A5066819942- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Atmospheric Ozone and Climate
- Radiation Detection and Scintillator Technologies
- Solar and Space Plasma Dynamics
- Gamma-ray bursts and supernovae
- Radio Astronomy Observations and Technology
- Pulsars and Gravitational Waves Research
- Advanced NMR Techniques and Applications
- Astro and Planetary Science
- Quantum, superfluid, helium dynamics
- Geophysics and Gravity Measurements
- Gas Sensing Nanomaterials and Sensors
- Geochemistry and Geochronology of Asian Mineral Deposits
- Neonatal Health and Biochemistry
- Advanced Chemical Physics Studies
- Market Dynamics and Volatility
- Particle Detector Development and Performance
- Radioactive contamination and transfer
- Scientific Research and Discoveries
- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
Forschungszentrum Jülich
2017-2024
Max Planck Institute for Nuclear Physics
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca
2023
Institut de Recherche sur les Lois Fondamentales de l'Univers
2022
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2022
Centre National de la Recherche Scientifique
2022
Université Paris Cité
2022
Sorbonne Paris Cité
2022
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2019-2022
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2022
A search for the solar neutrino effective magnetic moment has been performed using data from 1291.5 days exposure during second phase of Borexino experiment. No significant deviations expected shape electron recoil spectrum neutrinos have found, and a new upper limit on $\mu_{\nu}^{eff}$ $<$ 2.8$\cdot$10$^{-11}$ $\mu_{B}$ at 90\% c.l. set constraints sum fluxes implied by radiochemical gallium experiments.Using moment, limits moments flavor states, elements matrix Dirac Majorana neutrinos,...
We present the simultaneous measurement of interaction rates ${R}_{pp}$, ${R}_{\mathrm{Be}}$, ${R}_{pep}$ $pp$, $^{7}\mathrm{Be}$, and $pep$ solar neutrinos performed with a global fit to Borexino data in an extended energy range (0.19--2.93) MeV particular attention details analysis methods. This result was obtained by analyzing 1291.51 days Phase-II data, collected after extensive scintillator purification campaign. Using counts per day $(\mathrm{cpd})/100\text{ }\mathrm{ton}$ as unit, we...
We present an improved measurement of the carbon-nitrogen-oxygen (CNO) solar neutrino interaction rate at Earth obtained with complete Borexino Phase-III dataset. The measured rate, R_{CNO}=6.7_{-0.8}^{+2.0} counts/(day×100 tonnes), allows us to exclude absence CNO signal about 7σ C.L. correspondent flux is 6.6_{-0.9}^{+2.0}×10^{8} cm^{-2} s^{-1}, taking into account flavor conversion. use new evaluate C and N abundances in Sun respect H abundance for first time neutrinos. Our result...
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 report on an improved measurement of the $^{8}\mathrm{B}$ solar neutrino interaction rate with Borexino experiment at Laboratori Nazionali del Gran Sasso. Neutrinos are detected via their elastic scattering electrons in a large volume liquid scintillator. The measured scattered above 3 MeV energy is ${0.223}_{\ensuremath{-}0.016}^{+0.015}(\mathrm{stat}){\text{ }}_{\ensuremath{-}0.006}^{+0.006}(\mathrm{syst})\text{ }\text{ }\mathrm{cpd}/100\text{ }\mathrm{t}$, which corresponds to observed...
We report the first measurement of CNO solar neutrinos by Borexino that uses Correlated Integrated Directionality (CID) method, exploiting sub-dominant Cherenkov light in liquid scintillator detector. The directional information origin is preserved fast photons from neutrino scattered electrons, and used to discriminate between signal background. independent spectral on which previous measurements were based. While analysis could only be applied Phase-III dataset, can use complete data...
Abstract The electron antineutrino flux limits are presented for the brightest gamma-ray burst (GRB) of all time, GRB221009A, over a range 1.8–200 MeV using Kamioka Liquid Scintillator Antineutrino Detector. Using multiple time windows ranging from minutes to days surrounding event search antineutrinos coincident with GRB, we set an upper limit on under assumption several power-law neutrino source spectra, indices 1.5 3 in steps 0.5. No excess was observed any seconds around trigger T 0 ....
The Borexino experiment concluded the data acquisition at end of 2021 and among solar neutrino experiments it has been only one capable reconstructing position energy on an event-by-event base, with threshold 150 keV, thanks to its ultra-high radio-purity. experimental techniques analysis methods that allowed reach such unprecedented levels radio-purity are now a standard legacy leaves next low neutrinos rare event searching experiments. This contribution is aimed present main achievements...
