahabub Jahedi (South China Normal University)26/08/2025, 15:20Dark Matter and Its DetectionOral
We explore lepton flavor violating (LFV) dark matter (DM) interactions within an effective field theory framework, considering the operators of the form $\bar \ell_j \Gamma \ell_i,{\tt DM}^2$ for $(ij) = (\mu e,, \tau e,, \tau \mu)$ and where DM can be scalar, fermion, and vector. We analyze the three-body decay $\ell_i \to \ell_j + {\tt DM} + {\tt DM}$, showing its utility in probing operator...
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Melih Solmaz (Heidelberg University)26/08/2025, 15:20Dark Matter and Its DetectionOral
Driven by the null results in the searches for dark matter, the field of direct dark matter detection is constantly evolving to push new frontiers. Ultimately, a vast parameter space for dark matter masses below a few GeV is yet to be explored. That said, low mass dark matter candidates necessitate novel detector designs with lower thresholds and alternative target materials compared to e.g.,...
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Paul Vittaz (CNRS - IP2I)26/08/2025, 16:00Dark Matter and Its DetectionOral
TESSERACT (Transition Edge Sensor with Sub-Ev Resolution and Cryogenic Targets) is an experiment lead by American, French and Swiss teams aiming at looking for Light Dark Matter in the Laboratoire Souterrain de Modane.
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Several cryogenic targets will be used in order to be sensitive to different DM interactions, allowing to explore both Electronic Recoils Dark Matter (ERDM) and Nuclear... -
William Woodley (University of Alberta)26/08/2025, 16:20Dark Matter and Its DetectionOral
The PICO Collaboration uses bubble chamber technology for direct-detection searches of Weakly-Interacting Massive Particles (WIMP). Filled with superheated C$_3$F$_8$, the thermodynamic threshold of PICO detectors can be set such that the detectors are optimised for dark matter detection while being insensitive to gammas from electron recoils. The presence of fluorine atoms in the C$_3$F$_8$...
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Davide Fiorina (GSSI and INFN)26/08/2025, 16:40Dark Matter and Its DetectionOral
The CYGNO/INITIUM project introduces an innovative approach to directional Dark Matter detection using a gaseous Time Projection Chamber (TPC). Targeting low mass (0.5-50 GeV) WIMPs-like Dark Matter, the experiment uses a He/CF4 gas mixture sensitive to both spin-dependent and spin-independent interactions at atmospheric pressure with optical readout. Building on the success of our 50 L...
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Dan Zhang (University of Washington)26/08/2025, 17:00Dark Matter and Its DetectionOral
The QCD axion is a natural solution to the strong CP problem, making it one of the most well-motivated dark matter candidates. Using dilution refrigerators and quantum amplifiers, the Axion Dark Matter eXperiment (ADMX) has reached to the benchmark models of QCD axion dark matter: KimโShifmanโVainshteinโZakharov (KSVZ) and DineโFischlerโSrednickiโ Zhitnitsky (DFSZ). I will give an overview on...
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Juan Pablo Arcila Maldonado (Max Planck Institute for Physics)26/08/2025, 17:20Dark Matter and Its DetectionOral
The QCD axion is a well-motivated hypothetical particle that simultaneously addresses the strong CP problem and constitutes a compelling cold dark matter candidate. The MADMAX experiment (Magnetized Disk and Mirror Axion Experiment) is designed to search for axions in the mass range of 40โ400โฏฮผeV by boosting the microwave radiation in the range of 10-100 GHz induced by the inverse Primakoff...
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Valentyna Mokina26/08/2025, 17:40Dark Matter and Its DetectionOral
Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) is a direct detection dark matter (DM) search experiment located at the Laboratori Nazionali del Gran Sasso in Italy. Utilizing cryogenic and scintillating crystals, CRESST searches for nuclear recoils from DM particles, and has repeatedly achieved threshold below 100 eV across a variety of target materials. However, at...
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Mr Chang-Hao Fang (Sichuan University)26/08/2025, 18:00Dark Matter and Its DetectionOral
Nuclear recoil ionization yield constitutes a critical uncertainty source in low-energy detection for dark matter (DM) and coherent elastic neutrino-nucleus scattering (CEvNS) experiments. We present a novel methodology employing molecular dynamics simulations to assess ionization yields in crystalline semiconductor detectors. This non-parameterized approach resolving inherent limitations of...
