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High-spin spectroscopy of Ga-63(31)32 and Ga-65(31)34
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2001 (Engelska)Ingår i: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 11, nr 1, s. 25-38Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

High-spin states in the nuclei Ga-63 and Ga-65 were studied following the reaction S-32 + Ca-40 at a reaction energy of 125 MeV and using the GASP gamma -ray spectrometer in combination with the ISIS charged-particle detector system. In addition to low-lying negative-parity states with single-particle character, rotational-like cascades built on the 9/2(+) and 19/2(-) states have been observed in both nuclei. Sidebands with negative parity in Ga-63 and positive parity in Ga-65 could be established. The experimental results are compared with Total Routhian Surface calculations which describe the nuclei as moderately deformed (beta (2) approximate to 0.25) and gamma soft at low rotational frequencies. The highest experimentally observed positive-parity state in Ga-65 (41/2(+)) is in good agreement with the calculated crossing of the collective band with a non-collective one terminating at this spin.

Ort, förlag, år, upplaga, sidor
2001. Vol. 11, nr 1, s. 25-38
Nyckelord [en]
gamma-ray spectroscopy, n = z, nuclei, states
Identifikatorer
URN: urn:nbn:se:kth:diva-20858ISI: 000170336000005OAI: oai:DiVA.org:kth-20858DiVA, id: diva2:339555
Anmärkning
QC 20100525Tillgänglig från: 2010-08-10 Skapad: 2010-08-10 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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