A5000785774- Nuclear physics research studies
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- Astronomical and nuclear sciences
- Particle Detector Development and Performance
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Advanced Chemical Physics Studies
- Astrophysics and Cosmic Phenomena
- Particle accelerators and beam dynamics
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Superconducting Materials and Applications
- Medical Imaging Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Radiation Therapy and Dosimetry
- Nuclear Materials and Properties
- Astro and Planetary Science
- Inorganic Fluorides and Related Compounds
- Advanced NMR Techniques and Applications
- Radiopharmaceutical Chemistry and Applications
Istituto Nazionale di Fisica Nucleare, Sezione di Catania
2016-2025
Czech Technical University in Prague
2024
Istituto Nazionale di Fisica Nucleare
2003-2024
Universidad Complutense de Madrid
2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2010-2023
University of Catania
2006-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2023
University of Bologna
2023
Université Paris-Sud
2007-2020
The reaction $^{6}\mathrm{He}+^{64}\mathrm{Zn}$ was studied in order to investigate the effects of projectile neutron-halo structure on mechanism at energies around Coulomb barrier. Elastic scattering angular distributions, transfer∕breakup and fusion excitation functions have been measured. Due low-recoil energy evaporation residues low intensity $^{6}\mathrm{He}$ beam, cross section measured by detecting off-line atomic x-ray emission which follows electron capture decay residues. For...
Collisions induced by Be9,10,11 on a Zn64 target at the same c.m. energy were studied. For first time, strong effects of Be11 halo structure elastic-scattering and reaction mechanisms energies near Coulomb barrier are evidenced experimentally. The cross section nucleus shows unusual behavior in Coulomb-nuclear interference peak angular region. extracted total-reaction for collision is more than double ones measured collisions Be9,10. It shown that such enhancement with due to transfer...
In this paper details of the experimental procedure and data analysis collision ${}^{11}\mathrm{Be}{+}^{64}$Zn around Coulomb barrier are described discussed in framework different theoretical approaches. a previous work [A. Di Pietro et al., Phys. Rev. Lett. 105, 022701 (2010).], elastic scattering angular distribution collisions ${}^{9,10}\mathrm{Be}{+}^{64}$Zn as well for quasielastic transfer/breakup cross sections reaction were briefly reported. The suppression Coulomb-nuclear...
The astrophysically important 7Li(p, α)α reaction has been studied via the Trojan horse method in energy range E = 10-400 keV. A new theoretical description, based on distorted-wave Born approximation approach, allows one to extract information bare astrophysical S-factor, Sb(E), with Sb(0) 55 ± 3 keV barns. results are compared direct experimental data leading a model-independent value of electron screening potential energy, Ue 330 40 eV, much higher than adiabatic limit Uad 175 eV.
The $^{11}\mathrm{B}(p,{\ensuremath{\alpha}}_{0})^{8}\mathrm{Be}$ reaction was studied from $1\phantom{\rule{0.3em}{0ex}}\text{MeV}$ down to astrophysical energies by means of the Trojan-horse method applied $^{2}\mathrm{H}(^{11}\mathrm{B},{\ensuremath{\alpha}}_{o}^{8}\mathrm{Be})n$ three-body performed at an incident energy $27\phantom{\rule{0.3em}{0ex}}\text{MeV}$. Coincidence spectra measured in a kinematically complete experiment show presence quasifree...
The ${}^{6}{\mathrm{L}\mathrm{i}(}^{6}\mathrm{Li},\ensuremath{\alpha}\ensuremath{\alpha}{)}^{4}\mathrm{He}$ three-body reaction has been studied in a kinematically complete experiment at ${E}_{{6}_{\mathrm{Li}}}=6\mathrm{MeV},$ from which indirect information on the ${}^{2}{\mathrm{H}(}^{6}\mathrm{Li},\ensuremath{\alpha}{)}^{4}\mathrm{He}$ two-body $13<~{E}_{\mathrm{c}.\mathrm{m}.}<~750\mathrm{}\mathrm{keV}$ extracted by applying Trojan horse method. method used recent improved formulation....
Fusion and transfer $+$ breakup channels have been studied in the collision induced by two-neutron-halo ${}^{6}$He on a ${}^{64}$Zn target at energies from below to above Coulomb barrier. For comparison, reaction stable isotope ${}^{4}$He same has studied. The fusion cross section measured using an activation technique, detecting off-line delayed x-ray activity following electron capture decay of evaporation residues. New measurements sub-barrier performed order cover energy range compare...
The ${}^{12}$C($\ensuremath{\alpha}$,$\ensuremath{\gamma}$)${}^{16}$O reaction plays a crucial role in stellar evolution. rate of this determines directly the ${}^{12}$C-to-${}^{16}$O abundance ratio at end helium burning phase stars and consequently has big effect on subsequent nucleosynthesis even evolution massive stars. However, despite many experimental studies, low-energy cross section remains uncertain. extrapolation measured sections to energies ($E\ensuremath{\sim}300$ keV) is made...