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Nora Valtonen-Mattila (Ruhr Universitรคt Bochum)27/08/2025, 14:00Dark Matter and Its DetectionOral
We present a novel framework to estimate the sensitivity and discovery potential of IceCube to axion-like particles (ALPs) produced in core-collapse supernovae (CCSNe), covering ALP masses from 1 MeV to several hundred MeV. A key feature of this work is the explicit handling of the final-state leptons produced in ALP interactions with 16O nuclei and protons, which can generate Cherenkov light...
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Masayuki Wada (Astrocent, CAMK PAN)27/08/2025, 14:00Dark Matter and Its DetectionOral
Liquid argon, with its relatively light atomic mass and low energy
threshold in the ionisation channel, has proven to be a promising
target medium for the direct detection of dark matter candidates with
masses below 10 GeV/cยฒ.The Global Argon Dark Matter Collaboration (GADMC) is currently
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constructing the DarkSide-20k detector, which is primarily focused on
high mass WIMP detection.... -
Matteo Folcarelli (Sapienza University of Rome)27/08/2025, 14:20Dark Matter and Its DetectionOral
BULLKID-DM is a novel experiment designed for the direct searches of particle dark matter candidates with mass around 1 GeV, or below, and cross-section with nucleons smaller than $10^{-41}$ cm$^2$.
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The detector consists of a stack of diced silicon wafers, acting as arrays of particle absorbers, sensed by multiplexed Kinetic Inductance Detectors (KIDs). The target will amount to 800 g... -
Tomohiro Inada (Kyushu University)27/08/2025, 14:40Dark Matter and Its DetectionOral
Dark Matter (DM) remains one of the most profound mysteries in modern physics. Among the many proposed candidates, Weakly Interacting Massive Particles (WIMPs) stand out due to their strong theoretical motivation and testable implications. A definitive detection of monoenergetic gamma-ray lines from WIMP annihilation would provide a direct probe of electroweak-scale interactions, offering a...
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andrea Melchiorre (LNGS)27/08/2025, 15:00Dark Matter and Its DetectionOral
The DAREDEVIL (DARk-mattEr-DEVIces-for-Low-energy-detection) is a new project aiming to develop a novel class of detectors to study Dark Matter candidates with mass below 1 GeV/cยฒ. The detection channel is DM-electron scattering, where the excitation energies of the electrons should be matched to the transferred momenta. The only materials with energy gaps of eV or below are special...
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Shanglin Li (ไธญๅฝ็งๅญฆ้ข้ซ่ฝ็ฉ็็ ็ฉถๆ)27/08/2025, 15:00Dark Matter and Its DetectionOral
The electron and positron fluxes measured by the Alpha Magnetic Spectrometer (AMS) exhibited complex energy dependencies. In the entire energy range the positron flux is well described by the sum of a power-law term associated with the positrons produced in the collision of cosmic rays, which dominates at low energies, and a new source term of positrons, which dominates at high energies. This...
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Prof. Mengjiao Xiao (Shanghai Jiao Tong University)27/08/2025, 15:20Dark Matter and Its DetectionOral
The General Antiparticle Spectrometer (GAPS) is a balloon-borne experiment, firstly optimized to identify low-energy (โฒ 0.25 GeV/n) cosmic antinuclei from dark matter annihilation or decay. With a novel detection approach that uses the uniquely characterized atomic X-rays and charged particles from the decay of exotic atoms, the GAPS program will deliver an unprecedented sensitivity to...
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Hyunsu Lee (Institute for Basic Science)27/08/2025, 15:20Dark Matter and Its DetectionOral
The NEON experiment, located 23.7 meters from the Hanbit nuclear reactor core in Korea, offers a powerful platform to explore dark sector particles using the intense MeV-scale photon flux from a commercial reactor. In this talk, we present results from searches for axion-like particles (ALPs) and light dark matter (LDM) using 1.2 years of data collected with six NaI(Tl) scintillation...
