Conveners
New Technologies: 1
- Mark Vagins
New Technologies: 2
- Mark Vagins
New Technologies: 3
- Eric Vazquez-Jauregui
New Technologies: 4
- Gabriel Orebi-Gann
A new type of particle detector which combines the advantages of liquid noble TPCs and superheated bubble chambers has been for the first time demonstrated with a 30-gram prototype scintillating liquid xenon bubble chamber operated at Northwestern University. The new technology has the potential, which is the aim of current ongoing work, to be virtually only sensitive to nuclear recoils at...
Weakly Interactive Massive Particles (WIMPs) are among the most favored Dark Matter candidates.
As the Solar System moves through Dark Matter halo, the WIMPs may scatter on the nuclei in the
Sun/Earth, lose energy, and get trapped by their gravitational potentials. Their capture and subsequent
annihilations in the core of the Sun/Earth may subsequently give rise to neutrinos, through various...
The Axion is a hypothetical low-mass boson predicted by the Peccei-Quinn mechanism solving the strong CP problem. It is naturally also a cold dark matter candidate, thus, simultaneously solving two major problems of nature. All existing experimental efforts to detect QCD axions focus on a range of axion masses below 20 ueV. The mass range above ~40ueV, preferred by models in which the...
WISPy Dark Matter candidates have increasingly come under focus of scientific interest. In particular the QCD Axion might also be able to solve other fundamental problems such as strong CP-violation and could be responsible for inflation and structure formation in the early universe. Galactic Axions, Axion-Like-Particels and Hidden Photons can be converted to photons employing a surface...
The COSINUS (Cryogenic Observatory for SIgnals seen in Next-generation Underground Searches) was brought to life to give new insight to the long-standing dark matter claim of the DAMA/LIBRA experiment. To be immune to potential target-material dependencies also COSINUS, as DAMA-LIBRA, uses NaI as target material. Our detectors are cryogenic calorimeters with phonon-light-readout - unique in...
Looking for low-mass WIMPs (<10 GeV) which could be pervading the galactic dark halo requires the use of light elements as target and detectors with very low energy threshold. The TREX-DM (TPC Rare Event eXperiment for Dark Matter) experiment is conceived to fulfil these requirements by means of a gas time projection chamber (TPC) equipped with novel micromesh gas structures (Micromegas)...
The PICO-60 experiment searches for dark matter using superheated liquid C$_3$F$_8$. The experiment is located at SNOLAB and is designed to be sensitive to spin-carrying dark matter particles. The PICO bubble chamber is a threshold detector that can be operated to be insensitive to minimally ionizing particles. Acoustic information is used to discriminate between nuclear recoil events and...
The ability to detect or "tag" the 136Ba daughter of 136Xe double beta decay in the nEXO liquid xenon TPC has the potential to eliminate essentially all background in the a second phase of nEXO operation. Several promising techniques for barium tagging are being developed within the nEXO collaboration. These include capturing the single 136Ba ion/atom in solid xenon on a cryogenic probe and...
The PandaX-III project at China Jinping Underground Laboratory (CJPL) will search for neutrinoless double beta decay of Xe-136 with high pressure xenon gas Time Projection Chambers (TPC). PandaX-III exploits the tracking capability of gaseous TPC to effectively identify possible signal and suppress background. The first TPC will contain 200 kg of enriched xenon at 10 bar and will be equipped...
The goal of the Advanced Mo-based Rare process Experiment (AMoRE) is to search for neutrinoless double beta decay of $^{100}$Mo using low-temperature detectors consisting of Mo-based scintillating crystals and sensors based on metallic magnetic calorimeters (MMCs). The detector system operates at millikelvin temperatures, which are reached using a dilution refrigerator, and performs...
High pressure gaseous Time Projection Chamber (TPC) provides a unique
combination of excellent energy resolution, event tracking for
background discrimination, and scalability, which are ideal for
neutrinoless double-beta decay searches. To harness the power of such
a TPC, a suitable charge readout scheme has to be realized. We are
developing a pixelated charge readout plane filled with an...
The nEXO collaboration is developing a low-background detector to search for neutrinoless double beta decays in 5 tonnes of liquid xenon enriched in the isotope Xe-136. The detector concept is based on the success of the EXO-200 detector. However, the more than 20-fold increase in xenon mass would benefit greatly from the development of new technologies to record 175 nm scintillation light and...
A liquid scintillator containing a tetrakis (isopropyl acetoacetato) zirconium (Zr(iprac)4) has been developed for new project of neutrinoless double beta decay search using Zr-96 isotope, which is called ZICOS experiment. The liquid scintillator has 10 wt.% concentration of Zr(iprac)4, a light yield of 48.7+-7.1% for BC505, and an energy resolution of 4.1+-0.6% at 3.35 MeV assuming 40%...
Massive neutrinos demand to ask whether they are Dirac or Majorana particles.
