Browsing by Author "Andrés Martín, María Victoria"
Now showing items 1-20 of 35
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Article
Accidental degeneracy and hidden symmetry: Rectangular wells with commensurate sides
(American Association of Physics Teachers, 1998)Two-dimensional quantum square wells and rectangular billiards with commensurate sides are simple systems which ...
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Article
Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential
(American Association of Physics Teachers, 1997)The two-dimensional square-well potential is one of the simplest quantum-mechanical systems that exhibits accidental ...
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Article
Anharmonic vibrations in nuclei
(Elsevier, 2003-12-29)We show that the non-linearities of large amplitude motions in atomic nuclei induce giant quadrupole and monopole vibrations. ...
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Article
Boson expansion methods applied to a two-level model in the study of multiple giant resonances
(Elsevier, 1999-03-08)We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in ...
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Article
Coupling of Dipole Mode to γ -unstable Quadrupole Oscillations
(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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Article
Dynamical polarization potential due to the excitation of collective states
(American Physical Society, 1991)Within the Feshbach formalism we calculate the nucleus-nucleus dynamical polarization potential arising from the coupling ...
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Article
Elastic scattering and α -particle production in 6 He + 208 Pb collisions at 22 MeV
(American Physical Society, 2011)Experimental results of the elastic scattering of 6He on 208Pb at E LAB=22 MeV, measured at the CRC facility (Louvain-la-Neuve, ...
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Article
Excitation of multiple giant dipole resonances: From spherical to deformed nuclei
(Elsevier, 1999)The effect of deformation on the excitation of multiple giant dipole resonances is studied. Analytical expressions are ...
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Article
Excitations of pygmy dipole resonances in exotic and stable nuclei via Coulomb and nuclear fields
(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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Article
Experimental Study of the Pygmy Dipole Resonance in the 68Ni Nucleus
(Jagiellonian University, 2018)It is known that the low-energy E1 strength, known as the Pygmy Dipole Resonance (PDR), can be excited by both isovector ...
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Article
First measurement of the isoscalar excitation above the neutron emission threshold of the Pygmy Dipole Resonance in 68Ni
(North-Holland, 2018-07-10)The excitation of the Pygmy Dipole Resonance (PDR) in the 68Ni nucleus, above the neutron emission threshold, via an ...
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Article
Gamma ray detection with CHIMERA at LNS: results and perspectives
(IOP Publishing, 2020)We describe the use of the 4 CHIMERA charged particle detector as a large efficiency -ray detector. The CsI(Tl) stage ...
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Article
Geometric interpretation of the effect of the quadrupole force in the collisions of deformed nuclei
(American Physical Society, 1992)The effect of a quadrupole force on a set of degenerate states of a rotational band with arbitrary spin projection along ...
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Article
Importance of Giant-Resonance Excitation for the Surface Properties of the Heavy-Ion Optical Potential
(IOP Publishing Ltd., 1989-05-15)An imaginary potential associated with the inelastic excitation of the nuclei is computed in a multiphonon excitation model ...
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Final Degree Project
Introducción a la Mezcla de Configuraciones
(2017)En esta memoria vamos a usar el modelo de partículas independientes para obtener los niveles de energía y autofunciones ...
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Article
Isospin effects on reaction dynamics at Fermi energies
(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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Article
Long range absorption in the scattering of 6 He on 208 Pb and 197 Au at 27 MeV
(Elsevier, 2005)Quasi-elastic scattering of 6He at E_lab=27 MeV from 197Au has been measured in the angular range of 6-72 degrees in the ...
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Article
Microscopic calculations of double and triple giant resonance excitations in heavy ion collisions
(American Physical Society, 2006-12-01)We perform microscopic calculations of the inelastic cross sections for the double and triple excitation of giant resonances ...
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Article
Microscopic description of Coulomb and nuclear excitation of multiphonon states in 40 Ca + 40 Ca collisions
(American Physical Society, 2002-01-01)We calculate the inelastic scattering cross sections to populate one- and two-phonon states in heavy ion ...
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Article
Microscopic nuclear form factor for the pygmy dipole resonance
(EDP Sciences, 2016)Pygmy dipole resonance can be populated via isoscalar probes due to the strong mixing of isoscalar and isovector components. ...