A5030207392- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Planetary Science and Exploration
- Atomic and Subatomic Physics Research
- Nuclear reactor physics and engineering
- Particle accelerators and beam dynamics
- Radio Astronomy Observations and Technology
- Geophysical Methods and Applications
- Cosmology and Gravitation Theories
- Geophysical and Geoelectrical Methods
- Earthquake Detection and Analysis
- Theoretical and Computational Physics
- Global Energy and Sustainability Research
- Pulsars and Gravitational Waves Research
- Geomagnetism and Paleomagnetism Studies
- Linguistics and Cultural Studies
- Nuclear physics research studies
- Radioactive contamination and transfer
University of Jyväskylä
2015-2024
Pontifical Catholic University of Rio de Janeiro
2022-2024
Universidade Estadual de Londrina
2022-2024
A. Alikhanyan National Laboratory
2013-2024
Beijing Normal University
2022-2024
Université Libre de Bruxelles
2022-2024
China Institute of Atomic Energy
2024
China Academy of Space Technology
2024
Johannes Gutenberg University Mainz
2020-2023
Shanghai Jiao Tong University
2023
In June 2012, an Expression of Interest for a long-baseline experiment (LBNO) has been submitted to the CERN SPSC. LBNO considers three types neutrino detector technologies: double-phase liquid argon (LAr) TPC and magnetised iron as far detectors. For near detector, high-pressure gas embedded in calorimeter magnet is baseline design. A mandatory milestone concrete prototyping effort towards envisioned large-scale detectors, accompanying campaign measurements aimed at assessing associated...
A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for Deep Underground Neutrino Experiment (DUNE). The technology relies on amplification ionisation charge in ultra-pure vapour and offers several advantages compared to traditional single-phase TPCs. 4.2 tonne prototype, largest its kind, with an active volume \three has been constructed operated at CERN. In this paper we describe detail experimental setup components as well report operation experience. We...
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...
One of the main goals Long Baseline Neutrino Observatory (LBNO) is to study $L/E$ behaviour (spectral information) electron neutrino and antineutrino appearance probabilities, in order determine unknown CP-violation phase $δ_{CP}$ discover leptonic sector. The result based on measurement probabilities a broad range energies, covering t he 1st 2nd oscillation maxima, at very long baseline 2300 km. sensitivity experiment can be maximised by optimising energy spectra anti-neutrino fluxes. Such...
Unsegmented, large-volume liquid scintillator (LS) neutrino detectors have proven to be a key technology for low-energy physics. The efficient rejection of radionuclide background induced by cosmic muon interactions is paramount importance their success in high-precision MeV measurements. We present novel technique reconstruct GeV particle tracks LS, whose main property, the resolution topological features and changes differential energy loss $\mathrm{d}E/\mathrm{d}x$, allows improved...
The Serappis (SEarch for RAre PP-neutrinos In Scintillator) project aims at a precision measurement of the flux solar $pp$ neutrinos on few-percent level. Such will be relevant contribution to study neutrino oscillation parameters and sensitive test luminosity constraint. concept relies small organic liquid scintillator detector ($\sim$20 m$^3$) with excellent energy resolution ($\sim$2.5 % 1 MeV), low internal background sufficient shielding from surrounding radioactivity. This can achieved...
The feasibility of a next generation neutrino observatory in Europe is being considered within the LAGUNA design study. To accommodate giant detectors and shield them from cosmic rays, new very large underground infrastructure required. Seven potential candidate sites different parts at several distances CERN are studied: Boulby (UK), Canfranc (Spain), Fr\'ejus (France/Italy), Pyh\"asalmi (Finland), Polkowice-Sieroszowice (Poland), Slanic (Romania) Umbria (Italy). study aims comprehensive...
The proposed Long Baseline Neutrino Observatory (LBNO) initially consists of $\sim 20$ kton liquid double phase TPC complemented by a magnetised iron calorimeter, to be installed at the Pyhäsalmi mine, distance 2300 km from CERN. conventional neutrino beam is produced 400 GeV protons accelerated SPS accelerator delivering 700 kW power. long baseline provides unique opportunity study flavour oscillations over their 1st and 2nd oscillation maxima exploring $L/E$ behaviour, distinguishing...
