Now showing items 1-20 of 70

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      197Au(n,γ) cross section in the resonance region  [Article]

      Massimi, Christian; Domingo Pardo, César; Vannini, Gianni; Audouin, Laurent; Guerrero Sánchez, Carlos; Abbondanno, U.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (The American Physical Society, 2010)
      The (n,γ) cross section of 197Au has been measured at n-TOF in the resolved resonance region, up to 5keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements ...
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      62 Ni(n, γ) and 63 Ni(n, γ) cross sections measured at the n_TOF facility at CERN  [Article]

      Lederer, C.; Massimi, Christian; Berthoumieux, E.; Colonna, Nicola; Dressler, R.; Guerrero Sánchez, Carlos; Žugec, P.; Cortés Giraldo, Miguel Antonio; Lozano Leyva, Manuel Luis; Praena Rodríguez, Javier; Quesada Molina, José Manuel (American Physical Society, 2014)
      The cross section of the 62Ni(n,γ) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n-TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy ...
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      A phenomenological imaginary part of the optical potential for heavy ions  [Article]

      Quesada Molina, José Manuel; Lozano Leyva, Manuel Luis; Madurga Lacalle, Gonzalo (Elsevier, 1983)
      The depth of the imaginary part of the optical potential is derived from the assumption that, at a given energy and for each partial wave L, it is proportional to the compound nucleus density level up to a given excitation ...
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      Analytical expressions for the dispersive contributions to the nucleon-nucleus optical potential  [Article]

      Quesada Molina, José Manuel; Capote, Roberto; Molina, A.; Lozano Leyva, Manuel Luis (American Physical Society, 2003-06-01)
      Analytical solutions of dispersion relations in the nucleon-nucleus optical model have been found for both volume and surface potentials. For the energy dependence a standard Brown-Rho function has been assumed for both ...
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      Application of Photon Strength Functions to (n,g ) measurements with the n_TOF TAC  [Presentation]

      Guerrero, Carlos; Abbondanno, U.; Aerts, G.; Calviño Tavares, Francisco; Capote Fuente, Raúl; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (Proceedings of Science, 2017-06)
      The neutron capture cross section measurements at the CERN n_TOF facility are performed using a new detection system, the segmented Total Absorption Calorimeter (TAC). All measurements are performed in reference to the ...
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      Astrophysics at n-TOF facility  [Presentation]

      Tagliente, G.; Abbondanno, U.; Aerts, G.; Capote Noy, Roberto; Lozano Leyva, Manuel Luis; Praena Rodríguez, Javier; Quesada Molina, José Manuel; Salgado, J.; Santos, Cayetano; Vaz, P.; Wisshak, Klaus (American Institute of Physics, 2010)
      Heavy elements with Z ≥ 30 are made by neutron capture reactions during stellar He burning and presumably in supernovae. This contribution deals mainly with the slow neutron capture (s) process which is responsible for ...
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      Backbending of Dy isotopes described with the neutron-photon IBA plus two-quasiparticle model  [Article]

      Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Lozano Leyva, Manuel Luis (Elsevier, 1986)
      The formalism of the neutron-photon interacting boson model, extended to include two-quasiparticle excitations, is used in a study of the high spin states of 154,156,158Dy isotropes. Good agreement is obtained between the ...
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      Coupled channel effects in the scattering of 6,7Li BY 58Ni  [Article]

      Gómez Camacho, Joaquín José; Lozano Leyva, Manuel Luis; Nagarajan, M. A. (Elsevier, 1985)
      Using a single-particle description of 6,7Li and Woods-Saxon generated wavefunctions for 58Ni matter density distribution, the diagonal and transition densities are calculated. Folding these densities with the M3Y effective ...
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      Critical radii for alpha-particle elastic scattering  [Article]

      Lozano Leyva, Manuel Luis; Madurga Lacalle, Gonzalo; Hodgson, P. E. (Elsevier, 1979)
      The critical radii obtained from analyses of the elastic scattering of alpha-particles by a range of nuclei are found to be closely connected with the nuclear matter distributions obtained by summing the squares of ...
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      Una descripción monoparticular de la estructura y reacciones de iones poco pesados  [PhD Thesis]

      Gómez Camacho, Joaquín José (1986)
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      Direct versus sequential four-particle transfer in heavy ion collisions with superfluid nuclei: Sn+Sn reaction  [Article]

      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 channel by a successive transfer of correlated nucleon pairs. A quantitative analysis is carried out ...
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      Dispersive contribution to the nucleus-nucleus potential  [Article]

      Lozano Leyva, Manuel Luis (American Physical Society, 1987)
      With a simple parametrization of the empirical imaginary potential depths, the real potential induced by a dispersion relation is calculated analytically for the elastic scattering of O16 by several target nuclei. Between ...
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      Dispersive spherical optical model of neutron scattering from 27 Al up to 250 MeV  [Article]

      Molina, A.; Capote, Roberto; Quesada Molina, José Manuel; Lozano Leyva, Manuel Luis (American Physical Society, 2002-03-01)
      A spherical optical model potential (OMP) containing a dispersive term is used to fit the available experimental database of s(u) and sT for n127Al covering the energy range 0.1–250 MeV using relativistickinematics ...
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      Double folding with a density-dependent effective interaction and its analytical approximation  [Article]

      Viñas, F. J.; Lozano Leyva, Manuel Luis; Madurga Lacalle, Gonzalo (American Physical Society, 1981)
      The real part of the optical potential for heavy ion elastic scattering is obtained by double folding of the nuclear densities with a density-dependent nucleon-nucleon effective interaction which was successful in describing ...
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      Dynamic effective potential for α-particle bound and quasibound states  [Article]

      Dasso, Carlos Hugo; Liotta, R. J.; Lozano Leyva, Manuel Luis (American Physical Society, 1996-09-01)
      We exploit analytic properties of the optical potential for elastic scattering of α particles on nuclei to extract information on the effective interaction that should be used to describe the motion of a cluster of two ...
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      Efecto Compton inverso inducido por electrones libres y fotones de la Radiación Cósmica de Fondo  [Final Degree Work]

      Agüera Rodríguez, Raquel (2018-07)
      En el proceso de dispersión de dos partículas podemos encontrar gran variedad de si- tuaciones distintas. Todas ellas dependen de factores como son sus masas, sus velocidades iniciales, y multitud de parámetros más. Nuestro ...
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      Efecto túnel cuántico en barreras exóticas de potencial  [Final Degree Work]

      Franco Patiño, Juan Manuel (2017)
      La aproximación WKB, nombrada así por los físicos Wentzel, Kramers y Brillouin que la desarrollaron a principio de los años 20, es un método utilizado para el cálculo aproximado de la función de onda de una partícula ...
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      Effect of elastic transfer in sub-barrier fusion between similar nuclei  [Article]

      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 to the elastic transfer channel is described in terms of a parity dependent potential, directly ...