In order to investigate the evolution of nuclear deformation in the region of the chart of nuclides around mass numbers A similar or equal to 110 and A similar or equal to 150, an experiment was performed at the Argonne National Laboratory where the gamma-decay radiation emitted from the fission fragments of Cf-252 was measured using 51 Gammasphere detectors coupled with 25 LaBr3 (Ce) detectors. In this work, a short description of the experimental setup is presented together with some preliminary results from the fast-timing analysis of the 4(+) state of the nucleus Zr-100. A lifetime value of tau = 50(28) ps was obtained using the Generalized Centroid Shift Method. This result agrees with the literature value of tau = 53(4) ps within one standard deviation.
Fast-Timing measurements in 100zr using labr3(ce) detectors coupled with gammasphere / E.R. Gamba, A.M. Bruce, M. Rudigier, S. Lalkovski, S. Bottoni, M.P. Carpenter, S. Zhu, A.D. Ayangeakaa, J.T. Anderson, T.A. Berry, I. Burrows, R.J. Carrol, P. Copp, M.C. Gallardo, D.M. Cullen, T. Daniel, G.F. Martinez, J.P. Greene, L.A. Gurgi, D.J. Hartley, R. Ilieva, S. Ilieva, R.V.F. Janssens, F.G. Kondev, T. Kroll, G.J. Lane, T. Lauritsen, I. Lazarus, G. Lotay, C.R. Nia, Z. Podolyak, V. Pucknell, M. Reed, P.H. Regan, J. Rohrer, J. Sethi, D. Seweryniak, C.M. Shand, J. Simpson, M. Smolen, V. Vedia, E.A. Stefanova, O. Yordanov. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - 49:3(2018), pp. 555-560. ((Intervento presentato al 35. convegno Mazurian Lakes Conference on Physics Exotic Nuclei : Laboratories for Fundamental Laws of Nature tenutosi a Piaski nel 2017.
Fast-Timing measurements in 100zr using labr3(ce) detectors coupled with gammasphere
E.R. Gamba;S. Bottoni;
2018
Abstract
In order to investigate the evolution of nuclear deformation in the region of the chart of nuclides around mass numbers A similar or equal to 110 and A similar or equal to 150, an experiment was performed at the Argonne National Laboratory where the gamma-decay radiation emitted from the fission fragments of Cf-252 was measured using 51 Gammasphere detectors coupled with 25 LaBr3 (Ce) detectors. In this work, a short description of the experimental setup is presented together with some preliminary results from the fast-timing analysis of the 4(+) state of the nucleus Zr-100. A lifetime value of tau = 50(28) ps was obtained using the Generalized Centroid Shift Method. This result agrees with the literature value of tau = 53(4) ps within one standard deviation.
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