G. Saracino
A5006982630- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- Computational Physics and Python Applications
- Muon and positron interactions and applications
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Black Holes and Theoretical Physics
- Geophysical and Geoelectrical Methods
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- Earthquake Detection and Analysis
- Geophysics and Gravity Measurements
- Nuclear physics research studies
- Graphite, nuclear technology, radiation studies
- Historical, Religious, and Philosophical Studies
- Geomagnetism and Paleomagnetism Studies
- Solar and Space Plasma Dynamics
- Scientific Research and Discoveries
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2015-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
1998-2024
Roma Tre University
2024
University of Naples Federico II
2014-2024
Istituto Nazionale di Fisica Nucleare
2000-2024
TRIUMF
2023-2024
Naples Anesthesia & Physician Associates
2023
UCLouvain
2022-2023
Joint Institute for Nuclear Research
2011-2020
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2016-2018
NA62 is a fixed-target experiment at the CERN SPS dedicated to measurements of rare kaon decays. Such measurements, like branching fraction K+ → π+ ν decay, have potential bring significant insights into new physics processes when comparison made with precise theoretical predictions. For this purpose, innovative techniques been developed, in particular, domain low-mass tracking devices. Detector construction spanned several years from 2009 2014. The collaboration started detector...
A bstract The NA62 experiment reports the branching ratio measurement $$ \mathrm{BR}\left({K}^{+}\to {\pi}^{+}\nu \overline{\nu}\right)=\left({10.6}_{-3.4}^{+4.0}\left|{}_{\mathrm{stat}}\right.\pm {0.9}_{\mathrm{syst}}\right)\times {10}^{-11} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>BR</mml:mi> <mml:mfenced> <mml:mrow> <mml:msup> <mml:mi>K</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>→</mml:mo> <mml:mi>π</mml:mi> <mml:mi>ν</mml:mi> <mml:mover> <mml:mo>¯</mml:mo>...
A precision measurement of the ratio RK rates kaon leptonic decays K±→e±ν and K±→μ±ν with full data sample collected by NA62 experiment at CERN in 2007–2008 is reported. The result, obtained analysing ∼150000 reconstructed candidates 11% background contamination, RK=(2.488±0.010)×10−5, agreement Standard Model expectation.
Abstract Muography is an imaging technique based on the measurement of absorption profiles for muons as they pass through rocks and earth. Muons are produced in interactions high-energy cosmic rays Earth’s atmosphere. The conceptually similar to usual X-ray radiography, but with extended capabilities investigating over much larger thicknesses matter thanks penetrating power muons. Over centuries a complex system cavities has been excavated yellow tuff Mt. Echia, site earliest settlement city...
A search for heavy neutral lepton production in $K^+$ decays using a data sample collected with minimum bias trigger by the NA62 experiment at CERN 2015 is reported. Upper limits $10^{-7}$ to $10^{-6}$ level are established on elements of extended neutrino mixing matrix $|U_{\ell 4}|^2$ ($\ell=e,\mu$) mass range $170-448~{\rm MeV}/c^2$. This improves results from previous searches decays, setting more stringent and extending range.
A search for heavy neutral lepton (N) production in K+→e+N decays using the data sample collected by NA62 experiment at CERN 2017–2018 is reported. Upper limits of extended neutrino mixing matrix element |Ue4|2 are established level 10−9 over most accessible mass range 144–462 MeV/c2, with assumption that lifetime exceeds 50 ns. These improve significantly upon those previous and decay searches. The favoured Big Bang Nucleosynthesis excluded up to a about 340 MeV/c2.
The NA62 experiment at CERN reports searches for $K^+\to\mu^+N$ and $K^+\to\mu^+\nu X$ decays, where $N$ $X$ are massive invisible particles, using the 2016-2018 data set. particle is assumed to be a heavy neutral lepton, results expressed as upper limits of ${\cal O}(10^{-8})$ neutrino mixing parameter $|U_{\mu4}|^2$ masses in range 200-384 MeV/$c^2$ lifetime exceeding 50 ns. considered scalar or vector hidden sector mediator decaying an final state, decay branching fraction 10-370 reported...
Abstract The muographic imaging of volcanoes relies on the measured transmittance atmospheric muon flux through target. An important bias affecting result comes from background contamination mimicking a higher transmittance. MU‐RAY and TOMUVOL collaborations independently in 2013 transmitted Puy de Dôme volcano using their early prototype detectors, based plastic scintillators Glass Resistive Plate Chambers, respectively. These detectors had three (MU‐RAY) or four (TOMUVOL) detection layers...
The NA62 experiment at the CERN SPS reports first search for $K^+ \rightarrow \pi^+ \nu \bar{\nu}$ using decay-in-flight technique, based on a sample of $1.21\times10^{11}$ $K^+$ decays collected in 2016. single event sensitivity is $3.15\times 10^{-10}$, corresponding to 0.267 Standard Model events. One signal candidate observed while expected background 0.152 This leads an upper limit $14 \times 10^{-10}$ branching ratio 95\% CL.
Muography (or muon radiography) is a technique that exploits the penetration capability of muons, elementary particles similar to electrons but with mass about 200 times larger. High energy muons are naturally produced in interactions cosmic rays Earth atmosphere. The measurement their absorption matter allows imaging inner structure large bodies. technological developments detection have opened way its application various fields, such as archaeology, studies geological structures, civil...
A bstract The NA62 experiment at the CERN SPS reports a study of sample 4 × 10 9 tagged π 0 mesons from K + → ( γ ), searching for decay to invisible particles. No signal is observed in excess expected background fluctuations. An upper limit . − set on branching ratio 90% confidence level, improving previous results by factor 60. This result can also be interpreted as model- independent X , where particle escaping detection with mass range 0.110–0.155 GeV /c 2 and rest lifetime greater than...
A sample of 3984 candidates the K+→π+γγ decay, with an estimated background 291±14 events, was collected by NA62 experiment at CERN during 2017–2018. In order to describe observed di-photon mass spectrum, next-to-leading contribution in chiral perturbation theory found be necessary. The decay branching ratio full kinematic range is measured (9.61±0.17)×10−7. first search for production and prompt axion-like particle gluon coupling process K+→π+a, a→γγ also reported.
Muon Radiography allows to map the density of a volcanic cone. It is based on measurement attenuation flux muons present in cosmic radiation ground. The MU-RAY project has developed an innovative detector designed for muon radiography. main features are low electric power consumption, robustness and transportability, good spatial resolution time flight measurement. A 1 m2 prototype been constructed. collected data at Mt. Vesuvius approximately month spring 2013. second campaign performed Puy...
A study of the dynamics rare decay K±→π±γγ has been performed on a sample 232 candidates, with an estimated background 17.4±1.1 events, collected by NA62 experiment at CERN in 2007. The results are combined those from measurement conducted NA48/2 Collaboration CERN. model-independent branching ratio kinematic range z=(mγγ/mK)2>0.2 is BMI(z>0.2)=(0.965±0.063)×10−6, and full assuming Chiral Perturbation Theory description B(Kπγγ)=(1.003±0.056)×10−6. detailed comparison previous measurements performed.
A bstract search for the K + → π X decay, where is a long-lived feebly interacting particle, performed through an interpretation of $$ {\pi}^{+}\nu \overline{\nu} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mi>ν</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> analysis data collected in 2017 by NA62 experiment at CERN. Two ranges masses, 0–110 MeV /c 2 and 154–260 , lifetimes above 100 ps are...