A5056792865- Nuclear physics research studies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
- Advanced NMR Techniques and Applications
- Advanced Chemical Physics Studies
- Nuclear reactor physics and engineering
- Quantum chaos and dynamical systems
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Rare-earth and actinide compounds
- Astro and Planetary Science
- Particle Detector Development and Performance
- X-ray Spectroscopy and Fluorescence Analysis
- Cold Atom Physics and Bose-Einstein Condensates
- X-ray Diffraction in Crystallography
- Particle physics theoretical and experimental studies
- Crystallization and Solubility Studies
- Gamma-ray bursts and supernovae
- Neutrino Physics Research
- High-pressure geophysics and materials
- Superconducting Materials and Applications
- Inorganic Fluorides and Related Compounds
University of Milan
2016-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2016-2025
University of Warsaw
2024
National Centre for Nuclear Research
2024
Institut de Recherche sur les Lois Fondamentales de l'Univers
2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2017-2023
CEA Paris-Saclay
2023
Istituto Nazionale di Fisica Nucleare
2007-2023
GSI Helmholtz Centre for Heavy Ion Research
2020-2022
KTH Royal Institute of Technology
2020
The nucleus ${}^{163}\mathrm{Lu}$ has been populated through the fusion-evaporation reaction ${}^{139}\mathrm{La}{(}^{29}\mathrm{Si},5n{)}^{163}\mathrm{Lu}$ with a beam energy of 152 MeV. electromagnetic properties several connecting transitions between two presumably triaxial, strongly deformed (TSD) bands have studied. Evidence is presented for assignment excited TSD band as wobbling mode built on yrast band, based comparisons to new calculations in which an aligned particle coupled...
The gamma decay from Coulomb excitation of 68Ni at 600 MeV/nucleon on a Au target was measured using the RISING setup fragment separator GSI. beam produced by fragmentation reaction 86Kr 900 9Be and selected separator. rays were with HPGe detectors forward angles BaF2 scintillators backward angles. spectra show peak centered approximately 11 MeV, whose intensity can be explained in terms an enhanced strength dipole response function (pygmy resonance). Such pygmy structure has been predicted...
The nucleus 163Lu has been populated through the reaction 139La(29Si,5n) with a beam energy of 157 MeV. Three triaxial, strongly deformed (TSD) bands have observed very similar rotational properties. first excited TSD band earlier assigned as one-phonon wobbling excitation built on lowest-lying (yrast) band. large B(E2)(out)/B(E2)(in) value obtainable for one four transitions between second and is in good agreement particle-rotor calculations two-phonon excitation.
The $\gamma$-ray strength function of $^{56}$Fe has been measured from proton-$\gamma$ coincidences for excitation energies up to $\approx 11$ MeV. low-energy enhancement in the function, which was first discovered ($^3$He,$\alpha\gamma$)$^{56}$Fe reaction, is confirmed with ($p,p^\prime\gamma$)$^{56}$Fe experiment reported here. Angular distributions $\gamma$ rays give time evidence that dominated by dipole transitions.
Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in wide region of nuclei, where other production methods have severe limitations or cannot be used at all.Purpose: Experimental information on the yields MNT comparison with theoretical calculations necessary make predictions for heavy nuclei.It is crucial determine fraction reaction products which surviving neutron emission fission high excitation energy after nucleon...
This article is devoted to a review of decay properties excited 0+ states in regions the nuclear chart well known for shape coexistence phenomena. Even-even isotopes around Z=20 (Ca), 28 (Ni), 50 (Sn), 82 (Pb) proton shell closures and along Z=36 (Kr), Z=38 (Sr) Z=40 (Zr) isotopic chains are mainly discussed. The aim identify examples extreme coexistence, namely highly deformed structures, localized Potential Energy Surface deformation space, which could lead γ decays substantially hindered....
The lifetimes of the first excited states N = 30 isotones (50)Ca and (51)Sc have been determined using Recoil Distance Doppler Shift method in combination with CLARA-PRISMA spectrometers. This is time such a applied to measure neutron-rich nuclei populated via multinucleon transfer reaction. extends lifetime knowledge beyond f_{7/2} shell closure allows us derive effective proton neutron charges fp near doubly magic nucleus (48)Ca, large-scale, shell-model calculations. These results...