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Doohyeok Lee27/08/2025, 16:00Dark Matter and Its DetectionOral
COSINE-100, a direct dark matter search experiment, operated from October 2016 to March 2023 at the Yangyang Underground Laboratory, Korea, using 106 kg of low-background NaI(Tl) scintillating crystals. It is now being upgraded to COSINE-100U by relocating to the newly constructed Yemilab in Jeongseon, Korea. In the upgraded version, a novel encapsulation process has been applied to the...
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Shenyang Shi (Columbia University)27/08/2025, 16:00Dark Matter and Its DetectionOral
The primary goal of the XENONnT experiment is the direct detection of Weakly Interacting Massive Particles (WIMPs), with a projected sensitivity improvement of an order of magnitude over XENON1T. In this talk, I will present recent results from the search for light dark matter using both scintillation-ionization and ionization-only channels with lowered detection threshold. These complementary...
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Maria Martinez (CAPA-Universidad de Zaragoza)27/08/2025, 16:20Dark Matter and Its DetectionOral
NaI(Tl) is a highly interesting target for dark matter searches due to its high light yield, which enables low energy thresholds, the combination of heavy and light nuclei, and the 100% presence of isotopes with nuclear spin and an unpaired proton. Moreover, it is the target material of the only experiment to date that has reported a positive signal (DAMA/LIBRA), and an ultra-low energy...
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Dr Shuaijie Li (Shanghai Jiao Tong University)27/08/2025, 16:20Dark Matter and Its DetectionOral
The PandaX-4T experiment has achieved significant progress in ultra-low energy regions. Here, we present the first search for dark photon signals in the 0.1 - 1 keV energy range, previously unexplored by PandaX-4T. Using Run0+Run1 S2-only data, we set competitive constraints on the kinetic mixing parameter for dark photon masses in the range of 0.1 - 1 keV. This analysis extends the detection...
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Dr Manoj Kumar Singh (Institute of Physics, Academia Sinica, Taipei, 115201, Taiwan)27/08/2025, 16:40Dark Matter and Its DetectionOral
The DAMA/LIBRA (DL) experiment remains the only direct detection effort reporting a positive annual modulation (AM) signal attributed to WIMP-nucleus ($\chi$N) interactions, despite several decades of intensive searches in the dark matter sector [1, 2]. In recent years, several analyses employing both time-integrated and AM approaches have placed significant constraints on, and in many cases...
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YONGHENG XU (Universitetet i Oslo/UCLA)27/08/2025, 16:40Dark Matter and Its DetectionOral
LUX-ZEPLIN (LZ) is a direct detection dark matter experiment located at the Sanford underground research facility in Lead, South Dakota, USA. LZ utilizes a dual-phase time projection chamber containing 7 tonnes of active xenon surrounded by veto systems to search for signals induced by WIMP dark matter candidates. Recently, the experiment announced world-leading WIMP results achieved over 280...
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Davide D'Angelo (Univerisitร degli Studi di Milano e INFN)27/08/2025, 17:00Dark Matter and Its DetectionOral
One of the most exciting quests in fundamental physics is the search for dark matter, which continues to see growing worldwide efforts across several theories and experimental techniques. Among these, NaI(Tl) scintillating crystals stand out, as they are used to observe the direct interaction of dark matter particles via nuclear recoils of a few keV. A long-lasting, but so far unconfirmed,...
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Tao Li (Shanghai Jiao Tong University)27/08/2025, 17:00Dark Matter and Its DetectionOral
Axion-like 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 constructed to search for possible mono-energetic peaks induced by the absorption processes between ALPs/DPs and atomic electrons of xenon. A detailed temporal...
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Sedong Park (Kyungpook National University)27/08/2025, 17:20Dark Matter and Its DetectionOral
The KIMS experiment previously used CsI(Tl) crystals for dark matter searches, employing pulse shape discrimination (PSD) to distinguish nuclear recoil signals from electron recoil backgrounds. However, the sensitivity was limited by a relatively low light yield of approximately 5 photoelectrons (PE) per keV, mainly due to the low quantum efficiency of conventional PMTs in the green emission...
