# Decay Spectroscopy of the Heaviest Nuclear Species — Perspectives at S$^3$

Abstract : After more than half a century of research addressing the synthesis and nuclear structure of superheavy nuclei (SHN) a boost for its progress is expected from the advent of new instrumentation. An order of magnitude in beam intensity increase is envisaged to be provided by new powerful accelerators like the new DC280 cyclotron at the SHE factory of FLNR/JINR or the superconducting LINAC at SPIRAL2 of GANIL. In addition new ion-optical installations like the separator-spectrometer set-up S3 with two complementary detection systems, SIRIUS and LEB, will provide a substantial sensitivity increase for decay spectroscopy after separation (DSAS), as well as for alternative and complementary methods like high precision mass measurements and laser spectroscopy. DSAS has proven in the past to be a powerful tool to study the low lying nuclear structure of heavy and superheavy nuclei. Single particle levels and other structure features like K isomerism, being important in the fermium-nobelium region as well as for the route towards spherical shell stabilized SHN, have been investigated almost up to the limit posed by the sensitivity of present-day instrumentation. Precision mass measurements and laser spectroscopy will offer the possibility to study alternative features like binding energies, charge radii and quadrupole moments. At the magnetic spectrometer VAMOS of GANIL with the recently improved mass resolution and the development of Z identification, deep-inelastic reactions like multi-nucleon transfer can be used to reach more neutron-rich nuclei in the region of light actinides, possibly being extended towards higher Z.
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http://hal.in2p3.fr/in2p3-02444293
Contributor : Michel Lion <>
Submitted on : Friday, January 17, 2020 - 5:11:40 PM
Last modification on : Monday, January 20, 2020 - 8:50:32 AM

### Citation

D. Ackermann. Decay Spectroscopy of the Heaviest Nuclear Species — Perspectives at S$^3$. 9th International Symposium on EXOtic Nuclei (EXON 2018), Sep 2018, Petrozavodsk, Russia. pp.367-374, ⟨10.1142/9789811209451_0051⟩. ⟨in2p3-02444293⟩

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