P. Chimenti
A5086609303- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- High-Energy Particle Collisions Research
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Muon and positron interactions and applications
- Nuclear physics research studies
- Magnetic confinement fusion research
- Nuclear Physics and Applications
- Medical Imaging Techniques and Applications
- Nuclear reactor physics and engineering
- Parallel Computing and Optimization Techniques
- Complex Systems and Time Series Analysis
- Quantum Chromodynamics and Particle Interactions
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Quantum, superfluid, helium dynamics
- Laser-Plasma Interactions and Diagnostics
- Statistical Mechanics and Entropy
- Galaxies: Formation, Evolution, Phenomena
Universidade Estadual de Londrina
2018-2025
Université Libre de Bruxelles
2022-2024
A. Alikhanyan National Laboratory
2022-2024
Beijing Normal University
2022-2024
China Institute of Atomic Energy
2024
China Academy of Space Technology
2024
Pontifical Catholic University of Rio de Janeiro
2022-2024
Federico Santa María Technical University
2022
Centro Brasileiro de Pesquisas Físicas
2011-2021
Centre National de la Recherche Scientifique
2020
The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio events 0.944±0.016(stat)±0.040(syst) was obtained in 101 days running at the nuclear power plant France, two 4.25 GW(th) reactors. results were from a single 10 m(3) fiducial volume detector located 1050 m cores. flux prediction used Bugey4 measurement after correction for differences core composition. deficit can be...
The Double Chooz experiment has observed 8249 candidate electron antineutrino events in 227.93 live days with 33.71 GW-ton-years ($\mathrm{\text{reactor power}}\ifmmode\times\else\texttimes\fi{}\mathrm{\text{detector mass}}\ifmmode\times\else\texttimes\fi{}\mathrm{\text{live time}}$) exposure using a $10.3\text{ }\text{ }{\mathrm{m}}^{3}$ fiducial volume detector located at 1050 m from the reactor cores of nuclear power plant France. expectation case ${\ensuremath{\theta}}_{13}=0$ is 8937...
The Double Chooz experiment presents improved measurements of the neutrino mixing angle θ 13 using data collected in 467.90 live days from a detector positioned at an average distance 1050 m two reactor cores nuclear power plant. Several novel techniques have been developed to achieve significant reductions backgrounds and systematic uncertainties with respect previous publications, whereas efficiency $$ {\overline{\nu}}_e signal has increased. value is measured be sin2 2θ = 0.090 − 0.029 +...
The conclusions of the Physics Working Group international scoping study a future Neutrino Factory and super-beam facility (the ISS) are presented. ISS was carried by community between NuFact05, 7th International Workshop on Factories Superbeams, Laboratori Nazionali di Frascati, Rome, June 21-26, 2005) NuFact06 (Ivine, California, 24{30 August 2006). physics case for an extensive experimental programme to understand properties neutrino is presented role high-precision measurements...
The Double Chooz experiment has determined the value of neutrino oscillation parameter $\theta_{13}$ from an analysis inverse beta decay interactions with neutron capture on hydrogen. This uses a three times larger fiducial volume than standard assessment, which is restricted to region doped gadolinium (Gd), yielding exposure 113.1 GW-ton-years. data sample used in this distinct that Gd analysis, and systematic uncertainties are also largely independent, some exceptions, such as reactor flux...
A bstract We present the calibration strategy for 20 kton liquid scintillator central detector of Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional program, in combination with novel dual calorimetry technique exploiting two independent photosensors readout systems, we demonstrate that JUNO can achieve better than 1% energy linearity 3% effective resolution, required by neutrino mass ordering determination.
JUNO is a multi-purpose neutrino observatory under construction in the south of China. This publication presents new sensitivity estimates for measurement $\Delta m^2_{31}$, m^2_{21}$, $\sin^2 \theta_{12}$, and \theta_{13}$ oscillation parameters using reactor antineutrinos, which one primary physics goals experiment. The sensitivities are obtained best knowledge available to date on location overburden experimental site, nuclear reactors surrounding area beyond, detector response...
