Počet záznamů: 1  

Large-basis no-core shell model

  1. 1.
    0185547 - UJF-V 20020052 RIV NL eng J - Článek v odborném periodiku
    Barrett, BR. - Navrátil, Petr - Vary, J. P.
    Large-basis no-core shell model.
    Nuclear Physics. A. Roč. 704, č. 17 (2002), s. 254C-263C. ISSN 0375-9474. E-ISSN 1873-1554
    Výzkumný záměr: CEZ:AV0Z1048901
    Klíčová slova: monte-carlo calculations * light-nuclei * cross-sections * ground-state * C12 * systems
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 1.568, rok: 2002

    We discus both the translationally invariant and the standard formulation of the nocore shell-model approach. In this ab initio method the effective Hamiltonians are derived microscopically from realistic nucleon-nucleon (NN) potentials as a function of the finite harmonic-oscillator (HO) basis space. We present results for three and four nucleon systems interacting by the CD-Bonn or several other NN potentials in model spaces that include up to 50hOmega and 18hOmega HO excitations, respectively. Our results for these light systems are in agreement with results obtained by other exact methods. Also, we calculate properties of C-12using the CD-Bonn and the Argone V8`NN potentials for model spaces up to 5hOmega. Binding energies, rms radii, excitation spectra and electromagnetic properties are discussed. The favorable comparison with available data is a consequence of the underlying NN interaction rather than a phenomenological fit.
    Trvalý link: http://hdl.handle.net/11104/0081940

     
     

Počet záznamů: 1  

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