Search Results - (Author, Cooperation:J. Rico)

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  1. 1
    J. Aleksic ; S. Ansoldi ; L. A. Antonelli ; P. Antoranz ; A. Babic ; P. Bangale ; J. A. Barrio ; J. Becerra Gonzalez ; W. Bednarek ; E. Bernardini ; B. Biasuzzi ; A. Biland ; O. Blanch ; S. Bonnefoy ; G. Bonnoli ; F. Borracci ; T. Bretz ; E. Carmona ; A. Carosi ; P. Colin ; E. Colombo ; J. L. Contreras ; J. Cortina ; S. Covino ; P. Da Vela ; F. Dazzi ; A. De Angelis ; G. De Caneva ; B. De Lotto ; E. de Ona Wilhelmi ; C. Delgado Mendez ; D. Dominis Prester ; D. Dorner ; M. Doro ; S. Einecke ; D. Eisenacher ; D. Elsaesser ; M. V. Fonseca ; L. Font ; K. Frantzen ; C. Fruck ; D. Galindo ; R. J. Garcia Lopez ; M. Garczarczyk ; D. Garrido Terrats ; M. Gaug ; N. Godinovic ; A. Gonzalez Munoz ; S. R. Gozzini ; D. Hadasch ; Y. Hanabata ; M. Hayashida ; J. Herrera ; D. Hildebrand ; J. Hose ; D. Hrupec ; W. Idec ; V. Kadenius ; H. Kellermann ; K. Kodani ; Y. Konno ; J. Krause ; H. Kubo ; J. Kushida ; A. La Barbera ; D. Lelas ; N. Lewandowska ; E. Lindfors ; S. Lombardi ; F. Longo ; M. Lopez ; R. Lopez-Coto ; A. Lopez-Oramas ; E. Lorenz ; I. Lozano ; M. Makariev ; K. Mallot ; G. Maneva ; N. Mankuzhiyil ; K. Mannheim ; L. Maraschi ; B. Marcote ; M. Mariotti ; M. Martinez ; D. Mazin ; U. Menzel ; J. M. Miranda ; R. Mirzoyan ; A. Moralejo ; P. Munar-Adrover ; D. Nakajima ; A. Niedzwiecki ; K. Nilsson ; K. Nishijima ; K. Noda ; R. Orito ; A. Overkemping ; S. Paiano ; M. Palatiello ; D. Paneque ; R. Paoletti ; J. M. Paredes ; X. Paredes-Fortuny ; M. Persic ; J. Poutanen ; P. G. Prada Moroni ; E. Prandini ; I. Puljak ; R. Reinthal ; W. Rhode ; M. Ribo ; J. Rico ; J. Rodriguez Garcia ; S. Rugamer ; T. Saito ; K. Saito ; K. Satalecka ; V. Scalzotto ; V. Scapin ; C. Schultz ; T. Schweizer ; S. N. Shore ; A. Sillanpaa ; J. Sitarek ; I. Snidaric ; D. Sobczynska ; F. Spanier ; V. Stamatescu ; A. Stamerra ; T. Steinbring ; J. Storz ; M. Strzys ; L. Takalo ; H. Takami ; F. Tavecchio ; P. Temnikov ; T. Terzic ; D. Tescaro ; M. Teshima ; J. Thaele ; O. Tibolla ; D. F. Torres ; T. Toyama ; A. Treves ; M. Uellenbeck ; P. Vogler ; R. Zanin ; M. Kadler ; R. Schulz ; E. Ros ; U. Bach ; F. Krauss ; J. Wilms
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-11-08
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Rico, J. Fernández ; López, R. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    We develop and check an updated version of the ellipsoidal coordinate methods for the calculation of three-center nuclear attraction integrals with Slater-type orbitals (STOs). A first set of recurrence relations allows us to express these integrals in terms of some basic potentials. The basic potentials are classified in short- and long-range types, and then calculated in specific ways from auxiliary functions obtained by using a new set of both stable and fast recurrence relations. Numerical tests show that the procedure enables to reach very high accuracy in the integrals with a low computational cost.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.463481

    Articles: DFG German National Licenses
  3. 3
    Fernández Rico, J. ; López, R. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1989
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    A new algorithm for the calculation of molecular integrals involving STOs is reported. The algorithm enables us to obtain every two-center one-electron integral and the long-range many-center one- and two-electron integrals. The efficient implementation of the algorithm is discussed and its performance is thoroughly tested. The analysis on the stability of the relations employed in the calculation of multipolar moments is included. Futhermore, the computer time required to carry out each step (construction of basic matrices, calculation of multipolar moments, and calculation of two-electron integrals) has also been analyzed. The range of validity of this approach is shown in several molecular integrals.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.456800

    Articles: DFG German National Licenses
  4. 4
    Rico, J. Fernández ; López, R. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    We discuss the calculation of the general three-center nuclear attraction integrals with Slater type orbitals using a one-center expansion method which exploits the algorithms previously developed by us for long-range integrals. From the analysis of the numerical stability, accuracy, and computational cost we conclude that the reported procedure is suitable for the calculation of these integrals with any desired precision. Moreover, we have found that most of these integrals can be obtained with high accuracy at a very low computational cost, but the procedure could be too expensive for a few of them.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.460538

