Conveners
Dark matter and Neutrino: inter-track parallel session 1
- Marco Vignati (Sapienza University and INFN Roma)
Dark matter and Neutrino: inter-track parallel session 2
- Christoph Wiesinger (Technical University of Munich)
Dark matter and Neutrino: inter-track parallel session 3
- Robert Breier (Comenius University (SK))
The coherent elastic scattering of solar, diffuse supernova and atmospheric neutrinos on nuclei (CEνNS) represents the ultimate background for weakly-interacting massive particle (WIMP) detection in the GeV mass region. With the first detection of CEνNS only five years ago, these neutrinos represent a signal in themselves. Solar $^{8}\text{B}$ neutrinos are expected to be observed by the...
The XENON collaboration primarily focuses on detecting the first direct evidence for the existence of Dark Matter (DM) in the Universe using xenon double-phase time projection chamber detectors. The latest iteration of XENON experiments, XENONnT, is currently accumulating scientific data at the LNGS underground laboratory in Italy with a target mass of 5.9 tonnes of liquid xenon. The...
The PandaX-4T experiment, located at the China Jinping Underground Laboratory, is currently running a dual-phase xenon time projection chamber with 3.7 tonne of liquid xenon target. Benefitting from the 2400-meter overburden and the careful selection of detector materials, the PandaX-4T experiment has achieved an extremely low background level. Although originally designed as a dark matter...
Detectors based on Liquid Argon or Xenon Time Projection Chambers have been successfully employed in several neutrino and DM experiments.
We propose an alternative method of exploiting the same targets, based on the imaging of their scintillation light, eliminating the dependency on the slow charge collection.
By capturing "pictures" of the LAr (or LXe) scintillation light emission, we aim...
A future liquid xenon TPC of the scale of many tens of tonnes, capable of detecting the atmospheric 'neutrino fog', will have sensitivity to multiple physics signals besides WIMP dark matter. Here we will discuss the opportunities for neutrino physics, including neutrino-less double beta-decay with $^{136}$Xe and double electron capture measurements of $^{124}$Xe, as well as astrophysical...
In this seminar, I will explore the potential for uncovering new neutrino physics through the use of dark matter direct detection experiments and its complementarity with spallation source experiments. In particular, I will analyse the Sterile Baryonic Neutrino Model, an extension of the SM in which we add a sterile massive neutrino. I will show how the sterile neutrino can be generated...
In 2021, the MAJORANA DEMONSTRATOR experiment ended its search for neutrinoless double beta decay $^{76}$Ge. Shown to be one of the world-leading ultra-low-background facilities we modified the experiment to search for one of the rarest isotope decays. The isotope $^{180m}$Ta is the only known isotope in nature that occurs in an isomeric state instead of the ground state. The isomeric decay is...
In the ECHo experiment large arrays of low temperature metallic magnetic calorimeters enclosing $^{163}$Ho are used for the high resolution measurement of the electron capture spectrum. The goal of the experiment is to achieve the sensitivity to detect an extremely small spectral shape distortion in the end point region due to an effective electron neutrino mass smaller than 1 eV/c$^2$.
The...
CaWO$_4$ and Al$_2$O$_3$ are well-known target materials for cryogenic detectors deployed in experiments searching for rare events like coherent elastic neutrino-nucleus scattering (CE$\nu$NS) with NUCLEUS or hypothetical dark matter-nucleus scattering with CRESST. With detection thresholds in the sub-keV range, these experiments need verified and reliable simulations of background components...
The main objective of the Scintillating Bubble Chamber (SBC) collaboration is to detect 1-10GeV dark matter by combining the electron recoil suppression of conventional bubble chambers with the scintillation properties of liquid noble elements. The use of noble elements provides two benefits. First, the potential to reduce the energy threshold to 100eV by efficiently converting most of the...
We investigate a novel way of probing light dark matter boosted by supernova neutrinos incorporating the time-of-flight (TOF) information. The DM mass mχ < O(10 MeV) can be boosted to relativistic speed and surpasses the detector energy threshold, eg. Super-K/Hyper-K/DUNE. The additional TOF manifests the direct mχ measurement and is irrelevant to the DM-ν cross...
Many well motivated dark matter (DM) particle candidates can decay into detectable X-ray photons. We analyze eROSITA Final Equatorial Depth Survey (eFEDS) from eROSITA early release data to search for unexplained X-ray lines that could indicate DM signal. Having discovered no extra line, we set limits on DM decay rate in mass range between $2-18$\,keV, and constrain the parameter space of 3...
The Short-Baseline Near Detector (SBND) is a 112-ton liquid argon time projection chamber (LArTPC) detector located 110-meters downstream the Booster Neutrino Beam target at Fermilab. As the near detector of the Short-Baseline Neutrino Program, SBND is especially sensitive to any new particles produced in the beam. In addition to the excellent spatial and energy resolution of the LArTPC...
The exquisite capabilities of liquid Argon Time Projection Chambers make them ideal to search for weakly interacting particles in Beyond the Standard Model scenarios. Given their location at CERN the ProtoDUNE detectors may be exposed to a flux of such particles, produced in the collisions of 400 GeV protons (extracted from the Super Proton Synchrotron accelerator) on a target. Here we point...
The nature of Dark Matter is an ongoing and relevant object of study in astroparticle physics. Despite our best efforts to identify its possible particle properties, the results have been null, which has led to a plethora of models describing viable connections to the Standard Model. In particular, loop models of Dark Matter, like the scotogenic model, have received attention in the last...
