G. Fiorentini
A5006273500- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Solar and Space Plasma Dynamics
- Atomic and Molecular Physics
- Nuclear physics research studies
- Radioactivity and Radon Measurements
- Atomic and Subatomic Physics Research
- Astro and Planetary Science
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- High-Energy Particle Collisions Research
- Cosmology and Gravitation Theories
- Gamma-ray bursts and supernovae
- Quantum, superfluid, helium dynamics
- Geophysics and Gravity Measurements
- Scientific Research and Discoveries
- Advanced Chemical Physics Studies
- Stellar, planetary, and galactic studies
- Cold Fusion and Nuclear Reactions
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Particle accelerators and beam dynamics
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2011-2021
Istituto Nazionale di Fisica Nucleare
1997-2020
University of Ferrara
2011-2020
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
2011-2020
RWTH Aachen University
2020
Institute of High Energy Physics
2020
Forschungszentrum Jülich
2020
Istituto Nazionale di Fisica Nucleare, Sezione di Catania
2019
Brazilian Synchrotron Light Laboratory
2008
University of Pavia
2003
The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine the neutrino mass hierarchy using an underground liquid scintillator detector. It located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. experimental hall, spanning more than 50 meters, under a granite mountain of over 700 m overburden. Within six years running, detection reactor antineutrinos can resolve at confidence level 3-4$\sigma$, oscillation parameters...
Geo-neutrinos, electron anti-neutrinos produced in beta decays of naturally occurring radioactive isotopes the Earth, are a unique direct probe our planet's interior. We report first observation at more than 3$\sigma$ C.L. geo-neutrinos, performed with Borexino detector Laboratori Nazionali del Gran Sasso. Anti-neutrinos detected through neutron inverse decay reaction. With 252.6 ton-yr fiducial exposure after all selection cuts, we 9.9^{+4.1}_{-3.4}(^{+14.6}_{-8.2}) geo-neutrino events,...
We present a measurement of the geo--neutrino signal obtained from 1353 days data with Borexino detector at Laboratori Nazionali del Gran Sasso in Italy. With fiducial exposure (3.69 $\pm$ 0.16) $\times$ $10^{31}$ proton year after all selection cuts and background subtraction, we detected (14.3 4.4) geo-neutrino events assuming fixed chondritic mass Th/U ratio 3.9. This corresponds to $S_{geo}$ = (38.8 12.0) TNU just 6 $10^{-6}$ probability for null measurement. U Th left as free parameters...
We report an improved geo-neutrino measurement with Borexino from 2056 days of data taking. The present exposure is $(5.5\pm0.3)\times10^{31}$ proton$\times$yr. Assuming a chondritic Th/U mass ratio 3.9, we obtain $23.7 ^{+6.5}_{-5.7} (stat) ^{+0.9}_{-0.6} (sys)$ events. null observation geo-neutrinos alone has probability $3.6 \times 10^{-9}$ (5.9$\sigma$). A signal the mantle obtained at 98\% C.L. radiogenic heat production for U and Th best-fit result restricted to range 23-36 TW, taking...
We study the behavior of string tension in SU(3) lattice pure-gauge theory close to deconfining critical point. find very large correlation lengths, increasing with size. This result is strongly suggestive a second-order phase transition, and excludes presence strong first-order transition.
This paper presents a comprehensive geoneutrino measurement using the Borexino detector, located at Laboratori Nazionali del Gran Sasso (LNGS) in Italy. The analysis is result of 3262.74 days data between December 2007 and April 2019. describes improved techniques optimized selection, which includes enlarged fiducial volume sophisticated cosmogenic veto. reported exposure (1.29±0.05)×1032 protons ×year represents an increase by factor two over previous 2015. By observing...
We predict geoneutrino fluxes in a reference model based on detailed description of Earth's crust and mantle using the best available information abundances uranium, thorium, potassium inside layers. estimate uncertainties corresponding to element abundances. In addition distance integrated fluxes, we also provide differential as function from several sites experimental interest. Event yields at locations are estimated their dependence neutrino oscillation parameters is discussed. At Kamioka...
We report on the results of ${}^{3}\mathrm{He}{(}^{4}\mathrm{He}{,2p)}^{4}\mathrm{He}$ experiment at underground accelerator facility LUNA (Gran Sasso). For first time lowest projectile energies utilized for cross section measurement correspond to below center solar Gamow peak ${(E}_{0}=22 \mathrm{keV})$. The data provide no evidence existence a hypothetical resonance in energy range investigated. Although extrapolation is needed anymore (except low-energy tail peak), must be corrected...
A compact high-current 50 kV ion accelerator facility including a windowless gas target system, beam calorimeter, and detector telescopes in close geometry has been built tested. The data acquisition analysis involved multiparameter system Monte Carlo program. LUNA facility, presently installed at the Gran Sasso underground laboratory, is pilot project focused initially on cross section measurements of 3He(3He, 2p)4He reaction within thermal energy region sun. To achieve this goal,...
The primordial abundance of 7Li as predicted by Big Bang Nucleosynthesis (BBN) is more than a factor 2 larger what has been observed in metal-poor halo stars. Herein, we analyze the possibility that this discrepancy originates from incorrect assumptions about nuclear reaction cross sections relevant for BBN. To do this, introduce an efficient method to calculate changes produced arbitrary (temperature dependent) modifications rates. Then, considering mainly 7Be via electron capture process...
We present a simple method for determining the (correlated) uncertainties of light element abundances expected from big bang nucleosynthesis, which avoids need lengthy Monte Carlo simulations. Our approach helps to clarify role different nuclear reactions contributing particular elemental abundance and makes it easy implement energy-independent changes in measured reaction rates. As an application, we demonstrate how this simplifies statistical estimation nucleon-to-photon ratio through...
The classical-trajectory Monte Carlo method has been used to determine the cross section for stripping of ${\mathrm{H}}^{\mathrm{\ensuremath{-}}}$ in collisions with p\ifmmode\bar\else\textasciimacron\fi{}. calculations were done relative velocities from 0.015\ensuremath{\alpha}c 1.0\ensuremath{\alpha}c. A maximum about 40 A${\r{}}^{2}$ is found, somewhat smaller than previous estimates.