We have measured the flux of cosmic muons in Laboratori Nazionali del Gran Sasso at 3800 m w.e. to be (3.432 ± 0.003)⋅ 10−4 m−2s−1 based on ten years Borexino data acquired between May 2007 and 2017. A seasonal modulation with a period (366.3 0.6) d relative amplitude (1.36 ±0.04)% is observed. The phase (181.7 0.4) d, corresponding maximum 1st July. Using inferred from global atmospheric models, we show muon positively correlated temperature measure effective coefficient αT = 0.90 0.02....
Liquid scintillator detectors play a central role in the detection of neutrinos from various sources. In particular, it is only technique used so far for precision spectroscopy sub-MeV solar neutrinos, as demonstrated by Borexino experiment at Gran Sasso National Laboratory Italy. The benefit high light yield, and thus low energy threshold good resolution, comes cost directional information featured water Cherenkov detectors, measuring 8B above few MeV. this paper we provide first...
Abstract Neutrinos emitted in the carbon, nitrogen, oxygen (CNO) fusion cycle Sun are a sub-dominant, yet crucial component of solar neutrinos whose flux has not been measured yet. The Borexino experiment at Laboratori Nazionali del Gran Sasso (Italy) unique opportunity to detect them directly thanks detector’s radiopurity and precise understanding detector backgrounds. We discuss sensitivity CNO neutrinos, which is based on strategies we adopted constrain rates two most relevant background...
We present a search for neutrinoless double-beta ($0\nu\beta\beta$) decay of $^{136}$Xe using the full KamLAND-Zen 800 dataset with 745 kg enriched xenon, corresponding to an exposure $2.097$ ton yr $^{136}$Xe. This updated benefits from more than twofold increase in exposure, recovery photo-sensor gain, and reduced background muon-induced spallation xenon. Combining previous phase, we obtain lower limit $0\nu\beta\beta$ half-life $T_{1/2}^{0\nu} > 3.8 \times 10^{26}$ at 90% C.L., factor 1.7...
Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso in Italy. Since start of its data taking May 2007, it has provided several measurements low-energy neutrinos from various sources. At base success, lie unprecedented levels radio-purity and extensive thermal stabilisation, both resulting years-long effort collaboration. Solar neutrinos, emitted hydrogen-to-helium fusion solar core, are important for understanding our star, as well neutrino...
Abstract Cosmogenic radio-nuclei are an important source of background for low-energy neutrino experiments. In Borexino, cosmogenic $$^{11}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mn>11</mml:mn> </mml:msup> </mml:math> C decays outnumber solar pep and CNO events by about ten to one. order extract the flux these two species, a highly efficient identification this is mandatory. We present here details most consolidated strategy, used throughout...
The search for neutrino events in correlation with gravitational wave (GW) three observing runs (O1, O2 and O3) from 09/2015 to 03/2020 has been performed using the Borexino data-set of same period. We have searched signals neutrino-electron scattering visible energies above 250 keV within a time window 1000 s centered at detection moment particular GW event. was done energy thresholds 0.25, 0.8 3.0 MeV.Two types incoming spectra were considered: mono-energetic line spectrum expected...
The Borexino detector measures solar neutrino fluxes via neutrino-electron elastic scattering. Observed spectra are determined by the solar-$\nu_{e}$ survival probability $P_{ee}(E)$, and chiral couplings of electron. Some theories physics beyond Standard Model postulate existence Non-Standard Interactions (NSI's) which modify $P_{ee}(E)$. In this paper, we search for such NSI's, in particular, flavor-diagonal neutral current interactions that $\nu_e e$ $\nu_\tau using Phase II data. Solar...
Abstract Borexino is a 300 ton sub-MeV liquid scintillator solar neutrino detector which has been running at the Laboratori Nazionali del Gran Sasso (Italy) since 2007. Thanks to its unprecedented radio-purity, it was able measure flux of 7 Be, 8 B, pp, and pep neutrinos detect geo-neutrinos. A reliable simulation an invaluable tool for all physics analyses. The accounts energy loss particles in components, generation scintillation photons, their propagation within volume, detailed...
We report the measurement of sub-MeV solar neutrinos through use their associated Cherenkov radiation, performed with Borexino detector at Laboratori Nazionali del Gran Sasso. The is achieved using a novel technique that correlates individual photon hits events to known position Sun. In an energy window between 0.54 0.74 MeV, selected dominant scintillation light, we have measured 10 887_{-2103}^{+2386}(stat)±947(syst) (68% confidence interval) out 19 904 total events. This corresponds...