Eleanor Ronning
(INFN-Padova)
Statistical nuclear properties like the $\gamma$-ray strength function ($\gamma$SF) and nuclear level density (NLD) can be used to probe trends in nuclear structure and constrain astrophysical neutron capture reaction rates. Features in the $\gamma$SF such as the giant dipole resonance, pygmy dipole resonance, scissors mode, and low energy enhancement (LEE), can provide insight into properties of $\gamma$-decay. In particular, the nature of the LEE has been the subject of much debate in the nuclear physics community, with no definitive theoretical or experimental conclusion as to why it occurs. Here, we present a novel combination of experimental and analytical techniques used to probe statistical properties in the nucleus $^{70}$Zn, with a particular focus on the nature of the LEE. At the Facility for Rare Isotope Beams at Michigan State University, beams of the ground state (J$^\pi$=6$^-$) and second isomeric state (J$^\pi$=1$^+$) of $^{70}$Cu were isolated using the Low Energy Beam and Ion Trap (LEBIT) and delivered to the upgraded Summing NaI(Tl) Total Absorption Spectrometer (SuN++). The NLD and $\gamma$SF of $^{70}$Zn extracted using the Shape and $\beta$-Oslo methods from both $\beta$-decaying states in $^{70}$Cu will be presented, along with the resulting implications for the nature of the LEE from their comparison.
| Contribution category |
Experiment
|
| Presenter status |
Postdoc
|
Eleanor Ronning
(INFN-Padova)
Adam Hartley
(University of Mt Union)
Adriana Sweet
(Lawrence Livermore National Laboratory)
Amelia Doetsch
(FRIB/MSU)
Andrea Richard
(Ohio University, Facility for Rare Isotope Beams)
Ann-Cecilie Larsen
(University of Oslo)
Artemis Spyrou
(Michigan State University)
Artemis Tsantiri
(University of Regina)
Beau Greaves
(INFN-LNL)
Ben Crider
(Mississippi State University)
Chandana Sumithrarachchi
(Facility for Rare Isotope Beams)
Chris Izzo
(Facility for Rare Isotope Beams)
Christian Ireland
(FRIB/MSU)
Darren Bleuel
(LLNL)
Dennis Mücher
(University of Cologne)
Dustin Scriven
(Facility for Rare Isotope Beams)
Erin Good
(Pacific Northwest National Laboratory)
Franziska Maier
(Facility for Rare Isotope Beams)
Gerard Owens-Fryar
(FRIB/MSU)
Hannah Berg
(FRIB/MSU)
Hannah Erington
(FRIB/MSU)
Honey Arora
(CENS/IBS)
James Huffman
(FRIB/MSU)
Jessica Berkman
(FRIB/MSU)
Johann-Emil Larsson
(TU Darmstadt/GSI)
Konstantinos Bosmpotinis
(FRIB/MSU)
Kyle Taft
(University of Notre Dame)
Mallory Smith
(Facility for Rare Isotope Beams)
Mathis Wiedeking
(Lawrence Berkeley National Laboratory)
Matthew Mumpower
(Los Alamos National Laboratory)
Mejdi Mogannam
(Air Force Institute of Technology)
Nadeesha Gamage
(Facility for Rare Isotope Beams)
Paul DeYoung
(Hope College)
Rahul Jain
(Lawrence Livermore National Laboratory)
Rebeka Lubna
(Facility for Rare Isotope Beams)
Robin Coleman
(University of Guelph)
Ryan Ringle
(FRIB/MSU)
Scott Campbell
(FRIB/MSU)
Sean Liddick
(FRIB/MSU)
Sivahami Uthayakumaar
(Facility for Rare Isotope Beams)
Tawfik Gaballah
(Mississippi State University)
Timilehin Ogunbeku
(Lawrence Livermore National Laboratory)
Xiangcheng Chen
(Facility for Rare Isotope Beams)
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