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NSR database version of May 24, 2024.

Search: Author = L.Fortunato

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2024FO02      Few-Body Systems 65, 1 (2024)


Detailed Studies of 12C Structure and Reactions

NUCLEAR REACTIONS 12C(α, α), E not given; calculated densities and decomposition in spherical harmonics components of the ground state and Hoyle state as a function of the radius, form factor, σ(θ), J, π. Comparison with available data.

doi: 10.1007/s00601-023-01870-5
Citations: PlumX Metrics

2023MO05      Eur.Phys.J. A 59, 37 (2023)

H.Moriya, W.Horiuchi, J.Casal, L.Fortunato

Three-α configurations of the second Jp = 2+ state in 12C

NUCLEAR STRUCTURE 12C; calculated level energies, J, π, spectroscopic factors, three-α configurations. The three-body Schrodinger equation with orthogonality conditions solution.

doi: 10.1140/epja/s10050-023-00947-3
Citations: PlumX Metrics

2022SI04      Phys.Rev. C 105, 014328 (2022)

G.Singh, J.Singh, J.Casal, L.Fortunato

Exploring the halo character and dipole response in the dripline nucleus 31F

NUCLEAR STRUCTURE 30F; calculated phase shifts. 31F; calculated matter radius, nn distance, core-nn distance, E1 sum rule, contribution by different energy orbitals in different configurations for the ground state, ground state probability density distributions for all the configurations. 19,20,21,22,23,24,25,26,27,28,29,30,31,32F; calculated matter radii. Analytical, transformed harmonic oscillator basis under the aegis of a hyperspherical formalism for the ground-state three-body wave function of 31F, with the nn interaction defined by the Gogny-Pires-Tourreil potential. Comparison with available experimental data.

doi: 10.1103/PhysRevC.105.014328
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2021BO07      Eur.Phys.J. A 57, 2 (2021); Erratum Eur.Phys.J. A 57, 292 (2021)

M.Boyukata, C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

Unexpected transitional paths in the prolate to oblate shape phase transitions for Bose-Fermi systems

doi: 10.1140/epja/s10050-020-00308-4
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2021CA09      Eur.Phys.J. A 57, 33 (2021)

J.Casal, L.Fortunato, E.G.Lanza, A.Vitturi

Alpha-induced inelastic scattering and alpha-transfer reactions in 12C and 16O within the Algebraic Cluster Model

NUCLEAR REACTIONS 12C, 16O(α, α'), (α, X), E=240, 130 MeV; analyzed available data; deduced σ(θ), Rutherford ratio, J, π within the molecular cluster model based on "pre-formed" alpha particles. Comparison with available data.

doi: 10.1140/epja/s10050-021-00347-5
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2021VA02      Eur.Phys.J. A 57, 95 (2021)

E.Vardaci, P.K.Rath, M.Mazzocco, A.Di Nitto, G.La Rana, C.Parascandolo, D.Pierroutsakou, M.Romoli, A.Boiano, A.Vanzanella, M.Cinausero, G.Prete, N.Gelli, F.Lucarelli, C.Mazzocchi, M.La Commara, L.Fortunato, A.Guglielmetti, F.Soramel, L.Stroe, C.Signorini

Study of the threshold anomaly effect in the reaction 7Li + 208Pb at energies around the Coulomb barrier

NUCLEAR REACTIONS 208Pb(7Li, 7Li), E=25-39 MeV; measured reaction products; deduced σ, yields, real and imaginary potentials.

doi: 10.1140/epja/s10050-021-00400-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2558.

2020CA29      Phys.Rev. C 102, 064627 (2020)

J.Casal, J.Singh, L.Fortunato, W.Horiuchi, A.Vitturi

Electric dipole response of low-lying excitations in the two-neutron halo nucleus 29F

NUCLEAR STRUCTURE 29F; calculated convergence of the ground-state energy as a function of hypermomentum Kmax and number of basis functions N, ground-state probability density using three-body model 27F+n+n, convergence of B(E1) distribution as function of Kmax, B(E1) distribution as a function of the continuum energy, energies of the 0+, 1-, and 2+ states; deduced two-neutron halo for 29F. Hyperspherical harmonics expansion formalism.

