A5053512954- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Muon and positron interactions and applications
- Gamma-ray bursts and supernovae
- Nuclear reactor physics and engineering
- Quantum Chromodynamics and Particle Interactions
- Electrostatic Discharge in Electronics
- Particle accelerators and beam dynamics
- Electromagnetic Compatibility and Noise Suppression
- Tropical and Extratropical Cyclones Research
- Nuclear and radioactivity studies
- Black Holes and Theoretical Physics
- Underwater Acoustics Research
- Medical Imaging Techniques and Applications
- International Science and Diplomacy
- Luminescence Properties of Advanced Materials
Canfranc Underground Laboratory
2015-2024
University of South Carolina
2004-2021
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2005-2021
Kurchatov Institute
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2021
Institute for Nuclear Research
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca
2021
The University of Tokyo
2020
Kavli Institute for the Physics and Mathematics of the Universe
2020
Institut de Recherche sur les Lois Fondamentales de l'Univers
2013-2014
The CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. array represents significant advancement this technology, and work we apply it for first time to high-sensitivity search lepton-number--violating process: $^{130}$Te neutrinoless double-beta decay. Examining total TeO$_2$ exposure of 86.3 kg$\cdot$yr, characterized by an effective energy resolution (7.7 $\pm$ 0.5) keV FWHM background region interest...
A detailed description of the CUORICINO $^{130}\mathrm{Te}$ neutrinoless double-beta $(0 \ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta})$ decay experiment is given and recent results are reported. an array 62 tellurium oxide (${\mathrm{TeO}}_{2}$) bolometers with active mass 40.7 kg. It cooled to $~8\text{\ensuremath{-}}10$ mK by a dilution refrigerator shielded from environmental radioactivity energetic neutrons. running in Laboratori Nazionali del Gran Sasso (LNGS) Assergi, Italy....
Abstract Core-collapse supernovae are among the most magnificent events in observable universe. They produce many of chemical elements necessary for life to exist and their remnants—neutron stars black holes—are interesting astrophysical objects own right. However, despite millennia observations almost a century study, explosion mechanism core-collapse is not yet well understood. Hyper-Kamiokande next-generation neutrino detector that will be able observe flux from next galactic supernova...
The first results are reported on the limit for neutrinoless double decay of 130Te obtained with new bolometric experiment CUORICINO. set-up consists 44 cubic crystals natural TeO2, 5 cm side and 18 3×3×6 cm3. Four these latter made isotopically enriched materials: two in 128Te others 130Te. With a sensitive mass ∼40 kg, our array is by far most massive running cryogenic detector to search rare events. operated at temperature ∼10 mK dilution refrigerator under heavy shield Gran Sasso...
We report the present results of CUORICINO, a search for neutrinoless double-beta (0nu betabeta) decay 130Te. The detector is an array 62 TeO2 bolometers with total active mass 40.7 kg. cooled by dilution refrigerator shielded from environmental radioactivity and energetic neutrons, operated at approximately 8 mK in Gran Sasso Underground Laboratory. No evidence was found new lower limit, T(1/2)(0nu) > or = 1.8 x 10(24) yr (90% C.L.) set, corresponding to [m(nu)] < 0.2 1.1 eV, depending on...
The next generation neutrino observatory proposed by the LBNO collaboration will address fundamental questions in particle and astroparticle physics. experiment consists of a far detector, its first stage 20 kt LAr double phase TPC magnetised iron calorimeter, situated at 2300 km from CERN near detector based on highpressure argon gas TPC. long baseline provides unique opportunity to study flavour oscillations over their 1st 2nd oscillation maxima exploring L/E behaviour, distinguishing...
Used for both proton decay searches and neutrino physics, large water Cherenkov (WC) detectors have been very successful tools in particle physics. They are notable their masses charged detection capabilities. While current WC reconstruct tracks over a wide energy range, they cannot efficiently detect neutrons. Gadolinium (Gd) has the largest thermal neutron capture cross section of all stable nuclei produces an 8 MeV gamma cascade that can be detected with high efficiency. Because many new...
The Neutrino Experiment with a Xenon TPC (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires severe suppression potential backgrounds. An extensive screening and material selection process underway for NEXT since control radiopurity levels materials be used in experimental set-up must rare event searches. First measurements based on Glow Discharge Mass Spectrometry gamma-ray spectroscopy using ultra-low background germanium detectors at Laboratorio...
The Neutrino Experiment with a Xenon Time-Projection Chamber (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires severe suppression potential backgrounds; therefore, an extensive screening and selection process underway control radiopurity levels materials be used in experimental set-up NEXT. detector design combines measurement topological signature event for background discrimination energy resolution optimization. Separate tracking readout planes...
