Now showing items 77-96 of 794

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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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      Backscattering measurement of 6He on 209Bi: Critical interaction distance  [Article]

      Guimarães, V.; Kolata, J. J.; Aguilera, E. F.; Howard, Alexander; Roberts, A.; Becchetti, F. D.; Mitchell, Alan J.; Moro Muñoz, Antonio Matías (American Physical Society, 2016)
      An elastic backscattering experiment has been performed at energies below the Coulomb barrier to investigate static and dynamic effects in the interaction of 6He with 209Bi. The measured cross sections are presented ...
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      Be 9 + Sn 120 scattering at near-barrier energies within a four-body model  [Article]

      Arazi, Andrés; Casal, Jesús; Rodríguez Gallardo, Manuela; Arias Carrasco, José Miguel; Lichtenthäler Filho, R.; Abriola, Daniel; Capurro, O. A.; Carnelli, P. F.F.; Fernndez Niello, J. O.; Martínez Heimman, D. (American Physical Society, 2018)
      Cross sections for elastic and inelastic scattering of the weakly bound Be9 nucleus on a Sn120 target have been measured at seven bombarding energies around and above the Coulomb barrier. The elastic angular distributions ...
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      Be 9 elastic scattering on Pb 208 and Al 27 within a four-body reaction framework  [Article]

      Casal, Jesús; Rodríguez Gallardo, Manuela; Arias Carrasco, José Miguel (American Physical Society, 2015)
      We investigate low-energy Be9 elastic scattering on two different targets (heavy, light) within a four-body framework using the continuum-discretized coupled-channels (CDCC) method. The Be9 projectile is described in an ...
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      Be-7- and B-8-reaction dynamics at Coulomb barrier energies  [Article]

      Lay Valera, José Antonio; Mazzocco, M.; Acosta, Luis; Fernández García, Juan Pablo; Martel, I.; Boiano, A.; Boiano, C.; Manea, C.; Sánchez Benítez, A. M.; Marquínez Durán, G. (EDP Sciences, 2016)
      We investigated the reaction dynamics induced by the Radioactive Ion Beams Be-7 and B-8 on a Pb-208 target at energies around the Coulomb barrier. The two measurements are strongly interconnected, being Be-7 (S-alpha = ...
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      Beam-Ion Acceleration during Edge Localized Modes in the ASDEX Upgrade Tokamak  [Article]

      Galdón-Quiroga, J.; García Muñoz, Manuel; McClements, K.G.; Nocente, M.; Hoelzl, M.; Jacobsen, A.S.; Orain, F.; Ribero-Rodríguez, J.F.; Salewski, M.; Sanchis-Sánchez, L.; Suttrop, W.; Viezzer, Eleonora (American Physical Society, 2018-07)
      The acceleration of beam ions during edge localized modes (ELMs) in a tokamak is observed for the first time through direct measurements of fast-ion losses in low collisionality plasmas. The accelerated beamion population ...
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      Bifurcation analysis and phase diagram of a spin-string model with buckled states  [Article]

      Ruiz García, M.; Bonilla, L. L.; Prados Montaño, Antonio (American Physical Society, 2017)
      We analyze a one-dimensional spin-string model, in which string oscillators are linearly coupled to their two nearest neighbors and to Ising spins representing internal degrees of freedom. String-spin coupling induces ...
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      Bilayered smectic phase polymorphism in the dipolar Gay-Berne liquid crystal model  [Article]

      Houssa Benzaida, Mohammed; Rull Fernández, Luis Felipe; Romero Enrique, José Manuel (AIP Publishing, 2009)
      We present computer simulations of the Gay–Berne model with a strong terminal dipole. We report the existence of different stable antiferroelectric interdigitated bilayered phases in this model with diverse in-plane ...
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      Binding-energy independence of reduced spectroscopic strengths derived from (p, 2p) and (p, pn) reactions with nitrogen and oxygen isotopes  [Article]

      Gómez Ramos, Mario; Moro Muñoz, Antonio Matías (ELSEVIER, 2018-08-30)
      A campaign of intermediate energy (300–450 MeV/u) proton-induced nucleon knockout measurements in inverse kinematics has been recently undertaken at the R 3 B/LAND setup at GSI. We present a systematic theoretical ...
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      Boltzmann kinetic equation for a strongly confined gas of hard spheres  [Article]

      Brey Abalo, José Javier; García de Soria Lucena, María Isabel; Maynar Blanco, Pablo (American Physical Society, 2017)
      A Boltzmann-like kinetic equation for a quasi-two-dimensional gas of hard spheres is derived. The system is confined between two parallel hard plates separated a distance between one and two particle diameters. An entropy ...
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      Boson expansion methods applied to a two-level model in the study of multiple giant resonances  [Article]

      Volpe, C.; Chomaz, Philippe; Andrés Martín, María Victoria; Catara, Francesco; Lanza, Edoardo G. (Elsevier, 1999-03-08)
      We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in analogy with previous microscopic calculations. We study the effects of different approximations ...
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      Boson-conserving one-nucleon transfer operator in the interacting boson model  [Article]

      Barea, J.; Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel (American Physical Society, 2002-03-01)
      The boson-conserving one-nucleon transfer operator in the interacting boson model (IBM) is reanalyzed. Extra terms are added to the usual form used for that operator. These new terms change generalized seniority by ...
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      Boundary conditions and normal state for a vibrated granular fluid  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José; Moreno Franco, Francisco (American Physical Society, 2000)
      The steady state of a fluidized granular system confined between a vibrating wall and a reflecting one is analyzed in detail. The relationship between the velocity of the wall and the hydrodynamic profiles is established. ...
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      Breakdown of hydrodynamics in the inelastic Maxwell model of granular gases  [Article]

      Brey Abalo, José Javier; García de Soria Lucena, María Isabel; Maynar Blanco, Pablo (American Physical Society, 2010)
      Both the right and left eigenfunctions and eigenvalues of the linearized homogeneous Boltzmann equation for inelastic Maxwell molecules corresponding to the hydrodynamic modes are calculated. Also, some nonhydrodynamic ...
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      Breakdown of the fluctuation-dissipation relations in granular gases  [Article]

      Brey Abalo, José Javier; García de Soria Lucena, María Isabel; Maynar Blanco, Pablo (IOP Publishing Ltd., 2008-10)
      A numerical molecular dynamics experiment measuring the two-time correlation function of the transversal velocity field in the homogeneous cooling state of a granular gas modeled as an ensemble of inelastic hard particles ...
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      Breakdown of the Z=8 shell closure in unbound 12O and its mirror symmetry  [Article]

      Mukha, I.; Suzuki, D.; Iwasaki, H.; Beaumel, D.; Nalpas, L.; Pollacco, E.; Assié, M.; Blumenfeld, Y. (American Physical Review, 2009-10-09)
      An excited state in the proton-rich unbound nucleus 12O was identified at 1.8(4) MeV via missing-mass spectroscopy with the 14O(p,t) reaction at 51  AMeV. The spin-parity of the state was determined to be 0+ or 2+ by ...
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      Breakup and n -transfer effects on the fusion reactions Li 6,7 + Sn 120,119 around the Coulomb barrier  [Article]

      Fisichella, M.; Shotter, A. C.; Figuera, P.; Lubian, J.; Di Pietro, A.; Fernández García, Juan Pablo; Ferreira, J. L.; Lattuada, M.; Lotti, P.; Musumarra, A. (American Physical Society, 2017)
      This paper presents values of complete fusion cross sections deduced from activation measurements for the reactions Li6+Sn120 and Li7+Sn119, and for a projectile energy range from 17.5 to 28 MeV in the center-of-mass system. ...
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      Breakup mechanisms in the He 6 + Zn 64 reaction at near-barrier energies  [Article]

      Fernández García, Juan Pablo; Di Pietro, Alessia; Figuera, Pierpaolo; Gómez Camacho, Joaquín José; Lattuada, M.; Lei, Jin; Moro Muñoz, Antonio Matías; Rodríguez Gallardo, Manuela; Scuderi, V. (American Physical Society, 2019)
      New experimental results for the elastic scattering of He6 on Zn64 at incident energies of 15.0 and 18.0 MeV and He4 at 17.5 MeV along with results already published at 10.0 and 13.6 MeV, are presented. Elastic and α ...
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      Breakup of 6Li + p at near-barrier energies and the effect on elastic scattering  [Article]

      Soukeras, V.; Pakou, A.; Cappuzzello, F.; Acosta, Luis; Agodi, C.; Alamanos, N.; Calabrese, S.; Carbone, D.; Cavallaro, M.; Cunsolo, A.; Di Pietro, A.; Fernández García, Juan Pablo (American Physical Society, 2017)
      Exclusive breakup measurements have been performed for the Li6+p system in inverse kinematics at Li6 incident energies of 25 and 29 MeV. The results are considered in the Continuum Discretized Coupled-Channels framework, ...
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      Bright fireballs associated with the potentially hazardous asteroid 2007LQ19  [Article]

      Madiedo Gil, José María; Cabrera Caño, Jesús María; Trigo Rodríguez, Josep Maria; Ortiz, José L.; Castro Tirado, Alberto J. (Oxford University Press, 2014)
      We analyse here two very bright fireballs produced by the ablation in the atmosphere of two large meteoroids in 2009 and 2010. These slow-moving and deep-penetrating events were observed over Spain in the framework of our ...