NUCLEAR REACTIONS 208Pb(29F, X), E=235 MeV/nucleon; calculated B(E1) distribution as a function of the continuum energy. 120Sn(29F, X), E=84 MeV; calculated form factors for quadrupole couplings involving the bound states, monopole, dipole, and quadrupole couplings connecting the ground state with continuum pseudostates, σ(θ), B(E1) distributions. Glauber-model calculations for high-energy reactions, and four-body continuum-discretized coupled-channels (CDCC) calculations at low energy.

doi: 10.1103/PhysRevC.102.064627
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2020FO02      Eur.Phys.J. A 56, 49 (2020)

L.Fortunato, C.E.Alonso, J.M.Arias, J.Casal, K.Hagino, J.A.Lay, E.G.Lanza, S.M.Lenzi, J.Lubian, T.Oishi, F.Perez-Bernal

An overview of the scientific contribution of Andrea Vitturi to nuclear physics

doi: 10.1140/epja/s10050-020-00034-x
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2020FO12      Commun. Phys. 3, 132 (2020)

L.Fortunato, J.Casal, W.Horiuchi, J.Singh, A.Vitturi

The 29F nucleus as a lighthouse on the coast of the island of inversion

NUCLEAR STRUCTURE 27,28,29F; analyzed available data; deduced phase shifts, ground-state probability density, estimate of relativistic Coulomb excitation σ.

doi: 10.1038/s42005-020-00402-5
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2020SI06      Phys.Rev. C 101, 024310 (2020)

J.Singh, J.Casal, W.Horiuchi, L.Fortunato, A.Vitturi

Exploring two-neutron halo formation in the ground state of 29F within a three-body model

NUCLEAR STRUCTURE 29F; calculated configuration mixing, matter radius as function of S(2n), probability density for the ground state using three-body (27F+n+n) calculations with hyperspherical formalism, analytical transformed harmonic oscillator basis, and Gogny-Pires-Tourreil (GPT) nn interaction; deduced presence of a moderate halo structure in the ground state. Comparison with available experimental data.

doi: 10.1103/PhysRevC.101.024310
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2020VI01      Phys.Rev. C 101, 014315 (2020)

A.Vitturi, J.Casal, L.Fortunato, E.G.Lanza

Transition densities and form factors in the triangular α-cluster model of 12C with application to 12C + α scattering

NUCLEAR STRUCTURE 12C; calculated B(E2) for first and second 2+ and first excited 0+ states, B(E3) for first and second 3- states, B(E4) for first 4+, and E0 transition probability for first excited 0+, rms radius, transition densities using equilateral triangular arrangement in the Algebraic Cluster Model; analyzed the ground state, the symmetric vibration (Hoyle state), and the asymmetric bend vibration in a molecular approach. Comparison with available experimental data.

NUCLEAR REACTIONS 12C(α, α'), E=240 MeV; calculated form factors for the first 2+, and the second 2+ built on the top of first excited Hoyle state in 12C, differential σ(θ) using the transition densities calculated in the triangular α-cluster model. Comparison with experimental data taken from EXFOR and other literature.

doi: 10.1103/PhysRevC.101.014315
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2019AL29      Eur.Phys.J.Plus 134, 570 (2019)

M.Alimohammadi, L.Fortunato, A.Vitturi

Is 198Hg a soft triaxial nucleus with γ = 30 degrees ?

NUCLEAR STRUCTURE 198Hg; analyzed available data; calculated contour plots, energy levels, J, π. Comparison with experimental data.

doi: 10.1140/epjp/i2019-12923-4
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2019FO07      Phys.Rev. C 99, 031302 (2019)


Establishing the geometry of α clusters in 12C through patterns of polarized γ rays

NUCLEAR STRUCTURE 12C; calculated geometric configurations of α-cluster shape; discussed potential patterns for future γ-ray nuclear fluorescence experiments at the upcoming ELI-NP facility to measure depolarization ratio of out coming photons.