The properties of pygmy dipole states in $^{208}\mathrm{Pb}$ were investigated using the $^{208}\mathrm{Pb}$($^{17}\mathrm{O}$, $^{17}\mathrm{O}'\ensuremath{\gamma}$) reaction at 340 MeV and measuring $\ensuremath{\gamma}$ decay with high resolution AGATA demonstrator array. Cross sections angular distributions emitted rays scattered particles measured. results are compared ($\ensuremath{\gamma}$, ${\ensuremath{\gamma}}^{\ensuremath{'}}$) ($p$, ${p}^{\ensuremath{'}}$) data. data analysis...
The neutron-rich cobalt isotopes up to $A=67$ have been studied through multinucleon transfer reactions by bombarding a ${}^{238}$U target with 460-MeV ${}^{70}$Zn beam. Unambiguous identification of prompt $\ensuremath{\gamma}$ rays belonging each nucleus has achieved using coincidence relationships the ions detected in high-acceptance magnetic spectrometer. new data are discussed terms systematics and interpreted large-scale shell-model calculations $fpgd$ model space. In particular, very...
The γ decay from the high-lying states of 124Sn was measured using inelastic scattering 17O at 340 MeV. emitted rays were detected with high resolution AGATA demonstrator array and scattered ions in two segmented ΔE–E silicon telescopes. angular distribution both for ions. An accumulation E1 strength below particle threshold found compared previous data obtained (γ,γ′) (α,α′γ) reactions. present results elastic scattering, excitation E2 analysed DWBA approach. From this comprehensive...
The neutron-rich lead isotopes, up to $^{216}\mathrm{Pb}$, have been studied for the first time, exploiting fragmentation of a primary uranium beam at FRS-RISING setup GSI. observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands introduction effective three-body interactions and two-body operators in conventional neutron valence space beyond $^{208}\mathrm{Pb}$.
The $\ensuremath{\gamma}$ decays of neutron-rich Ca isotopes around ${}^{48}$Ca were measured at Legnaro National Laboratory with the PRISMA-CLARA setup, using heavy-ion transfer reactions on ${}^{64}$Ni and ${}^{208}$Pb $\ensuremath{\approx}$6 MeV/A. work shows feasibility to perform full in-beam spectroscopy (in terms angular distributions, polarizations, lifetimes analysis), providing a method that can be further exploited in future heavy targets radioactive beams. For one-neutron...
A search for shape isomers in the ^{66}Ni nucleus was performed, following old suggestions of various mean-field models and recent ones, based on state-of-the-art Monte Carlo shell model (MCSM), all considering as lightest nuclear system with isomerism. By employing two-neutron transfer reaction induced by an ^{18}O beam a ^{64}Ni target, at sub-Coulomb barrier energy 39 MeV, three lowest-excited 0^{+} states were populated their γ decay observed γ-coincidence technique. The lifetimes...
In the EXILL campaign a highly efficient array of high purity germanium (HPGe) detectors was operated at cold neutron beam facility PF1B Institut Laue-Langevin (ILL) to carry out nuclear structure studies, via measurements γ-rays following neutron-induced capture and fission reactions. The setup consisted collimation system producing pencil with thermal equivalent flux about 108 n s−1cm−2 target position negligible halo. surrounded by an eight ten anti-Compton shielded EXOGAM Clover...
Theoretical predictions as well experiments performed at storage rings have shown that the lifetimes of β-radionuclides can change significantly a function ionization state. In this paper we describe an innovative approach, based on use compact plasma trap to emulate selected stellar-like conditions. It has been proposed within PANDORA project (Plasmas for Astrophysics, Nuclear Decay Observation and Radiation Archaeometry) with aim measure, first time in plasma, nuclear β-decay rates...
The low-spin structure of the 206Tl nucleus was studied in thermal neutron capture reaction 205Tl(𝑛,𝛾)206Tl at Institut Laue-Langevin Grenoble making use multidetector HPGe array Fission Product Prompt 𝛾-ray Spectrometer and 𝛾𝛾-coincidence techniques. information on discrete structures located below binding energy extended: a total number 99 𝛾 rays (75 new) were observed 21 excited states (8 located. analysis angular correlations used to extract transitions multipolarities, which helped...