Nuclear Structure 2024

Session

Heavy Nuclei and Super Heavy Elements - Part 2

Jul 26, 2024, 9:00 AM

Auditorium (APS Conference Center, Argonne)

Conveners

Heavy Nuclei and Super Heavy Elements - Part 2

• Rodney Orford (Lawrence Berkeley National Laboratory)

58. Exploring the structure of the heaviest nuclei through laser spectroscopy and mass spectrometry

Michael Block (GSI Helmholtzzentrum für Schwerionenforschung)

7/26/24, 9:00 AM

Exploring the limits of nuclear existence is at the forefront of contemporary nuclear physics. At the GSI in Darmstadt, we have explored the limit in the region of superheavy nuclei for more than 50 years resulting in the discovery of six new elements, for example. Recently, the program has been expanded towards a comprehensive investigation of the atomic, nuclear, and chemical properties of...

59. Recent results obtained with the Argonne Gas-Filled Analyzer: observation of the ground-state rotational band in the highly fissile nucleus 250No

Darek Seweryniak (Argonne National Laboratory)

7/26/24, 9:25 AM

The island of deformed nuclei around the Z=100, N=152 deformed shell gaps serves a stringent testing ground for nuclear models aiming to describe super-heavy nuclei. In fact, without the presence of shell corrections, these nuclei would undergo instantaneous fission. Nuclei in this region have been extensively studied using decay and in-beam spectroscopic methods. During the presentation,...

60. New half-lives measurements for r-process in A∼225 Po-Fr nuclei

Marta Polettini (University of Padova and INFN Padova)

7/26/24, 9:45 AM

The astrophysical rapid-neutron capture process (r-process) of explosive nucleosynthesis is re- sponsible for the formation of half of the heavy nuclei above Fe [1]. Actinides are produced towards the end of this process, when the neutron flux is expected to be minimal, and it is supported also by fission processes. Given that the r-process path runs far away from the accessible species, in...

61. Nuclear resonance fluorescence of 242Pu

Maike Beuschlein (Technische Universita ̈t Darmstadt)

7/26/24, 10:05 AM

The electromagnetic dipole response of 242Pu was studied for the first time using the nuclear resonance fluorescence (NRF) method, hence with real photons. The experiment was performed at TU Darmstadt, where monoenergetic electrons are provided by the superconducting Darmstadt linear electron accelerator S-DALINAC to produce bremsstrahlung by impinging on a gold radiator target. A sample of...