LENA (Low Energy Neutrino Astronomy) is a proposed next-generation neutrino detector based on 50 kilotons of liquid scintillator. The low detection threshold, good energy resolution and excellent background rejection inherent to the liquid-scintillator detectors make versatile observatory for low-energy neutrinos from astrophysical terrestrial sources. In framework European LAGUNA-LBNO design study, also considered as far very-long baseline beam CERN Pyhäsalmi (Finland). present contribution...
The large next generation liquid-scintillator detector LENA (Low Energy Neutrino Astronomy) offers an excellent opportunity for neutrino oscillometry. characteristic spatial pattern of very low monoenergetic disappearance from artificial radioactive sources can be detected within the long length detector. Sufficiently strong more than 1 MCi activity produced at nuclear reactors. Oscillometry will provide a unique tool precise determination mixing parameters both active and sterile neutrinos...
The investigation of the oscillation pattern induced by sterile neutrinos might determine parameters, and at same time, allow to probe CPT symmetry in leptonic sector through neutrino–antineutrino mass inequality. We propose use a large scintillation detector like JUNO or LENA detect electron antineutrinos from MCi capture beta decay sources. Our calculations indicate that such an experiment is realistic could be performed parallel current research plans for RENO. Requiring least 5σ...
EMMA is a new experiment designed for cosmicray composition studies around the knee energy operating at shallow depth underground in Pyhäsalmi mine, Finland.The array has sufficient coverage and resolution to determine multiplicity, lateral density distribution arrival direction of high-energy muons on an event by basis.Preliminary results muon multiplicity extracted using one detector station are presented.
Abstract We report the results of analyses cosmic ray data collected with a 4 tonne (3×1×1 m 3 ) active mass (volume) Liquid Argon Time-Projection Chamber (TPC) operated in dual-phase mode. present detailed study TPC's response, its main detector parameters and performance. The are important for understanding further developments technology, thanks to verification key aspects, such as extraction electrons from liquid gas their amplification through entire one square metre readout plain, gain...
An approach to calculate the flux of cosmicgenic muons detected by Muon Monitor experiment in lab LAB2400 Underground Laboratory Canfranc (LSC) is described. The measuring apparatus consists three layers SC16 scintillation matrix detectors. hardware function detector assembly was determined using computer simulation. Obtained value total muon ux turned out be equal (4.35 ± 0.2) × 10−3 m−2s−1.
We summarize the evidence for DM-like anomalies in neutron multiplicity spectra collected underground with Pb targets by three independent experiments: NEMESIS (at 210 m.w.e.) NMDS 583 m.w.e.), and ZEPLIN-II 2850 m.w.e.). A new analysis shows small but persistent at high multiplicities. Adjusted differences detection efficiencies, positions of are consistent between systems. Also, intensities match when corrected acquisition time estimated efficiency. While measurements inconclusive analyzed...
Subterrestrial neutron spectra show weak but consistent anomalies at multiplicities ~100 and above. The origin of the excess events remains ambiguous, but, in principle, it could be a signature Dark Matter WIMP annihilation-like interaction with massive Pb target. However, since results available measurements are below 5-sigma discovery level, observed anomalous structures on significant muon-induced background, an independent verification even greater depth is needed. For that purpose, we...
We use the pullback trivialization technique to systematically construct gapped interfaces and anomalous boundaries for fermionic symmetry-protected topological (FSPT) states by extending their symmetry group $G_f = \mathbb{Z}_2^f \times_{\omega_2} G$ larger groups. These FSPT may involve decoration layers of both Majorana chains complex fermions. derive general consistency formulas explicitly (2+1)D (3+1)D systems, where nontrivial twists arise from symmetric local unitaries or "gauge...
A series of measurements has been started where the 14C concentration is determined from several liquid scintillator samples. dedicated setup designed and constructed with aim measuring concentrations smaller than 10−18. Measurements take place in two underground laboratories: Baksan Neutrino Observatory, Russia, new Callio Lab Pyhäsalmi mine, Finland.