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xiaopeng Zhou (Beihang University)27/08/2025, 17:20Dark Matter and Its DetectionOral
PandaX-4T, a large-scale liquid xenon detector operating at the China Jinping Underground Laboratory, features ultra-low background, high sensitivity, and excellent energy resolution, making it a powerful platform for probing physics beyond the Standard Model. In this talk, I will present our latest results on the search for axions and axion-like particles (ALPs), including solar axions,...
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Chris Tunnell (Rice University)27/08/2025, 17:40Dark Matter and Its DetectionOral
We performed the first search for ultralight dark matter using a magnetically levitated particle. A sub-millimeter permanent magnet was levitated in a superconducting found with a measured force sensitivity of 0.2 fN/$\sqrt{\text{Hโขz}}$. We find no evidence of a signal and derive limits on dark matter coupled to the difference between baryon and lepton number, BโL, in the mass range...
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Wonkyung Kim (University of Science & Technology (UST), IBS School)27/08/2025, 17:40Dark Matter and Its DetectionOral
Undoped CsI crystals are promising target materials for dark matter detection due to their high scintillation light yield at cryogenic temperatures. At liquid nitrogen temperature (~77 K), they emit more than 80,000 photons/MeV, making them suitable for detecting low-energy nuclear recoils. In this study, we investigated the scintillation properties of an undoped CsI crystal coupled with two...
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Wei Ji (Peking University)27/08/2025, 18:00Dark Matter and Its DetectionOral
In this talk, I will focus on is the levitated ferromagnetic spin sensor, which offers significant advantages due to its weak coupling with the environment, enabling superior noise isolation[1][2]. Additionally, the strong spin correlation within the ferromagnetic sensor provides promising noise suppression and signal enhancement capabilities, particularly in experiments probing the...
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Renmingjie Li (ๅๅทๅคงๅญฆ)27/08/2025, 18:00Dark Matter and Its DetectionOral
The p-type point-contact high-purity germanium detector is a critical tool for rare-event searches, including direct dark matter detection, coherent elastic neutrino-nucleus scattering, and neutrinoless double-beta decay, owing to its ultralow detection threshold, ultralow intrinsic background, and excellent energy resolution.
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In the CDEX-1B detector, we observed anomalous bulk events with an... -
Difan Yi (ไธญๅฝ็งๅญฆ้ขๅคงๅญฆ)28/08/2025, 14:00Dark Matter and Its DetectionOral
The Migdal effect, a phenomenon in which a nucleus emits an electron following a perturbation, is considered one of the most sensitive methods for detecting sub-GeV dark matter to date. However, for over 80 years, direct observational evidence has been lacking. This presentation will showcase the gas pixel detector we designed for the direct observation of the Migdal effect, along with the...
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Luciano Pandola (INFN Laboratori Nazionali del Sud)28/08/2025, 14:20Dark Matter and Its DetectionOral
The Recoil Directionality project (ReD) within the Global Argon Dark Matter Collaboration characterized the response of a liquid argon (LAr) dual-phase Time Projection Chamber (TPC) to neutron-induced nuclear recoils, to measure the charge yield Qy at low-energy. The charge yield is a critical parameter for the experiments searching for dark matter in the form of low-mass WIMPs and...
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195. Determination of the sensitivity of the DEAP-3600 experiment to supermassive charged gravitinosMichal Olszewski (AstroCENT)28/08/2025, 14:40Dark Matter and Its DetectionOral
Current experiments have not yet led to the discovery of dark matter with particle masses of the order of eV (for axion dark matter) up to the TeV scale (for WIMPs). An unconventional idea is gaining popularity that dark matter may consist at least in part of a rarefied gas of stable gravitinos with masses of the order of the Planck mass and fractional charge. These particles would interact...
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CHIH-PAN WU (National Dong Hwa University)28/08/2025, 15:00Dark Matter and Its DetectionOral
Electronic recoil caused by solar neutrinos in multi-ton xenon detectors is a powerful probe of solar physics, and an important background for direct searches of dark matter and double beta decay. Following our previous work [1], we extend our study of recoil energy up to 150 keV, with an improved relativistic random phase approximation (RRPA) and calculations of bound-to-free transitions...