doi: 10.1103/PhysRevC.99.031302
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2019SI29      Few-Body Systems 60, 50 (2019)

J.Singh, W.Horiuchi, L.Fortunato, A.Vitturi

Two-Neutron Correlations in a Borromean 20C + n + n System: Sensitivity of Unbound Subsystems

NUCLEAR STRUCTURE 22C; analyzed available data; deduced components of the ground state, two-particle density, total E1 strength distribution, total monopole transition strength distribution.

doi: 10.1007/s00601-019-1518-8
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2018OI02      Acta Phys.Pol. B49, 293 (2018)

T.Oishi, L.Fortunato

Time-dependent Method for Many-body Problems and Its Application to Nuclear Resonant Systems

doi: 10.5506/aphyspolb.49.293
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2018OI03      J.Phys.(London) G45, 105101 (2018)

T.Oishi, L.Fortunato, A.Vitturi

Two-fermion emission from spin-singlet and triplet resonances in one dimension

doi: 10.1088/1361-6471/aad8f8
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2017FO03      Few-Body Systems 58, 19 (2017)

L.Fortunato, G.Stellin, A.Vitturi

Electromagnetic Selection Rules for 12C in a 3 α Cluster Model

NUCLEAR STRUCTURE 12C; analyzed available data; deduced selection rules for E1, E2, E3, M1, M2, M3 transitions.

doi: 10.1007/s00601-016-1184-z
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2016LA17      J.Phys.(London) G43, 085103 (2016)

J.A.Lay, C.E.Alonso, L.Fortunato, A.Vitturi

Continuum discretised BCS approach for weakly bound nuclei

NUCLEAR STRUCTURE 16,18,20,22,24,26,28O, 12,14,16,18,20,22,24C; calculated two-neutron separation energy, pairing strength, density of occupation. Comparison with experimental data.

doi: 10.1088/0954-3899/43/8/085103
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2016SI05      Acta Phys.Pol. B47, 833 (2016)

J.Singh, L.Fortunato

New Experiments Demand for a More Precise Analysis of Continuum Spectrum in 6He: Technical Details and Formalism

NUCLEAR STRUCTURE 5,6He; calculated 5He sd-continuum waves, coefficients of ground and continuum states of 6He.

doi: 10.5506/APhysPolB.47.833
Citations: PlumX Metrics

2016SI19      Eur.Phys.J. A 52, 209 (2016)

J.Singh, L.Fortunato, A.Vitturi, R.Chatterjee

Electric multipole response of the halo nucleus 6He

NUCLEAR STRUCTURE 6He; calculated halo nucleus configuration of 0+1 gs, radius, mean-square distance between valence neutrons, distance between their centre and the core, monopole E0, dipole E1, octupole E3 transition strength distributions, B(E1), B(E3), levels, J, π. Model using different continuum components of weakly bound 6He halo nucleus with unbound 5He spd waves. Compared with published calculations.

doi: 10.1140/epja/i2016-16209-8
Citations: PlumX Metrics

2016ST17      J.Phys.(London) G43, 085104 (2016)

G.Stellin, L.Fortunato, A.Vitturi

Electromagnetic selection rules in the triangular α-cluster model of 12C

NUCLEAR STRUCTURE 12C; calculated energy levels, J, π, bands, transitions.

doi: 10.1088/0954-3899/43/8/085104
Citations: PlumX Metrics

2014FO20      Phys.Rev. C 90, 064301 (2014)

L.Fortunato, R.Chatterjee, J.Singh, A.Vitturi

Pairing in the continuum: The quadrupole response of the Borromean nucleus 6He

NUCLEAR STRUCTURE 6He; calculated levels, J, π, B(E2) strength distribution, Borromean character of the bound ground state. Shell model calculations in a basis of two-particle states built out of continuum p states of the unbound 5He nucleus, and using a simple pairing contact-delta interaction. Comparison with experimental results.

doi: 10.1103/PhysRevC.90.064301
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2014LA08      Phys.Rev. C 89, 034618 (2014)

J.A.Lay, L.Fortunato, A.Vitturi

Investigating nuclear pairing correlations via microscopic two-particle transfer reactions: The cases of 112Sn, 32Mg, and 68Ni

