Münster 2002 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 45: Nuclear Physics / Spectroscopy VII
HK 45.4: Talk
Thursday, March 14, 2002, 17:15–17:30, B
γ-Spectroscopy of 40Ca and 42Ca — •S. Torilov1, S. Thummerer1, W. von Oertzen1, B. Gebauer1, H.G. Bohlen1, Tz. Kokalova1, A. Tumino1, G. de Angelis2, M. Axiotis2, A. Gadea2, E. Farnea2, N. Marginean2, T. Martinez2, D.R. Napoli2, M. De Poli2, S.M. Lenzi3, C. Ur3, C. Beck4, M. Rousseau4, and P. Papka4 — 1Hahn-Meitner-Institut Berlin — 2INFN, Laboratori Nazionali di Legnaro — 3Dipartimento di Fisica and INFN, Padova — 4Institut de Recherches Subatomiques
In the present work high-lying levels of two even isotopes of Ca were studied using particle-γ coincidence. To select the reaction channels for γ-spectroscopy the Si-ball ISIS has been used in combination with the GASP γ-detector array at LNL Legnaro.
From this experiment 19 new levels and 25 new transitions for 40Ca for excitation energies up to 21 MeV and 5 new levels and 5 new transitions for 42Ca up to 13 MeV were found. The present data show in 40Ca clearly sperarated rotational bands with a 4p-4h and 8p-8h structure and a mixture of different structures in the yrast line.
For 42Ca some very good candidates were found for the 12+ state of the 6p-4h band.