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Miguel Hernandez28/08/2025, 15:20Dark Matter and Its DetectionOral
We report the first observation of the positron emission process, $^{125}\text{Xe}\rightarrow e^+ + \nu + ^{125}\text{I}$ (Q=$1.6~\mathrm{MeV}$), in a noble liquid detector using post-calibration data from the LUX-ZEPLIN (LZ) detector. We detect this decay and provide an independent measurement of the branching fraction. $^{125}\text{Xe}$ is a short-lived ($\tau_{1/2}\sim 17~\mathrm{h}$)...
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Ms Greeshma Chandrabhanu (Institute of Physics, Academia Sinica, Taipei 11529, Taiwan & Department of Physics, Central University of South Bihar, Gaya 824236, India.)28/08/2025, 16:00Dark Matter and Its DetectionOral
Axion-like particles (ALPs) have emerged as a compelling portal to the dark sector, offering unique experimental signatures through their coupling to photons. In recent years there has been remarkable progress in the physics of axions and ALPs in several directions. In this work, we investigate the feasibility of detecting dark matter ALPs via inverse Primakoff (IP) scattering process, where...
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Ziqing Hong (University of Toronto)28/08/2025, 16:20Dark Matter and Its DetectionOral
Cryogenic technologies are used for a variety of applications in particle, nuclear and quantum physics. The Cryogenic Underground TEst facility (CUTE) at SNOLAB provides a low background, vibration-isolated environment for testing and operating these devices. The experimental stage of CUTE can reach a base temperature of 12 milliKelvin, and can hold a payload up to 20 kg. Over the past years...
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Suerfu Burkhant (High Energy Accelerator Research Organization (KEK))28/08/2025, 16:40Dark Matter and Its DetectionOral
Recently, there has been an increasing interest in searching for low-mass dark matter. To address this new direction, a new experimental setup for low-mass dark matter searches is currently being commissioned at the Kamioka Underground Laboratory. A dilution refrigerator has been installed underground, and gamma and neutron shielding is under construction. Ambient gamma and neutron levels have...
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Ako Jamil (Princeton University)28/08/2025, 17:00Dark Matter and Its DetectionOral
The DarkSide-20k experiment represents the latest phase of the Global Argon Dark Matter Collaboration, leveraging expertise from previous argon-based detectors. This effort is focused on constructing a dual-phase liquid argon time projection chamber (LAr-TPC) that will deploy 100 tonnes of underground argon outfitted with silicon photomultiplier (SiPM) arrays for precise light detection....
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Junting Huang (Shanghai Jiao Tong University)28/08/2025, 17:20Dark Matter and Its DetectionOral
PandaX is a dark matter and neutrino experiment based at the China Jinping Underground Laboratory. It employs a dual-phase liquid xenon TPC to search for dark matter particles and study neutrinoless double-beta decay. Neutron and gamma background events in these searches can be mitigated using an external veto detector. This presentation will provide an update on the operational status of the...
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Roberto Santorelli (CIEMAT)28/08/2025, 17:40Dark Matter and Its DetectionOral
We present recent advances in the spectroscopic characterization of scintillation and electroluminescence (EL) light in gaseous argon. A detailed investigation was conducted using a wavelength-sensitive time projection chamber to study light emission in two spectral regions: the well-known second continuum at 128 nm, and a broader, softer component spanning the far and mid-ultraviolet range...
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Shengchao Li (่ฅฟๆนๅคงๅญฆ Westlake University)28/08/2025, 18:00Dark Matter and Its DetectionOral
Characterizing low-energy, keV-range nuclear recoils near the detector threshold is a crucial recipe for the recent highlights from the XENONnT experiment โ for accurately measuring the solar Boron-8 neutrino via coherent elastic neutrino-nucleus scattering (CEvNS) and searching for light dark matter particles. In this talk, we will present the first calibration campaign using an...
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Josep Maria Batllori Berenguer (University of Hamburg)Dark Matter and Its DetectionOral
"WISPFI (WISP Searches on a Fiber Interferometer) is a novel table-top experiment designed to detect photon-axion conversion using resonant mixing. The experiment employs hollow-core photonic crystal fibers (HC-PCF) to fulfill the resonant condition, which can be precisely tuned by adjusting the gas pressure within the fiber. This technique enables the probing of an unexplored axion mass range...
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