NUCLEAR REACTIONS 110Sn(t, p), E=15.7 MeV; 110Sn(18O, 16O), (14C, 12C), E not given; 30Mg(t, p), E=5.4 MeV; 30Mg(18O, 16O), E=26 MeV; 64Ni(t, p), E=7.8 MeV; 64Ni(14C, 12C), E=32.4 MeV; analyzed σ(θ) for 2-neutron transfer reactions by zero-range distorted wave Born approximation (DWBA). Shell evolution for exotic nuclei.

doi: 10.1103/PhysRevC.89.034618
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2013BL07      Phys.Rev. C 88, 014318 (2013)

N.Blasi, L.Guerro, A.Saltarelli, O.Wieland, L.Fortunato

E0 decay from the first excited 0+ state in 162Yb

RADIOACTIVITY 162Lu(β+), (EC)[from 147Sm(19F, 4n), E=95 MeV]; measured Eγ, Iγ, conversion electrons at the INFN, LNS facility in Catania. 162Yb; deduced levels, J, π, X(E0/E2), multipolarity, internal conversion coefficients. 159,161Ho, 161,163Tm, 162Er; measured Eγ, Iγ, ce. Comparison with calculations using IBA-1 model.

NUCLEAR STRUCTURE 160,162,164,166,168Yb; calculated isotope shifts and X(E0/E2) for 2+, 4+ yrast states and 0+, 2+ members of β band using the IBA-1 model. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.014318
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012GI02      Phys.Rev. C 86, 034311 (2012)

A.Giannatiempo, L.Fortunato, A.Vitturi

Spherical to prolate axially symmetric shape transition, Uπν(5) → SUπν(3), in the interacting boson model IBA-2

NUCLEAR STRUCTURE 144,146,148,150,152,154,156Nd; calculated levels, J, π, ground-state, quasi-β, and quasi-γ bands, potential energy surface contours, levels, B(E2) using IBA-2 model. Comparison with X(5) model predictions, and with experimental data.

doi: 10.1103/PhysRevC.86.034311
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2012PR14      J.Phys.:Conf.Ser. 381, 012062 (2012)

M.G.Procter, D M.Cullen, P.Ruotsalainen, T.Braunroth, A.Dewald, C.Fransen, T.Grahn, P.T.Greenlees, M.Hackstein, K.Hauschild, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, A.Lopez-Martens, M.Leino, J.Litzinger, P.J.R.Mason, P.Nieminen, P.Peura, P.Rahkila, M.W.Reed, S.Rice, S.Rinta-Antilla, W.Rother, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, M.J.Taylor, J.Uusitalo, A.Vitturi, L.Fortunato, Y.Shi, F.R.Xu

X(5) critical-point symmetries in 138Gd

NUCLEAR REACTIONS 106Cd(36Ar, 2n2p), E=190 MeV; measured Eγ, Iγ(θ), γγ-coin using JUROGAM II; deduced T1/2, B(E2), deformation, symmetries using RDDS (Recoil-Distance Doppler-shift) with DDCM (Differential Decay Curve Method); calculated potential energy surface, deformation, transition probabilities using IBM-1. Experimental lifetimes compared with those by Bishop.

doi: 10.1088/1742-6596/381/1/012062
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2011FO03      Int.J.Mod.Phys. E20, 207 (2011)

L.Fortunato, C.E.Alonso, J.M.Arias, M.Boyukata, A.Vitturi

Odd nuclei and shape phase transitions: The role of the unpaired Fermion

doi: 10.1142/S0218301311017533
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2011FO09      Phys.Rev. C 84, 014326 (2011)

L.Fortunato, C.E.Alonso, J.M.Arias, J.E.Garcia-Ramos, A.Vitturi

Phase diagram for a cubic- Q interacting boson model Hamiltonian: Signs of triaxiality

doi: 10.1103/PhysRevC.84.014326
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2011MA86      J.Phys.:Conf.Ser. 312, 082032 (2011)