    Articles: DFG German National Licenses
  5. 5
    Fernández Rico, J. ; López, R. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1989
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    A method for the calculation of many-center integrals involving Slater-type orbitals (STOs) is reported. The method is based on the separation of the short- and long-range terms of the potentials generated by charge distributions. The calculation of three-center nuclear attraction integrals and many-center electron repulsion integrals, when the short-range contributions are negligible, is formulated in terms of multipolar moments of charge distributions. Recurrence relations for obtaining the multipolar moments, which enable us to reduce their calculations to the evaluation of some basic integrals, are reported.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.456799

    Articles: DFG German National Licenses
  6. 6
    Fernández Rico, J. ; López, R. ; Ramírez, G. ; Tablero, C.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    The numerical and analytical procedures, used for calculating exchange integrals with Slater functions, fail to give high accuracy for large quantum numbers and some values of the parameters. We propose here an algorithmic approach based on recurrence relations which start from some simple functions. An extensive study in which exponents, interatomic distances, and quantum numbers were varied proves that the new procedure is fully reliable. Finally, the cost of the procedure is analyzed, including the effect of the number of terms needed to attain a given accuracy. © 1994 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.467946

    Articles: DFG German National Licenses
  7. 7
    Rico, J. Fernández ; López, R. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1999
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    The minimal deformation criterion, previously proposed for the partition of the molecular density into atomic contributions, is updated and extended. For any Gaussian basis set, these atomic contributions are expanded in a series of real spherical harmonics by radial factors. The terms with l=0 determine the spherical parts of the atomic clouds and the remaining ones, their deformations. This detailed description is complemented with a simplified representation of the molecular density in terms of atomic charges and multipoles. Moreover, these descriptions give a simple way to calculate the electrostatic potential of the molecule as well as the electrostatic interaction between molecules. © 1999 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.478303

    Articles: DFG German National Licenses
  8. 8
    Rico, J. Fernández ; López, R.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1986
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    We show here that the coefficients for the expansion of any Slater-type function over a displaced center can be obtained by three simple (and numerically stable) recurrence relations starting at the expansion coefficients of the 1s or 2s orbitals. We present also compact (and very fast to compute) formulas for these initial quantities.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.451551

    Articles: DFG German National Licenses
  9. 9
    Fernández Rico, J. ; López, R. ; Ema, I. ; Ramírez, G.

    College Park, Md. : American Institute of Physics (AIP)
    Published 2002
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    In a recently reported method, the molecular density is partitioned in minimally deformed atomic contributions, which are expanded in spherical harmonics times radial factors. Here we use this representation to express the electrostatic potential of the molecule, the force on its nuclei, and the conformational variations of energy in terms of some simple integrals of the atomic radial factors. As a first application, we analyze the relationship between the density and the binding forces (and the bonding energy) in the diatomic molecules of the first row atoms. Two types of forces act on each nucleus: the self-pulling exerted by its own cloud and the external force due to the remaining atoms. The self-pulling comes only from the dipole type term of the atomic density. The external force comes from the other clouds and nuclei and is dominated by the effective charges which depend on the outermost region of the charge term. Analyzing the progressive deformations of the atoms when they approach each other, the forces associated with these deformations and their contributions to the energy, one has a detailed description of the chemical bond which is complementary, and in many aspects more appealing, than the conventional ones. © 2002 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1420403

    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    0375-9474
    Keywords:
    Nuclear reactions
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0375-9474(94)90803-6

    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    0009-2614
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0009-2614(77)80622-2

    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    0010-4655
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Computer Science
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0010-4655(91)90041-I

    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    0010-4655
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Computer Science
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0010-4655(94)90175-9

    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    0375-9474
    Keywords:
    Nuclear reactions
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0375-9474(94)90803-6

    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    0166-1280
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0166-1280(88)80430-5

    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    0370-2693
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0370-2693(93)90926-9

    Articles: DFG German National Licenses
  17. 17
    Staff View
    ISSN:
    1434-601X
    Keywords:
    23.20.Lv ; 27.60.+J 7
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The previously unknown nucleus118Cs has been identified through γ-γ and γ-recoil coincidences using the GASP γ-spectrometer and Recoil Mass Spectrometer. The level scheme constructed on the base of triple γ coincidences shows a collective structure based on the π−1g9/2⊗νh11/2 configuration.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01292527

    Articles: DFG German National Licenses
  18. 18
    Staff View
    ISSN:
    1434-601X
    Keywords:
    23.20.Lv ; 27.60. +J ; 25.70.-Z
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract An in-beamγ-ray study performed with the114Cd(30Si,p 3n) reaction has established the structure of theN=79 nucleus140Pm. States up toI=(20)ħ and 5.5 MeV excitation energy have been recognized above the 5.95 m isomeric state which we identify, from the GT decay to140Nd, as the 8− member of the (πd 5 2/−1 vh 11 2/−1 ) multiplet, changing the present 7− assignment. The low energy part of the level scheme is discussed in terms of the coupling of the valence holes in respect to theZ=64,N=82 shell closure. A new 8+ isomeric state witht 1/2=1 −0.5 +1 ns has been observed, having most likely a (πh 11/2 vh 11/2 -1 )8 configuration.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01284675

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    0097-8485
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0097-8485(81)80017-4

    Articles: DFG German National Licenses
  20. 20
    Noe, J.W. ; Rico, J. ; Uto, H.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0168-9002
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0168-9002(93)90643-V

    Articles: DFG German National Licenses