Počet záznamů: 1

Spectroscopy of (39.41)Si and the border of the N=28 island of inversion

  1. 1.
    0367068 - UJF-V 2012 RIV NL eng J - Článek v odborném periodiku
    Sohler, D. - Grévy, S. - Dombrádi, Zs. - Baiborodin, Dmitri - Dlouhý, Zdeněk - Mrázek, Jaromír
    Spectroscopy of (39.41)Si and the border of the N=28 island of inversion.
    Physics Letters. B. Roč. 703, č. 4 (2011), s. 417-421 ISSN 0370-2693
    Grant CEP: GA ČR GAP203/10/0310
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: Nuclear structure * Knockout reactions * Shell closures
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 3.955, rok: 2011

    The structure of the very neutron-rich nuclei (39)Si and (41)Si has been investigated via in-beam gamma-ray spectroscopy and few-nucleon knockout from radioactive beams. The observation of low-lying states in (39)Si is a clear evidence for a drastic lowering of the intruder neutron 3/2(-) state when going from Z = 20 to Z = 14. The energy of the only gamma-ray transition (672(14) keV) observed in (41)Si is significantly lower than that of the first excited state in (47)Ca (2014 keV) suggesting a deformed ground state for (41)Si. These results are consistent with large-scale shell-model calculations implying that strong proton-neutron correlations are the main reason for the lowering of the intruder configurations over the normal ones. (C) 2011 Elsevier By. All rights reserved.
    Trvalý link: http://hdl.handle.net/11104/0201853