L. Gialanella
A5012078049- Nuclear physics research studies
- Nuclear Physics and Applications
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Atomic and Molecular Physics
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced Chemical Physics Studies
- Particle accelerators and beam dynamics
- Radiation Detection and Scintillator Technologies
- Astronomical and nuclear sciences
- Silicon and Solar Cell Technologies
- Radioactive contamination and transfer
- Nuclear reactor physics and engineering
- Astro and Planetary Science
- Gamma-ray bursts and supernovae
- Radioactivity and Radon Measurements
- Stellar, planetary, and galactic studies
- Radioactive Decay and Measurement Techniques
- Ion-surface interactions and analysis
- Semiconductor materials and interfaces
- Superconducting Materials and Applications
- Quantum Chromodynamics and Particle Interactions
- Atmospheric Ozone and Climate
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2016-2025
University of Campania "Luigi Vanvitelli"
2014-2025
Istituto Nazionale di Fisica Nucleare
2004-2025
Institute of Nuclear and Particle Physics
2019-2022
National Centre of Scientific Research "Demokritos"
2019-2022
Ruhr University Bochum
1996-2021
Universitat Politècnica de València
2021
National Centre for Nuclear Research
2021
Institut Universitaire de France
2021
Leiden University
2021
The available data on nuclear fusion cross sections important to energy generation in the Sun and other hydrogen-burning stars solar neutrino production are summarized critically evaluated. Recommended values uncertainties provided for key sections, a recommended spectrum is given $^{8}\mathrm{B}$ neutrinos. Opportunities further increasing precision of rates also discussed, including new facilities, experimental techniques, improvements theory. This review, which summarizes conclusions...
The fusion reactions $^{12}\mathrm{C}(^{12}\mathrm{C},\ensuremath{\alpha})^{20}\mathrm{Ne}$ and $^{12}\mathrm{C}(^{12}\mathrm{C},p)^{23}\mathrm{Na}$ have been studied from $E=2.10$ to 4.75 MeV by $\ensuremath{\gamma}$-ray spectroscopy using a C target with ultralow hydrogen contamination. deduced astrophysical $S(E{)}^{*}$ factor exhibits new resonances at $E\ensuremath{\le}3.0\text{ }\text{ }\mathrm{MeV}$, in particular, strong resonance $E=2.14\text{ which lies the high-energy tail of...
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...
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,...
We give the LUNA results on cross section measurement of a key reaction proton-proton chain strongly affecting calculated neutrino luminosity from Sun: He3+He3-->He4+2p. Due to cosmic ray suppression provided by Gran Sasso underground laboratory it has been possible measure down lower edge solar Gamow peak, i.e. as low 16.5 keV centre mass energy. The data clearly show increase due electron screening effect but they do not exhibit any evidence for narrow resonance suggested explain observed flux.
The 3He(alpha,gamma)7Be reaction presently represents the largest nuclear uncertainty in predicted solar neutrino flux and has important implications on big bang nucleosynthesis, i.e., production of primordial 7Li. We present here results an experiment using recoil separator ERNA (European Recoil for Nuclear Astrophysics) to detect directly 7Be ejectiles. In addition, off-beam activation coincidence gamma-ray measurements were performed at selected energies. At energies above 1 MeV a large...
We discuss the influence of 12C(α, γ)16O reaction rate on central He burning stars in mass range 0.8-25 M☉, as well its effects explosive yields a 25 M☉ star solar chemical composition. find that is only marginally affected by change this cross section within currently accepted uncertainty range. The (important) quantity varies significantly amount C left burning. Since efficient convective core, we have also analyzed mixing determining final abundance Our main finding adopted scheme does...
An analysis of the fluorine abundance in Galactic asymptotic giant branch (AGB) carbon stars (24 N-type, 5 SC-type, and J-type) is presented. This study uses state-of-the-art carbon-rich atmosphere models improved atomic molecular line lists 2.3 μm region. Significantly lower F abundances are obtained comparison to previous studies literature. difference mainly due blends. In case differences model atmospheres also relevant. The new enhancements now agreement with most recent theoretical...
The fusion reaction $^{12}\mathrm{C}(^{12}\mathrm{C},\mathrm{p})^{23}\mathrm{Na}$ has been studied from $E=2.00$ to 4.00 MeV by particle spectroscopy. data reveal broad resonances above $E=3.00$ and are compatible with previously reported resonance structure around $E=2.1$ MeV. were limited at low energies count rates as well possible background contributions. This experiment extends the achieved low-energy measurement charged spectroscopy 2 MeV, which corresponds high-energy side of...
The gSeaGen code is a GENIE-based application developed to efficiently generate high statistics samples of events, induced by neutrino interactions, detectable in telescope. able events all flavours, considering topological differences between track-type and shower-like events. Neutrino interactions are simulated taking into account the density composition media surrounding detector. main features presented together with some examples its within KM3NeT project. Program Title: CPC Library...
Abstract The KM3NeT research infrastructure is under construction in the Mediterranean Sea. It consists of two water Cherenkov neutrino detectors, ARCA and ORCA, aimed at astrophysics oscillation research, respectively. Instrumenting a large volume sea with $$\sim {6200}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>∼</mml:mo> <mml:mn>6200</mml:mn> </mml:mrow> </mml:math> optical modules comprising total {200{,}000}$$ <mml:mn>200</mml:mn> <mml:mo>,</mml:mo>...
Abstract The rapid neutron capture process ( r -process) is responsible for producing about half of the elements heavier than iron in Universe through cataclysmic events such as core-collapse supernovae and star mergers (NSMs). Despite extensive research, exact astrophysical sites -process remain one unanswered questions science. well-known supernova-produced radioisotope 60 Fe has been detected terrestrial reservoirs, providing evidence that material from a nearby supernova reached Earth...
The electron screening effect in the d(d, p)t reaction has been studied for 29 deuterated metals and 5 insulators/semiconductors. As compared to measurements performed with a gaseous D2 target, large observed V, Nb, Ta, which belong group of periodic table, as well Cr, Mo, W (group 6), Mn Re 7), Fe Ru 8), Co, Rh, Ir 9), Ni, Pd, Pt 10), Zn Cd 12), Sn Pb 14). In contrast, comparatively small is found 4 (Ti, Zr, Hf), 11 (Cu, Ag, Au), 13 (B, Al), insulator BeO, semiconductors C, Si, Ge. An...
We reanalyze the problem of Li abundances in red giants nearly solar metallicity. After an outline problems affecting our knowledge content low-mass stars (M<3Mo), we discuss deep-mixing models for RGB stages suitable to account observed trends and correlated variations carbon isotope ratio; find that destruction these phases is limited masses below about 2.3 Mo. Subsequently, concentrate on final evolution both O-rich C-rich AGB stars. Here, constraints extra-mixing phenomena previously...
The Hamamatsu R12199-02 3-inch photomultiplier tube is the photodetector chosen for first phase of KM3NeT neutrino telescope. About 7000 photomultipliers have been characterised dark count rate, timing spread and spurious pulses. quantum efficiency, gain peak-to-valley ratio also measured a sub-sample in order to determine parameter values needed as input numerical simulations detector.