M.Mazzocco, C.Signorini, D.Pierroutsakou, T.Glodariu, A.Boiano, C.Boiano, F.Farinon, P.Figuera, D.Filipescu, L.Fortunato, A.Guglielmetti, G.Inglima, M.La Commara, M.Lattuada, P.Lotti, C.Mazzocchi, P.Molini, A.Musumarra, A.Pakou, C.Parascandolo, N.Patronis, M.Romoli, M.Sandoli, V.Scuderi, F.Soramel, L.Stroe, D.Torresi, E.Vardaci, A.Vitturi

Strong reaction channels for the system 17F + 58Ni at Coulomb barrier energies

NUCLEAR REACTIONS 58Ni(17F, X), (17F, 17F'), E=54.1, 58.5 MeV; measured E(charged particles), I(charged particles, θ); deduced quasi-elastic σ(θ), charged reaction energy spectra at θ=34, 41, 76, 870; calculated quasi-elastic σ(θ), breakup σ(θ) using optical model.

doi: 10.1088/1742-6596/312/4/082032
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2010BO08      Phys.Rev. C 82, 014317 (2010)

M.Boyukata, C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

Shape phase transition in odd-even nuclei: From spherical to deformed γ-unstable shapes

doi: 10.1103/PhysRevC.82.014317
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2010MA45      Nucl.Phys. A834, 488c (2010)

M.Mazzocco, A.Boiano, C.Boiano, A.Di Pietro, F.Farinon, P.Figuera, D.Filipescu, L.Fortunato, T.Glodariu, A.Guglielmetti, G.Inglima, M.La Commara, M.Lattuada, C.Mazzocchi, P.Molini, A.Musumarra, A.Pakou, C.Parascandolo, N.Patronis, D.Pierroutsakou, M.Romoli, M.Sandoli, V.Scuderi, C.Signorini, F.Soramel, L.Stroe, D.Torresi, E.Vardaci, A.Vitturi

Scattering of 17F nuclei from a 58Ni target at energies around the Coulomb barrier

NUCLEAR REACTIONS 58Ni(17F, 17F), (17F, 17F'), (17F, p16O), E=54.1, 58.5 MeV; measured σ(θ) using EXODET array; analyzed "reduced" σ. Calculations using coupled-channels code FRESCO. Comparisons with 58Ni(16O, 16O) and 64Zn(16O, 16O). Secondary radioactive beams.

doi: 10.1016/j.nuclphysa.2010.01.073
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2010MA62      Phys.Rev. C 82, 054604 (2010)

M.Mazzocco, C.Signorini, D.Pierroutsakou, T.Glodariu, A.Boiano, C.Boiano, F.Farinon, P.Figuera, D.Filipescu, L.Fortunato, A.Guglielmetti, G.Inglima, M.La Commara, M.Lattuada, P.Lotti, C.Mazzocchi, P.Molini, A.Musumarra, A.Pakou, C.Parascandolo, N.Patronis, M.Romoli, M.Sandoli, V.Scuderi, F.Soramel, L.Stroe, D.Torresi, E.Vardaci, A.Vitturi

Reaction dynamics for the system 17F+58Ni at near-barrier energies

NUCLEAR REACTIONS 58Ni(17F, X), [17F secondary beam from 1H(17O, 17F), E=100 MeV primary reaction], E=54.1, 58.5 MeV; measured charged-particle spectra, quasi-elastic differential σ(θ). Monte-Carlo simulations. Analysis within the framework of the optical model using FRESCO code to deduce the reaction cross section and to investigate the role played by inelastic excitations to excited states in 17F and 58Ni, proton-stripping channel to levels in 59Cu, and the breakup process of 17F to 16O+p.

doi: 10.1103/PhysRevC.82.054604
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2009AL04      Phys.Rev. C 79, 014306 (2009)

C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

UBF(5) to SUBF(3) shape phase transition in odd nuclei for j=1/2, 3/2, and 5/2 orbits: The role of the odd particle at the critical point

doi: 10.1103/PhysRevC.79.014306
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2009IN02      Phys.Rev. C 80, 034321 (2009)

I.Inci, C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

Coherent state approach to the interacting boson model: Test of its validity in the transitional region

doi: 10.1103/PhysRevC.80.034321
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2009MA11      Eur.Phys.J. A 39, 107 (2009)

A.Mason, R.Chatterjee, L.Fortunato, A.Vitturi

Electric and magnetic response to the continuum for A = 7 isobars in a dicluster model

NUCLEAR STRUCTURE 7Li, 7Be; calculated radius, magnetic moment, B(E2), B(M1), differential reduced transition probability. Comparison with data.