Majorana neutrinos are an irrefutable proof of physics beyond the Standard Model.
Neutrinoless Double Electron Capture is not a process but a virtual $\Delta L = 2$ Mixing
between a parent $^AZ$ atom and a daughter $^A(Z-2)$ excited atom with two electron holes.
As a mixing between two neutral atoms and the...
Large area and low background experiments such as nEXO (next Enriched Xenon Observatory, a proposed 5 tonne-scale detector) are looking for new and innovative ways to improve the sensitivity of their detectors. Installing the photodetectors and their electronic readout directly in the detector active medium is among promising approaches. In turn, this introduces new constraints on the...
Active background rejection can be achieved in next generation bolometric experiments for rare event searches by detecting the light (scintillation or Cherenkov) that follows an energy deposition.
The CALDER (Cryogenic wide-Area Light Detectors with Excellent Resolution) project is part of the R&D activities under development for the upgrade of the CUORE experiment, a ton-scale neutrinoless...
Neutrino and astroparticle physics experiments involving detection of rare and weak interactions, like GERDA, MAJORANA, TEXONO, CDEX , CoGeNT have driven the development of large mass ultra low noise detectors.
With respect to other solid-state materials, germanium presents major advantages for high-sensitivity γ-ray detection. Its excellent electrical properties (lowest band gap and good...
This presentation will provide a review of past and current techniques used to load metals in organic liquid scintillator. Both the techniques and their applications will be discussed.
SHIP is a new general purpose fixed target facility, whose Technical Proposal has been recently reviewed by the CERN SPS Committee and by the CERN Research Board. The two boards recommended that the experiment proceeds further to a Comprehensive Design phase in the context of the new CERN Working group "Physics Beyond Colliders", aiming at presenting a CERN strategy for the European Strategy...
After more than 20 years of data taking and analysis, Super-Kamiokande (SK) will undergo a major upgrade through the addition of 0.2% gadolinium sulfate by mass to its ultra-pure water. This will allow the efficient detection of neutrons, giving access to new physics signals while improving sensitivity to existing ones.
While this upgrade promises many improvements, there were several...
By reconstructing the arrival position and time of photons produced in
water or liquid scintillator on highly segmented fast photo-detectors one can
reconstruct tracks by using the `drift time' of photons, much as one does
with electrons in a Time Projection Chamber. I will present recent advances in event reconstruction techniques that are being developed in the context of a recently proposed...
The Micro-X sounding rocket uses a Transition Edge Sensor (TES) array to make X-ray observations. The improved energy resolution of TESs compared to traditional space-based X-ray detectors brings new precision to both supernova remnant observations and the X-ray search for sterile neutrino dark matter. Current X-ray observations disagree over the potential presence of a 3.5 keV X-ray line...
The HOLMES project aims to directly measure the electron neutrino mass using the electron capture decay (EC) of 163Ho down to the eV scale. It will perform a precise measurement of the end-point of the 163Ho calorimetric energy spectrum to search for the deformation caused by a finite electron neutrino mass. The choice of 163Ho as source is driven by the very low Q-value of the EC reaction...
The newly established CONUS ($\bf CO$herent $\bf N$e$\bf U$trino Nucleus $\bf S$cattering) project by the Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, will be presented. The project aims at detecting coherent elastic neutrino nucleus scattering (CE$\nu$NS) with high-purity Germanium (Ge) detectors with an extremely low threshold, surrounded by an elaborated shield and exposed to a...
The Project 8 collaboration aims to measure the absolute neutrino mass scale using cyclotron radiation emission spectroscopy on the beta decays of tritium. The second phase of the project will measure a continuous spectrum of molecular tritium beta decays and extract the tritium endpoint value with an eV or sub-eV scale precision. Monoenergetic electrons emitted by gaseous $^{83\mathrm{m}}$Kr...
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) has two main goals: (1) a precision measurement of final state neutron multiplicity in neutrino interactions as a function of momentum transfer in the range of 0.5-1.5 GeV, and (2) first deployment and performance characterization of Large Area Picosecond Photo Detectors (LAPPDs) for use in future neutrino experiments. ANNIE Phase...
Theia is a proposed multipurpose 50kT water-based liquid scintillator (WbLS) detector that aims to use the latest high precision photodetectors. WbLS is a novel scintillation medium that combines the high light yield and low-energy threshold properties of liquid scintillation, with the directionality and low attenuation length of water. This talk will discuss the principles of WbLS, ongoing...
The emission of antineutrinos from fission products in nuclear reactors offers a path to discover, monitor, or exclude the existence of reactors at distances of tens to hundreds of kilometers. The WATCHMAN (WATer Cherenkov Monitor of AntiNeutrinos) experiment is a proposed kiloton volume gadolinium-doped water Cherenkov detector designed to demonstrate this capability. Antineutrinos are...
