Now showing items 431-450 of 794

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      Near barrier scattering of 8He on 208Pb  [Article]

      Marquínez Durán, G; Sánchez Benítez, A. M.; Martel Bravo, Ismael; Acosta, Luis; Rusek, K.; González Álvarez, Marcos Aurelio; Berjillos, R.; Borge, María José G; Chbihi, Abdelahad; Cruz, Christophe Santa; Cubero, M; Dueñas, Jose Antonio; Fernández García, Juan Pablo; Fernández Martínez, Begoña; Flores, Jorge Luis; Gómez Camacho, Joaquín José; Keeley, N; Labrador Bernal, Juan Ángel; Marqués, Miriam Fátima Ferreira; Moro Muñoz, Antonio Matías; Ziad, A. H. (EDP Sciences, 2014)
      The exotic nucleus 8He is investigated by means of the measurement of the angular distributions of the elastic channel and the 6He and 4He fragment yields produced in the collision with a 208Pb target at two energies around ...
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      Near-earth object 2012XJ112 as a source of bright bolides of achondritic nature  [Article]

      Madiedo Gil, José María; Trigo-Rodríguez, Josep Maria; Williams, Iwan P.; Konovalova, Natalia A.; Ortiz, J. L.; Castro-Tirado, A. J.; Pastor, Sensi; De Los Reyes, José A.; Cabrera Caño, Jesús María (Blackwell Publishing Ltd, 2014)
      We analyse the likely link between the recently discovered near-Earth object 2012XJ112 and a bright fireball observed over the south of Spain on 2012 December 27. The bolide, with an absolute magnitude of -9 ± 1, was ...
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      Nematic liquid crystals on sinusoidal channels: the zigzag instability  [Article]

      Romero Enrique, José Manuel; Silvestre, Nuno M.; Telo Da Gama, Margarida Maria (IOP Publishing, 2017)
      Substrates which are chemically or topographically patterned induce a variety of liquid crystal textures. The response of the liquid crystal to competing surface orientations, typical of patterned substrates, is determined ...
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      Nematic wetting and filling of crenellated surfaces  [Article]

      Silvestre, Nuno M.; Eskandari, Zahra; Patrício, Pedro; Romero Enrique, José Manuel; Telo Da Gama, Margarida Maria (American Physical Society, 2012)
      We investigate nematic wetting and filling transitions of crenellated surfaces (rectangular gratings) by numerical minimization of the Landau–de Gennes free energy as a function of the anchoring strength, for a wide ...
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      Neutral current (anti)neutrino scattering: Relativistic mean field and superscaling predictions  [Article]

      González Jiménez, Raúl; Ivanov, M. V.; Barbaro, M. B.; Caballero Carretero, Juan Antonio; Udías, J. M. (Elsevier, 2013)
      We evaluate the neutral current quasi-elastic neutrino cross section within two nuclear models: the SuSA model, based on the superscaling behavior of electron scattering data, and the RMF model, based on relativistic mean ...
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      Neutral current quasielastic (anti)neutrino scattering beyond the Fermi gas model at MiniBooNE and BNL kinematics  [Article]

      Ivanov, M. V.; Antonov, A. N.; Barbaro, M. B.; Giusti, Carlotta; Meucci, Andrea; Caballero Carretero, Juan Antonio; González Jiménez, Raúl; Moya de Guerra, E.; Udías, J. M. (American Physical Society, 2015)
      Neutral current quasielastic (anti)neutrino scattering cross sections on a C12 target are analyzed using a realistic spectral function S(p,E) that gives a scaling function in accordance with the (e,e′) scattering data. The ...
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      Neutrino and antineutrino CCQE scattering in the superScaling approximation from miniBooNE to NOMAD energies  [Article]

      Megías Vázquez, Guillermo Daniel; Amaro Soriano, José Enrique; Barbaro, M. B.; Caballero Carretero, Juan Antonio; Donnelly, T. W. (Elsevier, 2013)
      We compare the predictions of the SuperScaling model for charged-current quasielastic muonic neutrino and antineutrino scattering from 12C with experimental data spanning an energy range up to 100 GeV. We discuss the ...
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      Neutron capture cross section measurement of 151 Sm at the CERN neutron time of flight facility (n_TOF)  [Article]

      Quesada Molina, José Manuel; Abbondanno, U.; Aerts, G.; Álvarez Velarde, F.; Álvarez-Pol, H.; Andriamonje, S.; Andrzejewski, J.; Badurek, G. (American Physical Society, 2004-10-15)
      The151Sm(n,γ)152Sm cross section has been measured at the spallation neutron facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The new facility combines excellent resolution in neutron time-of-flight, low ...
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      Neutron capture cross section measurement of U 238 at the CERN n-TOF facility in the energy region from 1 eV to 700 keV  [Article]

      Mingrone, F.; Massimi, C.; Vannini, Gianni; Colonna, Nicola; Gunsing, Frank; Žugec, P.; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Cortés Giraldo, Miguel Antonio (American Physical Society, 2017)
      The aim of this work is to provide a precise and accurate measurement of the 238U(n,γ ) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundamental importance for the design calculations ...
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      Neutron capture cross section of 232 Th measured at the n TOF facility at CERN in the unresolved resonance region up to 1 MeV  [Article]

      Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada, J.; Aerts, G.; Abbondanno, U.; Álvarez, H.; Alvarez Velarde, F.; Andriamonje, S. (American Physical Society, 2006-06-07)
      We have measured the neutron capture reaction yield of 232Th at the neutron time-of-flight facility n TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy ...
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      Neutron capture cross section of 90Zr: Bottleneck in the s-process reaction flow  [Article]

      Tagliente, G.; Fujii, K.; Milazzo, Paolo; Moreau, C.; Aerts, G.; Abbondanno, U.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel; Wisshak, K. (The American Physical Society, 2008)
      The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than 50% ...
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      Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis  [Article]

      Quesada Molina, José Manuel; Lederer, C.; Massimi, C.; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Barbagallo, M.; Bécares, V. (American Physical Society, 2013-01-08)
      The 63Ni(n,γ) cross section has been measured for the first time at the neutron time-of-flight facility n_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were ...
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      Neutron capture on 94Zr: Resonance parameters and Maxwellian-averaged cross sections  [Article]

      Tagliente, G.; Milazzo, Paolo; Fujii, K.; Abbondanno, U.; Aerts, G.; Álvarez, H.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (American Physical Society, 2011)
      The neutron capture cross sections of the Zr isotopes play an important role in nucleosynthesis studies. The s-process reaction flow between the Fe seed and the heavier isotopes passes through the neutron magic nucleus ...
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      Neutron cross-sections for advanced nuclear systems: the n_TOF project at CERN  [Article]

      Cortés Giraldo, Miguel Antonio; Praena Rodríguez, Javier; Quesada Molina, José Manuel; Sabaté Gilarte, Marta; González Romero, Enrique M.; Mendoza, Emilio; Vannini, Gianni (EDP Sciences, 2014)
      The study of neutron-induced reactions is of high relevance in a wide variety of fields, ranging from stellar nucleosynthesis and fundamental nuclear physics to applications of nuclear technology. In nuclear energy, high ...
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      Neutron physics of the Re/Os clock. I. Measurement of the (n, γ) cross sections of 186, 187, 188 Os at the CERN n_TOF facility  [Article]

      Mosconi, M.; Fujii, K.; Mengoni, A.; Domingo-Pardo, C.; Käppeler, F.; Abbondanno, U.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Praena Rodríguez, Javier; Quesada Molina, José Manuel (The American Physical Society, 2010)
      The precise determination of the neutron capture cross sections of 186Os and 187Os is important to define the s-process abundance of 187Os at the formation of the solar system. This quantity can be used to evaluate the ...
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      Neutron physics of the Re/Os clock. III. Resonance analyses and stellar (n, γ) cross sections of 186, 187, 188Os  [Article]

      Fujii, K.; Mosconi, M.; Mengoni, A.; Domingo-Pardo, C.; Käppeler, F.; Abbondanno, U.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Praena Rodríguez, Javier; Quesada Molina, José Manuel (The American Physical Society, 2010)
      Neutron resonance analyses have been performed for the capture cross sections of 186Os, 187Os, and 188Os measured at the n-TOF facility at cern. Resonance parameters have been extracted up to 5, 3, and 8 keV, respectively, ...
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      Neutron spectroscopy of 26Mg states: Constraining the stellar neutron source 22Ne(α,n)25Mg  [Article]

      Massimi, C.; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Barbagallo, M.; Bécares, Vicente; Cortés Giraldo, Miguel Antonio; Praena Rodríguez, Javier; Quesada Molina, José Manuel; Sabaté Gilarte, Marta (Elsevier, 2017)
      This work reports on accurate, high-resolution measurements of the 25Mg(n,γ)26Mg and 25Mg(n,tot) cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved 25Mg(n,γ)26Mg ...
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      Neutron-induced fission cross section of 234 U measured at the CERN n_TOF facility  [Article]

      Karadimos, D.; Vlastou, R.; Ioannidis, K.; Demetriou, P.; Diakaki, M.; Vlachoudis, Vasilis; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (American Physical Society, 2014)
      The neutron-induced fission cross section of 234U has been measured at the CERN n-TOF facility relative to the standard fission cross section of 235U from 20 keV to 1.4 MeV and of 238U from 1.4 to 200 MeV. A fast ionization ...
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      Neutron-induced fission cross section of 234U and 237Np measured at the CERN Neutron Time-of-Flight (n_TOF) facility  [Article]

      Paradela, Carlos; Tassan-Got, L.; Audouin, Laurent; Berthier, B.; Durán, Ignacio; Ferrant, L.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (The American Physical Society, 2010)
      A high-resolution measurement of the neutron-induced fission cross section of 234U and 237Np has been performed at the CERN Neutron Time-of-Flight facility. The cross sections have been determined in a wide energy range ...
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      Neutron-induced fission cross section of 245 Cm: New results from data taken at the time-of-flight facility n_TOF  [Article]

      Calviani, M.; Meaze, M. H.; Colonna, Nicola; Praena Rodríguez, Javier; Abbondanno, U.; Aerts, G.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel; Wisshak, K. (American Physical Society, 2012)
      The neutron-induced fission cross section of 245Cm was measured at n-TOF in a wide energy range and with high resolution. The energy dependence, measured in a single measurement from 30 meV to 1 MeV neutron energy, has ...