NUCLEAR REACTIONS 7Li, 7Be(γ, α), E not given; calculated dissociation σ. 3H, 3He(α, γ), E not given; analyzed S-factor and radiative capture σ.

doi: 10.1140/epja/i2008-10685-3
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2008AL23      Phys.Rev. C 78, 017301 (2008)

C.E.Alonso, J.M.Arias, L.Fortunato, N.Pietralla, A.Vitturi

Population of mixed-symmetry states via α transfer reactions

doi: 10.1103/PhysRevC.78.017301
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2008CH08      Eur.Phys.J. A 35, 213 (2008)

R.Chatterjee, L.Fortunato, A.Vitturi

Role of higher multipole excitations in the electromagnetic dissociation of one-neutron halo nuclei

NUCLEAR REACTIONS 208Pb(11Be, n10Be), E=10, 20, 30, 72, 400 MeV/nucleon; 208Pb(19C, n18C), E=67 MeV/nucleon; calculated relative energy spectra, σ, σ(θ) using finite-range DWBA and first-order Coulomb dissociation models.

doi: 10.1140/epja/i2007-10538-7
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2008FO07      Int.J.Mod.Phys. E17, 2124 (2008)


Dynamical symmetries of BEC: exact energy formulas and an application to alpha-conjugate nuclei

NUCLEAR STRUCTURE 12C, 16O; calculated the energy of α-condensed states. U(1) algebraic formalism.

doi: 10.1142/S0218301308011203
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2008MA57      Int.J.Mod.Phys. E17, 2310 (2008)

A.Mason, R.Chatterjee, L.Fortunato, A.Vitturi

Electric and magnetic properties for dicluster nuclei 7Li and 7Be

NUCLEAR STRUCTURE 7Li, 7Be; calculated radii, dipole magnetic moments, B(E2), B(M1), s-factors. Energy Weighted Molecular Sum Rules (EWMSR) checks.

doi: 10.1142/S0218301308011525
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2007CL03      Nucl.Phys. A787, 524c (2007)

R.M.Clark, A.O.Macchiavelli, L.Fortunato, R.Krucken

Transition from Vibrational to Rotational Regimes in the Pairing Phase

NUCLEAR STRUCTURE 186,188,190,192,194,196,198,200,202,204,206,208Pb; calculated neutron pair energy. Comparison with data.

doi: 10.1016/j.nuclphysa.2006.12.080
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2007FO08      Phys.Rev. C 76, 014316 (2007)

R.Fossion, C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

Shape-phase transitions and two-particle transfer intensities

doi: 10.1103/PhysRevC.76.014316
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2007FO11      Eur.Phys.J. Special Topics 150, 107 (2007)

L.Fortunato, R.M.Clark, A.O.Macchiavelli, R.Krucken

Probing the pairing-phase transition with pair-transfer reactions in unstable nuclei

doi: 10.1140/epjst/e2007-00279-3
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2007MA90      Eur.Phys.J. Special Topics 150, 37 (2007)

M.Mazzocco, C.Signorini, M.Romoli, R.Bonetti, A.De Francesco, A.De Rosa, M.Di Pietro, L.Fortunato, T.Glodariu, A.Guglielmetti, G.Inglima, T.Ishikawa, H.Ishiyama, R.Kanungo, N.Khai, S.Jeong, M.La Commara, B.Martin, H.Miyatake, T.Motobayashi, T.Nomura, D.Pierroutsakou, M.Sandoli, F.Soramel, L.Stroe, I.Sugai, M.H.Tanaka, E.Vardaci, Y.Watanabe, A.Yoshida, K.Yoshida

Elastic scattering for the system 11Be + 209Bi at Coulomb barrier energies

NUCLEAR REACTIONS 209Bi(11Be, 11Be), E=38-50 MeV; measured elastic scattering σ(θ). Compared results to model calculations. Deduced reaction and fusion cross sections.

doi: 10.1140/epjst/e2007-00260-2
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2145.