Abstract New absolute cross section measurements of the 19 F(p, α 0 ) 16 O and π O* reactions at energies close to Coulomb barrier are reported. The availability high-resolution low-noise energy spectra obtained in experiment allowed resolve 6.05–6.13 MeV doublet O. In particular, channel was measured poorly-known 1.3 bombarding region, investigated 1.6 where a strong discrepancy between previous data-sets is present. A comprehensive R -matrix fit, including new data, performed structure...
Abstract Ripening is an irreversible phenomenon involving several physiological, biochemical and organoleptic changes that affect the nutritional value, colour, texture taste of fruit. Amongst physical non-destructive technologies, Delayed Luminescence (DL) has been reported able to provide valid information on functional status living biological systems, reflecting in quality parameters following occurrence certain metabolic processes. In this study, we followed up analysed variations...
Elastic-scattering angular distributions for the $^{6}\mathrm{Li}+^{64}\mathrm{Zn}$ system were measured at eight beam energies from below to above Coulomb barrier, $12.0\ensuremath{\leqslant}{E}_{\mathrm{lab}}\ensuremath{\leqslant}22.0$ MeV. The experimental data analyzed within optical model study energy dependence of interaction potential and obtain total reaction cross sections. results obtained using several potentials show similar behavior. strengths real imaginary suggests presence...
Excitation functions for the production of heavy residues have been measured collisions ${}^{6,7}\mathrm{Li}+{}^{64}\mathrm{Zn}$ at energies around and below Coulomb barrier. The cross sections residue using an activation technique, detecting off-line characteristic atomic x-rays emitted in electron capture decay reaction products. experimental relative yields compared with statistical model calculations performed by code cascade. Such a comparison suggests that is dominated complete fusion...
Abstract This article presents a few selected developments and future ideas related to the measurement of $$(n,\gamma )$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>n</mml:mi> <mml:mo>,</mml:mo> <mml:mi>γ</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> data astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for use low-efficiency radiation detectors in time-of-flight neutron-capture measurements is discussed, with...
The ${}^{6}\mathrm{Li}(p,\ensuremath{\alpha}{)}^{3}\mathrm{He}$ reaction has been studied from ${E}_{\mathrm{c}.\mathrm{m}.}=2.4\mathrm{MeV}$ down to astrophysical energies by means of the indirect Trojan horse method applied ${}^{2}\mathrm{H}{(}^{6}\mathrm{Li},\ensuremath{\alpha}$ ${}^{3}\mathrm{He})$ n three-body performed at an incident energy 25 MeV. Coincidence spectra measured in a kinematically complete experiment show presence quasifree ${}^{6}\mathrm{Li}\ensuremath{-}p$ process....
Radioactive beams of $^{14}$O and $^{15}$O were used to populate the resonant states 1/2$^+$, 5/2$^+$ $0^-,1^-,2^-$ in unbound $^{15}$F $^{16}$F nuclei respectively by means proton elastic scattering reactions inverse kinematics. Based on their large spectroscopic factor values, can be viewed as a core plus 2s$_{1/2}$ or 1d$_{5/2}$ shell neutron 1p$_{1/2}$. Experimental energies derive strength 2s$_{1/2}$-1p$_{1/2}$ 1d$_{5/2}$-1p$_{1/2}$ proton-neutron interactions. It is found that former...
Intense and purified radioactive beam of post-accelerated 14O was used to study the low-lying states in unbound 15F nucleus. Exploiting resonant elastic scattering inverse kinematics with a thick target, second excited state, resonance at ER=4.757(6)(10)MeV width Γ=36(5)(14)keV measured for first time high precision. The structure this narrow above-barrier state nucleus located two neutrons beyond proton drip line investigated using Gamow Shell Model coupled channel representation 12C core...
The selectivity of the 10 B + reactions in populating different states neighboring nuclei was studied at beam energies 50.0 and 72.2 MeV. peculiar structure B, which can be described as a mixture shell model cluster configurations type 6 Li gs α or Li(0 2 , 1) [1], together with high spin ground state J π = 3 enabled population various high-spin high-excitation energy around A 10. We report discuss new rarely observed populated 12,13 C, 14 N, 16 O.
Food counterfeiting is an emerging problem worldwide and the increasing consumption of fake products has brought food safety into major focus. In recent years, several analytical approaches were developed to prevent counterfeiting. Among them, X-ray Fluorescence spectroscopy (XRF) as a fast simple screening tool for elemental analysis, with important applications in agri-food sector. The present work explores feasibility using portable XRF device verify quality geographical origin pistachio...
We have performed precision elastic backscattering measurements for the weakly bound nuclei 6,7Li on medium and heavy mass targets 58Ni, 116,120Sn 208Pb at sub- near-barrier energies (E c.m. /V bar = 0.6 to 1.3). Excitation functions of scattering cross-sections been measured ±160° ±170° corresponding ratios Rutherford relevant barrier distributions extracted. These complement recent work a 28Si target, probing systematically potential reaction mechanisms, while indicate possible breakdown...