C. Distefano
A5024758343- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Radio Astronomy Observations and Technology
- Gamma-ray bursts and supernovae
- Particle Detector Development and Performance
- Pulsars and Gravitational Waves Research
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Methane Hydrates and Related Phenomena
- Tropical and Extratropical Cyclones Research
- Atmospheric Ozone and Climate
- Particle accelerators and beam dynamics
- Environmental Monitoring and Data Management
- Planetary Science and Exploration
- Astrophysical Phenomena and Observations
- Soil Moisture and Remote Sensing
- Underwater Vehicles and Communication Systems
- Nuclear Physics and Applications
- Oceanographic and Atmospheric Processes
- Muon and positron interactions and applications
- Quantum, superfluid, helium dynamics
- Computational Physics and Python Applications
- Astronomy and Astrophysical Research
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2016-2025
Istituto Nazionale di Fisica Nucleare
2010-2024
Czech Technical University in Prague
2024
National Institute for Health Research
2024
University of Birmingham
2024
Comenius University Bratislava
2024
University of Ferrara
2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2024
National Institute for Subatomic Physics
2006-2023
Institute of Nuclear and Particle Physics
2019-2022
The main objectives of the KM3NeT Collaboration are (i) discovery and subsequent observation high-energy neutrino sources in Universe (ii) determination mass hierarchy neutrinos. These strongly motivated by two recent important discoveries, namely: (1) astrophysical signal reported IceCube (2) sizable contribution electron neutrinos to third eigenstate as Daya Bay, Reno others. To meet these objectives, plans build a new Research Infrastructure consisting network deep-sea telescopes...
We report the discovery of four Fast Radio Bursts (FRBs) in ongoing SUrvey for Pulsars and Extragalactic at Parkes Telescope: FRBs 150610, 151206, 151230 160102. Our real-time discoveries have enabled us to conduct extensive, rapid multimessenger follow-up 12 major facilities sensitive radio, optical, X-ray, gamma-ray photons neutrinos on time-scales ranging from an hour a few months post-burst. No counterparts were found we provide upper limits afterglow luminosities. None seen repeat....
In this paper, a time-integrated search for point sources of cosmic neutrinos is presented using the data collected from 2007 to 2010 by ANTARES neutrino telescope. No statistically significant signal has been found and upper limits on flux have obtained. Assuming an E−2ν spectrum, these are at 1–10 ×10−8 GeV cm−2 s−1 declinations ranging −90° 40°. Limits specific models RX J1713.7−3946 Vela X, which include information source morphology also given.
Four collaborations, ANTARES, IceCube, LIGO, and Virgo, join forces to report the non-observation of neutrino events correlated with GW150914 gravitational wave event reported recently by LIGO. Although paper reports a negative result, it both sets important constraints on production in binary coalescence marks significant step multimessenger astronomy.
A search for muon neutrinos originating from dark matter annihilations in the Sun is performed using data recorded by ANTARES neutrino telescope 2007 to 2012. In order obtain best possible sensitivities signals, an optimisation of event selection criteria taking into account background atmospheric muons, and energy spectra expected signals. No significant excess over observed $90\%$ C.L. upper limits on flux, spin--dependent spin--independent WIMP-nucleon cross--sections are derived WIMP...
KM3NeT will be a network of deep-sea neutrino telescopes in the Mediterranean Sea. The KM3NeT/ARCA detector, to installed at Capo Passero site (Italy), is optimised for detection high-energy neutrinos cosmic origin. Thanks its geographical location on Northern hemisphere, can observe upgoing from most Galactic Plane, including Centre. Given effective area and excellent pointing resolution, measure or significantly constrain flux potential astrophysical sources. At same time, it test...
A search for high-energy neutrinos coming from the direction of Sun has been performed using data recorded by ANTARES neutrino telescope during 2007 and 2008. The selection criteria have chosen to maximize possible signals produced self-annihilation weakly interacting massive particles accumulated in centre with respect atmospheric background. After unblinding, number observed towards was found be compatible background expectations. $90\%$ CL upper limits terms spin-dependent...
A search for cosmic neutrino sources using six years of data collected by the ANTARES telescope has been performed. Clusters muon neutrinos over expected atmospheric background have looked for. No clear signal found. The most signal-like accumulation events is located at equatorial coordinates R.A. = −468 and decl. −649 corresponds to a 2.2σ fluctuation. In addition, upper limits on flux normalization an E−2 energy spectrum set 50 pre-selected astrophysical objects. Finally, motivated seven...
The Advanced LIGO and Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merger of this was also recorded by Fermi Gamma-ray Burst Monitor (Fermi-GBM), Anti-Coincidence Shield for Spectrometer International Gamma-Ray Astrophysics Laboratory (INTEGRAL), indicating particle acceleration source. precise location event determined optical detections emission following merger. We searched high-energy...
