Thermodynamics of small superconductors with fixed particle number

The Variation After Projection approach is applied for the first time to the pairing hamiltonian to describe the thermodynamics of small systems with fixed particle number. The minimization of the free energy is made by a direct diagonalization of the entropy. The Variation After Projection applied at finite temperature provides a perfect reproduction of the exact canonical properties of odd or even systems from very low to high temperature.Comment: 4 pages, 3 figure

Excitation of Pygmy Dipole Resonance in neutron-rich nuclei via Coulomb and nuclear fields

We study the nature of the low-lying dipole strength in neutron-rich nuclei, often associated to the Pygmy Dipole Resonance. The states are described within the Hartree-Fock plus RPA formalism, using different parametrizations of the Skyrme interaction. We show how the information from combined reactions processes involving the Coulomb and different mixtures of isoscalar and isovector nuclear interactions can provide a clue to reveal the characteristic features of these states.Comment: 9 Pages, 8 figures, contribution to International Symposium On Nuclear Physics, December 8-12, 2009,Bhabha Atomic Research Centre, Mumbai, Indi

Lipid-lowering treatment and LDL-C goal attainment in high and very high cardiovascular risk patients: Evidence from the SANTORINI study-The Italian experience

The SANTORINI study is an observational study that enrolled 9602 adult individuals at high or very high cardiovascular (CV) risk across Europe, aimed at providing information on the current status of the management of dyslipidaemias, in light of the most recent 2019 EAS/ESC guidelines. Italy participated in the study with 1977 patients, 1531 (77.4%) of whom were classified at very high CV risk and 446 (22.6%) at high CV risk. Overall, in the Italian population, 79.31% of the patients had a history of atherosclerotic cardiovascular disease (ASCVD). At enrolment, the mean level of LDL-C in the total population was 98.4 mg/dL. LDL-C levels were lower in the very high-risk group (94.6 mg/dL) than in the high-risk group (111.4 mg/dL). Considering the therapeutic goals recommended by the most recent 2019 ESC/EAS guidelines (LDL-C <55 mg/dL or <70 mg/dL respectively in very high or high-risk patients, respectively), only 20.3% of the overall study population achieved such goals (19.9% of very high-risk patients and 21.8% of high-risk patients). About one-third of the patients included in the study (32.6%) were not prescribed any therapy, one-third received statin monotherapy (34.4%), and only one-third (33%) were taking combination therapy; these percentages were comparable in the two risk subgroups. Based on the most recent 2019 ESC/EAS guidelines, the use of cholesterol-lowering therapies is not always optimal to achieve the therapeutic goals even in patients with very high CV risk. This means that about 80% of patients are far from the recommended therapeutic goals for their risk category

Fine structure of the isoscalar giant quadrupole resonance in 40Ca due to Landau damping?

The fragmentation of the Isoscalar Giant Quadrupole Resonance (ISGQR) in 40Ca has been investigated in high energy-resolution experiments using proton inelastic scattering at E_p = 200 MeV. Fine structure is observed in the region of the ISGQR and its characteristic energy scales are extracted from the experimental data by means of a wavelet analysis. The experimental scales are well described by Random Phase Approximation (RPA) and second-RPA calculations with an effective interaction derived from a realistic nucleon-nucleon interaction by the Unitary Correlation Operator Method (UCOM). In these results characteristic scales are already present at the mean-field level pointing to their origination in Landau damping, in contrast to the findings in heavier nuclei and also to SRPA calculations for 40Ca based on phenomenological effective interactions, where fine structure is explained by the coupling to two-particle two-hole (2p-2h) states.Comment: Phys. Lett. B, in pres

A focus on selected perspectives of the NUMEN project

The use of double charge exchange reactions is discussed in view of their application to extract information that may be helpful to determinate the nuclear matrix elements entering in the expression of neutrinoless double beta decay half-life. The strategy adopted in the experimental campaigns performed at INFN - Laboratori Nazionali del Sud and in the analysis methods within the NUMEN project is briefly described, emphasizing the advantages of the multi-channel approach to nuclear reaction data analysis. An overview on the research and development activities on the MAGNEX magnetic spectrometer is also given, with a focus on the chosen technological solutions for the focal plane detector which will guarantee the performances at high-rate conditions

Recent results on heavy-ion direct reactions of interest for 0νββ decay at INFN LNS

Neutrinoless double beta decay of nuclei, if observed, would have important implications on fundamental physics. In particular it would give access to the effective neutrino mass. In order to extract such information from 0νββ decay half-life measurements, the knowledge of the Nuclear Matrix Elements (NME) is of utmost importance. In this context the NUMEN and the NURE projects aim to extract information on the NME by measuring cross sections of Double Charge Exchange reactions in selected systems which are expected to spontaneously decay via 0νββ. In this work an overview of the experimental challenges that NUMEN is facing in order to perform the experiments with accelerated beams and the research and development activity for the planned upgrade of the INFN-LNS facilities is reported

Polcenigo (PN). San Giovanni, località Sottocolle. “Necropoli di San Floriano”. Scavi 2006

Notiziario di scavo sulla necropoli tardo celtica. Prime valutazioni sul progetto di ricerca condotto dall’équipe della Soprintendenza del Friuli Venezia Giulia