La rinnovata definizione dell'assetto della finanza e dei tributi della Regione Siciliana tra disposizioni di attuazione dello Statuto e decreto-legge

Il contributo affronta il tema della definizione dei rapporti finanziari tra lo Stato e le Regioni speciali

Reazioni di trasferimento di neutroni indotte da fasci esotici ai LNS

"Sepolta viva". Il Governo Alessi e l'avvio dell'autonomia speciale della Regione Siciliana. (30 maggio 1947 - 11 gennaio 1949)

Il contributo ricostruisce le problematiche costituzionali poste dallo Statuto speciale della Regione Siciliana

Transfer reactions on light exotic nuclei studied with CHIMERA detector at LNS

The kinematical coincidence method is used to extract angular distribution of elastic scattering and transfer reactions. The detected light particle energy spectra are used to extract the angular distribution with around 1° resolution in the Center of Mass (CM) system. Examples with 10Be beam are presented. In the case of proton scattering, γ-ray coincidences are used to discriminate excited levels population from elastic scattering. © Owned by the authors, published by EDP Sciences, 2014.

Feasibility and physics potential of detecting $^8$B solar neutrinos at JUNO

The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent location for 8B solar neutrino measurements, such as its low-energy threshold, high energy resolution compared with water Cherenkov detectors, and much larger target mass compared with previous liquid scintillator detectors. In this paper, we present a comprehensive assessment of JUNO's potential for detecting 8B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2 MeV threshold for the recoil electron energy is found to be achievable, assuming that the intrinsic radioactive …

Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector

To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detect…

Lo Statuto speciale siciliano nell'attuale continenza storico-istituzionale

Il contributo valuta il senso dell'autonomia speciale siciliana trascorsi vent'anni dall'entrata in vigore della legge costituzionale n. 3 del 2001

The ASY-EOS experiment at GSI: Investigating the symmetry energy at supra-saturation densities

The elliptic-flow ratio of neutrons with respect to protons in reactions of neutron rich heavy-ions systems at intermediate energies has been proposed as an observable sensitive to the strength of the symmetry term in the nuclear Equation Of State (EOS) at supra-saturation densities. The recent results obtained from the existing FOPI/LAND data for $^{197}$Au+$^{197}$Au collisions at 400 MeV/nucleon in comparison with the UrQMD model allowed a first estimate of the symmetry term of the EOS but suffer from a considerable statistical uncertainty. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI la…

Quale futuro per l'autonomia speciale della Regione Siciliana?

Il contributo affronta il tema delle regioni speciali nella prospettiva delle riforme costituzionali

Il progetto FARCOS/EXOCHIM

Mapping the detector response of the FARCOS Double – Sided Silicon Strip Detectors with monochromatic single protons

Dalla frammentazione del neck alla fissione dinamica: gli esperimenti TimeScale e InKiIsSy al LNS

Emission of fragments in Ca+Ca reaction at 25 MeV/nucleon

We discuss experimental data concerning 40,48Ca+ 40,48Ca reactions at 25 MeV/nucleon; the 4π multi-detector Chimera has been used as detection device. Effects that can be attributed to the neutron to proton ratios (N/Z) degree of freedom have been investigated. From the analysis of experimental data it seems that the neutron richness of the interacting system plays an important role on the evolution of fusion-like sources formed in semi-central collisions. In particular, it is observed that the larger is the neutron content and the larger is the emission of heavy residues. Experimental data have been compared with CoMD-II model calculations; a moderately stiff symmetry energy should be used…

"Table 1" of "Electromagnetic fission of U-238 at 600-MeV and 1000-MeV per nucleon"

Electromagnetic fission.