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Listar por autor "Vitturi, Andrea"
Mostrando ítems 1-20 de 39
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Artículo
Coherent state approach to the interacting boson model: Test of its validity in the transitional region
Inci, I.; Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Fortunato, Lorenzo; Vitturi, Andrea (The American Physical Society, 2009)The predictive power of the coherent state (CS) approach to the interacting boson model (IBM) is tested far from the IBM ...
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Artículo
Continuum discretised BCS approach for weakly bound nuclei
Alonso Alonso, Clara Eugenia; Fortunato, Lorenzo; Vitturi, Andrea; Lay Valera, José Antonio (IOP Publishing, 2016)The Bardeen-Cooper-Schrieffer (BCS) formalism is extended by including the single-particle continuum in order to analyse ...
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Artículo
Coupling of Dipole Mode to γ -unstable Quadrupole Oscillations
Alonso Alonso, Clara Eugenia; Andrés Martín, María Victoria; Arias Carrasco, José Miguel; Lanza, Edoardo G.; Vitturi, Andrea (Elsevier, 2000)The coupling of the high-lying dipole mode to the low-lying quadrupole modes for the case of deformed γ-unstable nuclei ...
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Artículo
Critical-point symmetries in Boson-Fermion systems: The case of shape transitions in odd nuclei in a multiorbit model
Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Vitturi, Andrea (American Physical Review, 2007-02-05)We investigate phase transitions in boson-fermion systems. We propose an analytically solvable model [E(5/12)] to describe ...
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Artículo
Description of continuum structures in a discrete basis: Three-body resonances and two-nucleon decays
Casal Berbel, Jesús; Rodríguez Gallardo, Manuela; Arias Carrasco, José Miguel; Gómez Camacho, Joaquín José; Fortunato, Lorenzo; Vitturi, Andrea (SciPost, 2020)Weakly bound and unbound three-body nuclei are studied by using the pseudostate method within the hyperspherical formalism. ...
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Artículo
Direct reactions of weakly-bound nuclei within a one dimensional model
Moschini, Laura; Vitturi, Andrea; Moro Muñoz, Antonio Matías (Institute of Physics, 2018)A line of research has been developed to describe structure and dynamics of weakly-bound systems with one or more valence ...
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Artículo
Direct versus sequential four-particle transfer in heavy ion collisions with superfluid nuclei: Sn+Sn reaction
Dasso, Carlos Hugo; Lozano Leyva, Manuel Luis; Vitturi, Andrea (American Physical Society, 1988)The direct transfer of four nucleons in reactions with superfluid systems is compared with the feeding of the same final ...
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Artículo
Effect of elastic transfer in sub-barrier fusion between similar nuclei
Lozano Leyva, Manuel Luis; Vitturi, Andrea (American Physical Society, 1987)We study the effect of the elastic transfer process on sub-barrier fusion reactions between similar nuclei. The coupling ...
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Artículo
Elastic scattering of O-17+Pb-208 at energies near the Coulomb barrier
Lay Valera, José Antonio; Strano, E.; Mazzocco, M.; Molini, P.; Soramel, F.; Vitturi, Andrea; Boiano, A.; Boiano, C.; Torresi, D.; Manea, C. (EDP Sciences, 2016)Within the frame of the commissioning of a new experimental apparatus EXPADES we undertook the measurement of the elastic ...
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Excitations of pygmy dipole resonances in exotic and stable nuclei via Coulomb and nuclear fields
Lanza, Edoardo G.; Vitturi, Andrea; Andrés Martín, María Victoria; Catara, Francesco; Gambacurta, Danilo (American Physical Society, 2011)We study heavy-ion inelastic scattering processes in neutron-rich nuclei including the full response to the different ...
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Artículo
Importance of the single-particle continuum in BCS pairing with a pseudostate basis
Lay Valera, José Antonio; Alonso Alonso, Clara Eugenia; Fortunato, Lorenzo; Vitturi, Andrea (EDP Sciences, 2016)In a recent work [arXiv:1510.03185] the use of the Transformed Harmonic Oscillator (THO) basis for the discretization of ...
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Artículo
Intrinsic structure of two-phonon states in the interacting boson model
García Ramos, José Enrique; Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Isacker, Piet van; Vitturi, Andrea (Elsevier, 1998)A general study of excitations up to two-phonon states is carried out using the intrinsicstate formalism of the Interacting ...
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Artículo
Isospin effects on reaction dynamics at Fermi energies
Politi, Giuseppe; Acosta, Luis; Andrés Martín, María Victoria; Auditore, Lucrezia; Beck, Christian; Cap, Tomasz; Cardella, Giuseppe; Vitturi, Andrea (EDP Sciences, 2018)The study of nuclei properties and of collision dynamics is a very active research field whose result have implications ...
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Artículo
Microscopic nuclear form factor for the pygmy dipole resonance
Lanza, Edoardo G.; Vitturi, Andrea; Andrés Martín, María Victoria; Catara, Francesco (EDP Sciences, 2016)Pygmy dipole resonance can be populated via isoscalar probes due to the strong mixing of isoscalar and isovector components. ...
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Artículo
Microscopic nuclear form factors for the pygmy dipole resonance
Lanza, Edoardo G.; Vitturi, Andrea; Andrés Martín, María Victoria (American Physical Society, 2015)It is shown that the use of a proper form factor in the study of the pygmy dipole resonance (PDR) is of paramount importance ...
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Artículo
One-particle spectroscopic intensities as a signature of shape phase transition: The γ -unstable case
Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Vitturi, Andrea (American Physical Society, 2006-08-09)We investigate the evolution of one-particle spectroscopic intensities as a possible signature of shape phase transitions. ...
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Ponencia
Pairing interaction and reaction mechanism for one- and two-particle transfer reactions: a simple model in one dimension
Vitturi, Andrea; Moschini, Laura; Hagino, Kouichi; Moro Muñoz, Antonio Matías (AIP Publishing, 2015)We discuss the reaction mechanism associated with two-particle transfer reactions in a simple one-dimensional model. The ...
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Artículo
Phase diagram for a cubic-Q interacting boson model Hamiltonian: Signs of triaxiality
Fortunato, Lorenzo; Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; García Ramos, José Enrique; Vitturi, Andrea (American Physical Society, 2011)An extension of the Interacting Boson Model that includes the cubic (QI×QI×Q I)(0) term is proposed. The potential energy ...
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Artículo
Phase transitions in the interacting boson fermion model: The γ -unstable case
Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Fortunato, R.; Vitturi, Andrea (American Physical Society, 2005-01-11)The phase transition around the critical point in the evolution from spherical to deformed γ-unstable shapes is investigated ...
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Artículo
Population of mixed-symmetry states via α transfer reactions
Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Fortunato, Lorenzo; Pietralla, N.; Vitturi, Andrea (The American Physical Society, 2008)Within the neutron-proton interacting boson model we study the population of mixed-symmetry states via α transfer processes. ...