Data di Pubblicazione:
1997
Citazione:
Lifetime measurements of the rotational quasi-continuum transitions in 163 Tm / B. Million, S. Leoni, A. Bracco, J. Moretti, S. Frattini, P. Bosetti, F. Camera, M. Mattiuzzi, B. Herskind, R.A. Bark, I. Bearden, G.B. Hagemann, H.J. Jensen. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 415:4(1997), pp. 321-327. [10.1016/S0370-2693(97)01271-9]
Abstract:
The lifetime of the unresolved transitions forming the rotational quasi-continuum spectra has been measured in 163Tm using the Doppler shift attenuation technique. Spectra associated to different values of the coincidence folds, angular anisotropies and the dynamical moment of inertia were also obtained from the present experiment. The Doppler shift has been measured for discrete transitions, for the ridge structures in Eγ1 X Eγ2 spectra and for the rotational E2 bump in one dimensional spectra. The data were compared to the theory using a simulation model which makes use of microscopically calculated levels and transition probabilities. Above 1300 keV the results indicate collectivity with lifetime faster than 10-14s, while at lower Eγ the results are well described by predictions with B(E2) = 400 WU.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
nuclei; YB-164
Elenco autori:
B. Million, S. Leoni, A. Bracco, J. Moretti, S. Frattini, P. Bosetti, F. Camera, M. Mattiuzzi, B. Herskind, R.A. Bark, I. Bearden, G.B. Hagemann, H.J. Jensen
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