2006CL01      Phys.Rev.Lett. 96, 032501 (2006)

R.M.Clark, A.O.Macchiavelli, L.Fortunato, R.Krucken

Critical-Point Description of the Transition from Vibrational to Rotational Regimes in the Pairing Phase

NUCLEAR STRUCTURE 202,204,206,208Pb; analyzed neutron pair energy, transition from vibrational to rotational regime. Analytic solution.

doi: 10.1103/PhysRevLett.96.032501
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2006DE13      Nucl.Phys. A769, 16 (2006)

S.De Baerdemacker, L.Fortunato, V.Hellemans, K.Heyde

Solution of the Bohr Hamiltonian for a periodic potential with minimum at γ=π/6

doi: 10.1016/j.nuclphysa.2006.01.016
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2006FO09      Phys.Rev. C 74, 014310 (2006)

L.Fortunato, S.De Baerdemacker, K.Heyde

Solution of the Bohr Hamiltonian for soft triaxial nuclei

NUCLEAR STRUCTURE 172,174,176,178,180,184,186,188,190,192Os; calculated band-head energies, deformation, related parameters. 188,192Os; calculated levels, J, π. Bohr-Mottelson model, comparison with data and previous calculations.

doi: 10.1103/PhysRevC.74.014310
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2005AL46      Phys.Rev. C 72, 061302 (2005)

C.E.Alonso, J.M.Arias, L.Fortunato, A.Vitturi

Phase transitions in the interacting boson fermion model: The γ-unstable case

doi: 10.1103/PhysRevC.72.061302
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2005FO15      Eur.Phys.J. A 26, 33 (2005)

L.Fortunato, A.Vitturi

Electromagnetic response and breakup of light weakly bound nuclei in a dicluster model

NUCLEAR STRUCTURE 7Li; calculated radius, quadrupole moment, transitions B(E2), B(M1), form factors. Dicluster model.

NUCLEAR REACTIONS 165Ho(7Li, tα), E(cm)=40 MeV; calculated breakup σ, Q-value distributions. 208Pb(7Li, tα), E=48 MeV; calculated breakup σ. Dicluster model.

doi: 10.1140/epja/i2005-10118-y
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2005FO16      Eur.Phys.J. A 25, Supplement 1, 439 (2005)

L.Fortunato, S.De Baerdemacker, K.Heyde

Soft triaxial rotor in the vicinity of γ = π/6 and its extensions

doi: 10.1140/epjad/i2005-06-018-0
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2005FO18      Eur.Phys.J. A 26, Supplement 1, 1 (2005)


Solutions of the Bohr Hamiltonian, a compendium

doi: 10.1140/epjad/i2005-07-115-8
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2004FO04      Phys.Rev. C 70, 011302 (2004)


Soft triaxial rotovibrational motion in the vicinity of γ = π/6

doi: 10.1103/PhysRevC.70.011302
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2004MA99      Nucl.Phys. A746, 497c (2004)

M.Mazzocco, P.Scopel, C.Signorini, L.Fortunato, F.Soramel, I.J.Thompson, A.Vitturi, M.Barbui, A.Brondi, M.Cinausero, D.Fabris, E.Fioretto, G.La Rana, M.Lunardon, R.Moro, A.Ordine, G.F.Prete, V.Rizzi, L.Stroe, M.Trotta, E.Vardaci, G.Viesti

6Li breakup from 208Pb target at Coulomb barrier energies: doorway to reaction mechanism induced by loosely bound/halo nuclei

NUCLEAR REACTIONS 208Pb(6Li, dα), (6Li, npα), E=31, 33, 35, 39 MeV; measured particle spectra, excitation energy distributions; deduced breakup mechanism features.