The next generation of water Cherenkov neutrino telescopes in the Mediterranean Sea are under construction offshore France (KM3NeT/ORCA) and Sicily (KM3NeT/ARCA). KM3NeT/ORCA detector features an energy detection threshold which allows to collect atmospheric neutrinos study flavour oscillation. This paper reports sensitivity this phenomenon. event reconstruction, selection classification described. determine mass ordering was evaluated found be 4.4 $\sigma$ if true is normal 2.3 inverted,...
Abstract The optical module of the KM3NeT neutrino telescope is an innovative multi-faceted large area photodetection module. It contains 31 three-inch photomultiplier tubes in a single 0.44 m diameter pressure-resistant glass sphere. sensory device also comprising calibration instruments and electronics for power, readout data acquisition. capped with breakout-box connection to electro-optical cable power long-distance communication onshore control station. design was qualified first time...
Interactions of cosmic ray protons, atomic nuclei, and electrons in the interstellar medium inner part Milky Way produce a $\gamma$-ray flux from Galactic Ridge. If emission is dominated by proton nuclei interactions, neutrino comparable to expected same sky region. Data collected ANTARES telescope are used constrain Ridge 1-100 TeV energy range. Neutrino events reconstructed both as tracks showers considered analysis selection optimized for search an excess region $|l| < 30\deg$, $|b|...
The ANTARES neutrino telescope, located 40km off the coast of Toulon in Mediterranean Sea at a mooring depth about 2475m, consists twelve detection lines equipped typically with 25 storeys. Every storey carries three optical modules that detect Cherenkov light induced by charged secondary particles (typically muons) coming from interactions. As these are flexible structures fixed to sea bed and held taut buoy, currents cause move storeys rotate. knowledge position precision better than 10cm...
We report on the discovery of a new fast radio burst, FRB 150215, with Parkes telescope 2015 February 15. The burst was detected in real time dispersion measure (DM) 1105.6$\pm$0.8 pc cm^{-3}, pulse duration 2.8^{+1.2}_{-0.5} ms, and measured peak flux density assuming at beam center 0.7^{+0.2}_{-0.1} Jy. originated Galactic longitude latitude 24.66^{\circ}, 5.28^{\circ}, 25 degrees away from Center. found to be 43$\pm$5% linearly polarized rotation (RM) range -9 < RM 12 rad m^{-2} (95%...
A search for cosmic neutrino sources using the data collected with ANTARES telescope between early 2007 and end of 2015 is performed. For first time, all interactions---charged- neutral-current interactions flavors---are considered in a point-like detector. In previous analyses, only muon charged-current were used. This achieved by novel reconstruction algorithm shower-like events addition to standard track reconstruction. The shower channel contributes about 23% signal an...
The data taken with the ANTARES neutrino telescope from 2007 to 2010, a total live time of 863 days, are used measure oscillation parameters atmospheric neutrinos. Muon tracks reconstructed energies as low 20 GeV. Neutrino oscillations will cause suppression vertical upgoing muon neutrinos such crossing Earth. determining extracted by fitting event rate function ratio estimated energy and flight path through Measurement contours in two-flavour approximation derived. Assuming maximal mixing,...
A search for muon neutrinos in coincidence with gamma-ray bursts the ANTARES neutrino detector using data from end of 2007 to 2011 is performed. Expected fluxes are calculated each burst individually. The most recent numerical calculations spectra NeuCosmA code employed, which include Monte Carlo simulations full underlying photohadronic interaction processes. discovery probability a selection 296 given period optimised an extended maximum-likelihood strategy. No significant excess over...
The first prototype of a photo-detection unit the future KM3NeT neutrino telescope has been deployed in deep waters Mediterranean Sea. This digital optical module novel design with very large photocathode area segmented by use 31 three inch photomultiplier tubes. It integrated ANTARES detector for in-situ testing and validation. paper reports on months data taking rate measurements. analysis results highlight capabilities new terms background suppression signal recognition. directionality...
Using data recorded with the ANTARES telescope from 2007 to 2015, a new search for dark matter annihilation in Milky Way has been performed. Three halo models and five channels, $\rm WIMP + \to b \bar b, W^+ W^-, \tau^+ \tau^-, \mu^{+} \mu^{-}$ $\nu \bar{\nu}$, masses ranging 50 $\frac{\text{GeV}}{\text{c}^2}$ 100 $\frac{\text{TeV}}{\text{c}^2}$, were considered. No excess over expected background was found, limits on thermally averaged cross--section set.
We present the results of first combined dark matter search targeting Galactic Centre using ANTARES and IceCube neutrino telescopes. For particles with masses from 50 to 1000 GeV, sensitivities on self-annihilation cross section set by are comparable, making this mass range particularly interesting for a joint analysis. Dark through $\tau^+\tau^-$, $\mu^+\mu^-$, $b\bar{b}$ $W^+W^-$ channels is considered both Navarro-Frenk-White Burkert halo profiles. In combination 2,101.6 days data 1,007...