A bstract Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation the only viable method that can establish Majorana nature of neutrinos, providing at same time sensitive inclusive test lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims developing and testing new bolometric technology to be applied future large-scale experiments searching for neutrinoless promising nuclei 100 Mo 130 Te. The limiting...
A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at Canfranc underground laboratory Spain. The dual-readout detector is prototype of technology that will be used next-generation $0\nu2\beta$ experiment CUPID. measurements were performed 18 12 mK temperature pulse tube dilution refrigerator. This setup utilizes same as CUORE cryostat host CUPID so represents an...
The Laboratorio Subterráneo de Canfranc (LSC) is the Spanish national hub for low radioactivity techniques and associated scientific technological applications. concentration of airborne radon a major component radioactive budget in neighborhood detectors. LSC hosts Radon Abatement System, which delivers suppressed air with 1.1±0.2 mBq/m3 222Rn. content continuously monitored an Electrostatic Monitor. Measurements double beta decay demonstrators NEXT-NEW CROSS gamma HPGe detectors show...
We report on the development of scintillating bolometers based lithium molybdate crystals that contain molybdenum has depleted into double-β active isotope 100Mo (Li2100deplMoO4). used two Li2100deplMoO4 cubic samples, each which consisted 45-millimeter sides and had a mass 0.28 kg; these samples were produced following purification crystallization protocols developed for search experiments with 100Mo-enriched Li2MoO4 crystals. Bolometric Ge detectors utilized to register scintillation...
Residual flux and angular distribution of high-energy cosmic muons have been measured in two underground locations at the Canfranc Underground Laboratory (LSC) using a dedicated Muon Monitor. The instrument consists three layers fast scintillation detector modules operating as 352 independent pixels. monitor has flux-defining area $$1~\hbox {m}^{2}$$ covers all azimuth angles, zenith angles up to $$80^{\circ }$$ . integrated muon is $$(5.26 \pm 0.21) \times 10^{-3}~\hbox {m}^{-2}\hbox...
Random coincidences of events could be one the main sources background in search for neutrino-less double-beta decay $^{100}$Mo with macro-bolometers, due to their modest time resolution. Scintillating bolometers as those based on Li$_2$MoO$_4$ crystals and employed CROSS CUPID experiments can eventually exploit coincident fast signal detected a light detector reduce this background. However, scintillation provides signal-to-noise ratio, making difficult pile-up pulse-shape recognition...
The next generation neutrino observatory proposed by the LBNO collaboration will address fundamental questions in particle and astroparticle physics. experiment consists of a far detector, its first stage 20 kt LAr double phase TPC magnetised iron calorimeter, situated at 2300 km from CERN near detector based on high-pressure argon gas TPC. long baseline provides unique opportunity to study flavour oscillations over their 1st 2nd oscillation maxima exploring $L/E$ behaviour, distinguishing...
The "Neutrino Experiment with a Xenon Time-Projection Chamber" (NEXT) experiment intends to investigate the neutrinoless double beta decay of 136Xe, and therefore requires severe suppression potential backgrounds. An extensive material screening selection process was undertaken quantify radioactivity materials used in experiment. Separate energy tracking readout planes using different sensors allow us combine measurement topological signature event for background discrimination resolution...
Abstract This paper reports the development and detailed properties of about 13 metric tons gadolinium sulfate octahydrate, $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$, which has been dissolved into Super-Kamiokande (SK) in summer 2020. We evaluate impact radioactive impurities 8H_2O$ on diffuse supernova neutrino background searches solar observation confirm need to reduce fluorescent by three orders magnitude from commercially available high-purity 8H_2O$. In order produce ultra-high-purity we...
An array of twelve 0.28 kg lithium molybdate (LMO) low-temperature bolometers equipped with 16 bolometric Ge light detectors, aiming at optimization detector structure for CROSS and CUPID double-beta decay experiments, was constructed tested in a low-background pulse-tube-based cryostat the Canfranc underground laboratory Spain. Performance scintillating studied depending on size phonon NTD-Ge sensors glued to both LMO absorbers, shape detectors (circular vs. square, from two suppliers),...
Abstract In preparation for the CROSS experiment to search double-beta (2β) decay of 100 Mo, we upgraded a low-background facility at Canfranc underground laboratory (Spain) by installing magnetic damping-based detector suspension inside pulse-tube cryostat. We tested in low-temperature (15 mK) measurements with two scintillating bolometers made large-volume crystals 116 CdWO 4 (reference set-up) and Li 2 MoO (R&D CLYMENE project view CUPID 2β experiment), each coupled thin Ge bolometric...