Year: 2019
Type: article
Abstract: Lifetime measurements of excited states in $^{178}\mathrm{Hg}$ have been performed using the $^{103}\mathrm{Rh}(^{78}\mathrm{Kr},p2n)$ reaction at a beam energy of 354 MeV. The recoil-decay tagging (RDT) technique was applied to select the $^{178}\mathrm{Hg}$ nuclei and associate the prompt $\ensuremath{\gamma}$ rays with the correlated characteristic ground-state $\ensuremath{\alpha}$ decay. Lifetimes of the four lowest yrast states of $^{178}\mathrm{Hg}$ have been determined using the recoil distance Doppler-shift (RDDS) method. The experimental data are compared to theoretical predictions with focus on shape coexistence. The results confirm the shift of the deformed prolate structures to higher lying states but also indicate their increasing deformation with decreasing neutron number.
Source: Physical Review C
Authors: C. Müller-Gatermann, A. Dewald, C. Fransen, K. Auranen, H. Badran, M. Beckers, A. Blazhev, T. Braunroth, D. M. Cullen, G. Fruet, A. Goldkuhle, T. Grahn, P. T. Greenlees, A. Herzáň, U. Jakobsson, D. Jenkins, J. Jolie, R. Julin, S. Juutinen, J. Konki, M. Leino, J. Litzinger, K. Nomura, J. Pakarinen, P. Peura, M. G. Procter, P. Rahkila, P. Ruotsalainen, M. Sandzelius, J. Sarén, C. Scholey, J. Sorri, S. Stolze, M. J. Taylor, J. Uusitalo, K. O. Zell
Institutions: University of Cologne, University of Jyväskylä, University of Manchester, Centre National de la Recherche Scientifique, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, University of Liverpool, Slovak Academy of Sciences, Institute of Physics of the Slovak Academy of Sciences, University of Helsinki, University of York, Japan Atomic Energy Agency, Advanced Science Research Center, Helsinki Institute of Physics, TRIUMF, University of Oulu
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2962089618