The Double Chooz collaboration presents a measurement of the neutrino mixing angle θ 13 using reactor $$ \overline{\nu_{\mathrm{e}}} observed via inverse beta decay reaction in which neutron is captured on hydrogen. This based 462.72 live days data, approximately twice as much data previous such analysis, collected with detector positioned at an average distance 1050 m from two cores. Several novel techniques have been developed to achieve significant reductions backgrounds and systematic...
The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from core Nuclear Power Plant. reactor antineutrino spectrum measured with sub-percent energy resolution, to provide reference for future neutrino experiments, and benchmark measurement test nuclear databases. spherical acrylic vessel containing 2.8 ton gadolinium-doped viewed by 10 m^2...
Main goal of the JUNO experiment is to determine neutrino mass ordering using a 20kt liquid-scintillator detector. Its key feature an excellent energy resolution at least 3 % 1 MeV, for which its instruments need meet certain quality and thus have be fully characterized. More than 20,000 20-inch PMTs been received assessed by after detailed testing program began in 2017 elapsed about four years. Based on this characterization set specific requirements, good all accepted could ascertained....
Abstract The core-collapse supernova (CCSN) is considered one of the most energetic astrophysical events in universe. early and prompt detection neutrinos before (pre-SN) during (SN) burst presents a unique opportunity for multi-messenger observations CCSN events. In this study, we describe monitoring concept present sensitivity system to pre-SN SN at Jiangmen Underground Neutrino Observatory (JUNO), 20 kton liquid scintillator detector currently under construction South China. real-time...
This document summarizes the work of Accelerator Working Group (AWG) International Scoping Study (ISS) a Future Neutrino Factory and Superbeam Facility. The main goal activity was to reach consensus on baseline design for complex, including proton driver parameters, choice target, front-end design, acceleration system decay ring geometry. Another explore commonality, if any, between those or Beta Beam facility. In general, requirements either latter facilities are less stringent than...
Abstract We present the detection potential for diffuse supernova neutrino background (DSNB) at Jiangmen Underground Neutrino Observatory (JUNO), using inverse-beta-decay (IBD) channel on free protons. employ latest information DSNB flux predictions, and investigate in detail its reduction search JUNO. The atmospheric induced neutral current (NC) turns out to be most critical background, whose uncertainty is carefully evaluated from both spread of model predictions an envisaged situ...
Abstract We explore the decay of bound neutrons in JUNO liquid scintillator detector into invisible particles (e.g., $$n\rightarrow 3 \nu $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>→</mml:mo> <mml:mn>3</mml:mn> <mml:mi>ν</mml:mi> </mml:mrow> </mml:math> or $$nn \rightarrow 2 <mml:mn>2</mml:mn> ), which do not produce an observable signal. The includes two modes: n { inv} <mml:mi>inv</mml:mi> and nn . decays s -shell $$^{12}\textrm{C}$$...
The oscillation results published by the Double Chooz Collaboration in 2011 and 2012 rely on background models substantiated reactor-on data. In this analysis, we present a background-model-independent measurement of mixing angle θ13 including 7.53 days reactor-off A global fit observed antineutrino rates for different reactor power conditions is performed, yielding both total rate. are improved significantly data fit, as it provides direct This rate modulation analysis considers candidates...
A bstract JUNO is a massive liquid scintillator detector with primary scientific goal of determining the neutrino mass ordering by studying oscillated anti-neutrino flux coming from two nuclear power plants at 53 km distance. The expected signal interaction rate only 60 counts per day (cpd), therefore careful control background sources due to radioactivity critical. In particular, natural present in all materials and environment represents serious issue that could impair sensitivity...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay mode with JUNO investigated. kaon and its particles feature clear three-fold coincidence signature that results high efficiency identification. Moreover, excellent energy resolution permits suppression sizable background caused by other delayed signals. Based on these...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose experiment, under construction in southeast China, that designed to determine the neutrino mass ordering and precisely measure oscillation parameters. Monte Carlo simulation plays an important role for JUNO detector design, commissioning, offline data processing, physics processing. experiment has world’s largest liquid scintillator instrumented with many thousands of PMTs. broad energy range interest, long...