doi: 10.1016/j.nuclphysa.2004.09.076
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2003DA16      Nucl.Phys. A724, 85 (2003)

C.H.Dasso, L.Fortunato, E.G.Lanza, A.Vitturi

On the excitation of double giant resonances in heavy ion reactions

NUCLEAR REACTIONS 208Pb(40Ar, 40Ar'), E=0-400 MeV; calculated excitation probabilities for single- and double-phonon giant resonances, nuclear and Coulomb contributions.

doi: 10.1016/S0375-9474(03)01479-9
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2003FO08      J.Phys.(London) G29, 1341 (2003)

L.Fortunato, A.Vitturi

Analytically solvable potentials for γ-unstable nuclei

doi: 10.1088/0954-3899/29/7/302
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2003FO12      Yad.Fiz. 66, 1491 (2003); Phys.Atomic Nuclei 66, 1445 (2003)


Study of Giant Pairing Vibrations with Neutron-Rich Nuclei

NUCLEAR STRUCTURE 116Sn, 208Pb; calculated giant pairing vibration energies. 40,48Ca, 90Zr, 116Sn, 208Pb; calculated pairing response functions.

NUCLEAR REACTIONS 116Sn, 208Pb(6He, α), (14C, 12C), E*=0-20 MeV; calculated σ, giant pair vibration widths.

doi: 10.1134/1.1601748
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2003FO20      Nucl.Phys. A722, 85c (2003)

L.Fortunato, A.Vitturi

Excitation of collective modes in neutron-rich and in weakly-bound nuclei

NUCLEAR STRUCTURE 16,28O, 40,60Ca; calculated isoscalar and isovector stregth distributions. 7Li; calculated B(E1), B(E2) distributions.

NUCLEAR REACTIONS 165Ho(7Li, X), E(cm)=40 MeV; calculated Q-value distribution for Coulomb breakup, dipole and quadrupole contributions.

doi: 10.1016/S0375-9474(03)01341-1
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2003FO23      Acta Phys.Hung.N.S. 18, 155 (2003)


Breakup and Electromagnetic Response of Light Weakly-Bound Dicluster Systems

NUCLEAR STRUCTURE 7Li; calculated dipole and quadrupole response functions, transitions B(E2). Cluster approach.

doi: 10.1556/APH.18.2003.2-4.6
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2003MA85      Eur.Phys.J. A 18, 583 (2003)

M.Mazzocco, P.Scopel, C.Signorini, L.Fortunato, F.Soramel, I.J.Thompson, A.Vitturi, M.Barbui, A.Brondi, M.Cinausero, D.Fabris, E.Fioretto, G.La Rana, M.Lunardon, R.Moro, A.Ordine, G.F.Prete, V.Rizzi, L.Stroe, M.Trotta, E.Vardaci, G.Viesti

Excitation of 6Li above the breakup threshold in the 6Li + 208Pb system around the Coulomb barrier

NUCLEAR REACTIONS 208Pb(6Li, 6Li'), (6Li, dα), E=31, 33, 35, 39 MeV; measured outgoing particles invariant mass spectra, σ(E, θ); deduced breakup mechanism features.Coupled-channels analysis.

doi: 10.1140/epja/i2003-10097-y
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2002FO08      Eur.Phys.J. A 14, 37 (2002)

L.Fortunato, W.von Oertzen, H.M.Sofia, A.Vitturi

Enhanced Excitation of Giant Pairing Vibrations in Heavy-Ion Reactions Induced by Weakly Bound Projectiles

NUCLEAR REACTIONS 116Sn, 208Pb(6He, α), E ≈ 40 MeV; 116Sn(14C, 12C), E=69 MeV; 208Pb(14C, 12C), E=95 MeV; calculated σ(E); deduced enhanced excitation of giant pairing vibrations.

doi: 10.1007/s10050-002-8787-0
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2001BA56      Phys.Rev. C64, 011302 (2001)

M.B.Barbaro, L.Fortunato, A.Molinari, M.R.Quaglia

Pairing Hamiltonian for One Pair of Identical Nucleons Bound in a Potential Well

doi: 10.1103/PhysRevC.64.011302
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