Complete decay spectroscopy of 54Sc at FRIB

ORAL

Abstract

The study of nuclear isomers provides crucial insights into nuclear models and the evolution of shell structure in neutron-rich nuclei. The decay properties of these isomers are essential for their characterization and can serve as sensitive probes to changes in the nuclear structure of these exotic nuclei.

In two separate FRIB experiments, excited states in 54Sc, including a newly identified nanosecond isomer, were populated. These experiments involved the production and delivery of a cocktail of neutron-rich nuclei around 54Ca to two distinct high-resolution and total absorption focal planes at the FRIB Decay Station initiator (FDSi), allowing for a complete decay spectroscopy of 54Sc.

Newly measured and re-evaluated decay properties of these states will be presented, and the structure of 54Sc will be discussed in the context of proton-neutron coupling at N = 33, with inferences drawn from comparisons with shell-model and ab-initio calculations.

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Presenters

  • Timilehin H Ogunbeku

    Lawrence Livermore National Laboratory

Authors

  • Timilehin H Ogunbeku

    Lawrence Livermore National Laboratory

  • James M Allmond

    Oak Ridge National Laboratory, Oak Ridge National Lab

  • Timothy Gray

    University of Tennessee

  • Wei Jia Ong

    Lawrence Livermore Natl Lab, Lawrence Livermore National Lab

  • Robert K. Grzywacz

    University of Tennessee

  • Bertis C Rasco

    Oak Ridge National Laboratory

  • Hendrik Schatz

    Michigan State University

  • Bradley M Sherrill

    Michigan State University

  • Oleg B. Tarasov

    Michigan State University

  • Angela Gargano

    Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo

  • Jason D Holt

    TRIUMF

  • