Now showing items 761-780 of 787

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      U(5)-O(6) transition in the interacting boson model and the E(5) critical point symmetry  [Article]

      Arias Carrasco, José Miguel; Alonso Alonso, Clara Eugenia; Vitturi, Andrea; García Ramos, José Enrique; Dukelsky, Jorge; Frank, A. (American Physical Society, 2003-10-01)
      The relation of the recently proposed E(5) critical point symmetry with the interacting boson model is investigated. The large-N limit of the interacting boson model at the critical point in the transition ...
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      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  [Article]

      Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Fortunato, Lorenzo; Vitturi, Andrea (The American Physical Society, 2009)
      We investigate the phase transition in odd nuclei within the Interacting Boson Fermion Model in correspondence with the transition from spherical to stable axially deformed shape. The odd particle is assumed to be moving ...
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      Understanding 6He induced reactions at energies around the Coulomb barrier  [Article]

      Moro Muñoz, Antonio Matías; Acosta, Luis; Arias Carrasco, José Miguel; García Borge, María José; Escrig, D.; Gómez Camacho, Joaquín José; Martel, Ismael; Rodríguez Gallardo, Manuela; Sánchez Benítez, A. M.; Tengblad, Olof (American Institute of Physics, 2009)
      Recent developments aimed to understand the observed features arising in the scattering of the Borromean nucleus 6He on heavy targets are discussed and compared with recent data for 6He+208Pb measured at the RIB facility ...
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      Understanding an instability in vibrated granular monolayers  [Article]

      Maynar Blanco, Pablo; García de Soria Lucena, María Isabel; Brey Abalo, José Javier (American Physical Society, 2019)
      We investigate the dynamics of an ensemble of smooth inelastic hard spheres confined between two horizontal plates separated by a distance smaller than twice the diameter of the particles, in such a way that the system is ...
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      Understanding Low Energy Reaction With Exotic Nuclei  [Article]

      Nunes, Filomena M.; Summers, N.C.; Mukhamedzhanov, A. M.; Moro Muñoz, Antonio Matías (AIP Publishing, 2005)
      Recent developments on the understanding of low energy reactions are highlighted. Emphasis is given to the CDCC framework where the breakup channels of the projectile are included explicitly. Properties of the breakup ...
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      Uniform self-diffusion in a granular gas  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José (American Institute of Physics, 2013)
      A granular gas composed of inelastic hard spheres or disks in the homogeneous cooling state is considered. Some of the particles are labeled and their number density exhibits a time-independent linear profile along a given ...
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      Universal reference state in a driven homogeneous granular gas  [Article]

      García de Soria Lucena, María Isabel; Maynar Blanco, Pablo (American Physical Society, 2012)
      We study the dynamics of a homogeneous granular gas heated by a stochastic thermostat, in the low density limit. It is found that, before reaching the stationary regime, the system quickly “forgets” the initial condition ...
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      Use of Parsons-Lee and Onsager theories to predict nematic and demixing behavior in binary mixtures of hard rods and hard spheres  [Article]

      Cuetos, Alejandro; Martínez-Haya, Bruno; Lago, S.; Rull Fernández, Luis Felipe (American Physical Society, 2007)
      Parsons-Lee and Onsager theories are formulated for the isotropic-nematic transition in a binary mixture of hard rods and hard spheres. Results for the phase coexistence and for the equation of state in both phases ...
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      Using electron scattering superscaling to predict charge-changing neutrino cross sections in nuclei  [Article]

      Amaro Soriano, José Enrique; Barbaro, M. B.; Caballero Carretero, Juan Antonio; Donnelly, T. W.; Molinari, A.; Sick, I. (American Physical Society, 2005-01-01)
      Superscaling analyses of few-GeV inclusive electron scattering from nuclei are extended to include not only quasielastic processes, but also the region where excitation dominates. With reasonable assumptions about the ...
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      Uso del residuo industrial yeso rojo como sustituto del yeso natural para la fabricación de cementos comerciales  [Article]

      Bolívar Raya, Juan Pedro; Vaca Galán, Federico; Mena-Nieto, Ángel; García-Tenorio García-Balmaseda, Rafael; Gázquez, M.J. (2012)
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      UV to far-IR reflectance spectra of carbonaceous chondrites - I. Implications for remote characterization of dark primitive asteroids targeted by sample-return missions  [Article]

      Trigo-Rodríguez, Josep Maria; Moyano-Cambero, Carles E.; Llorca, Jordi; Fornasier, Sonia; Barucci, Maria Antonietta; Belskaya, Irina N.; Martins, Zita; Rivkin, Andrew S.; Dotto, Elisabetta; Madiedo Gil, José María; Alonso-Azcárate, Jacinto (Oxford University Press, 2013)
      We analyse here a wide sample of carbonaceous chondrites from historic falls (e.g. Allende, Cold Bokkeveld, Kainsaz, Leoville, Murchison, Murray, Orgueil and Tagish Lake) and from NASA Antarctic collection.With the analysis ...
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      Validity of the Boltzmann equation to describe low-density granular systems  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José (American Physical Society, 2004)
      The departure of a granular gas in the instable region of parameters from the initial homogeneous cooling state is studied. Results from molecular dynamics and from direct Monte Carlo simulation of the Boltzmann equation ...
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      Velocity distribution of fluidized granular gases in the presence of gravity  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José (American Physical Society, 2003)
      The velocity distribution of a fluidized dilute granular gas in the direction perpendicular to the gravitational field is investigated by means of molecular dynamics simulations. The results indicate that the velocity ...
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      Vibrated granular gas confined by a piston  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José (American Physical Society, 2009)
      The steady state of a vibrated granular gas confined by a movable piston on top is discussed. Particular attention is given to the hydrodynamic boundary conditions to be used when solving the inelastic Navier-Stokes ...
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      Volume fluctuations and compressibility of a vibrated granular gas  [Article]

      Brey Abalo, José Javier; Ruiz Montero, María José (American Physical Society, 2010)
      The volume fluctuations in the steady state reached by a vibrated granular gas of hard particles confined by a movable piston on the top are investigated by means of event-driven simulations. Also, a compressibility factor, ...
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      Wetting and interfacial order at nematic free surfaces  [Article]

      Martín del Río, Elvira Fátima; Telo Da Gama, Margarida Maria; Miguel Agustino, Enrique de; Rull Fernández, Luis Felipe (IOP Publishing Ltd., 1996-07-20)
      We apply a density-functional theory to the free surface of a model liquid crystal, to investigate the orientational order at the nematic free surface of systems exhibiting orientational wetting at the isotropic liquid-vapour ...
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      Wetting of Nematic Liquid Crystals on Crenellated Substrates: A Frank–Oseen Approach  [Article]

      Rojas Gómez, Oscar A.; Telo Da Gama, Margarida Maria; Romero Enrique, José Manuel (MDPI, 2019-08-19)
      We revisit the wetting of nematic liquid crystals in contact with crenellated substrates, studied previously using the Landau–de Gennes formalism. However, due to computational limitations, the characteristic length scales ...
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      Wetting transition of a nematic liquid crystal on a periodic wedge-structured substrate  [Article]

      Romero Enrique, José Manuel; Patrício, Pedro; Pham, Chi Tuong (EDP Sciences, 2007)
      It is known that the wetting behaviour of a fluid is deeply altered by the presence of rough or structured substrates. We first review some simple considerations about isotropic fluids and rough substrates, and then we ...
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      When the Hotter Cools More Quickly: Mpemba Effect in Granular Fluids  [Article]

      Lasanta Becerra, Antonio; Vega Reyes, Francisco; Prados Montaño, Antonio; Santos Reyes, Andrés (American Physical Society, 2017)
      Under certain conditions, two samples of fluid at different initial temperatures present a counterintuitive behavior known as the Mpemba effect: it is the hotter system that cools sooner. Here, we show that the Mpemba ...
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      α-particle production in 6He + 120Sn collisions  [Article]

      Faria, P. N. de; Lichtenthäler, R.; Pires, K. C. C.; Moro Muñoz, Antonio Matías; Lépine-Szily, A.; Guimarães, V.; Morais, M.C. (The American Physical Society, 2010)
      The collision 6He+120Sn has been investigated at four energies near the Coulomb barrier. A large yield of α particles has been detected, with energies around the energy of the scattered 6He beam. The energy and angular ...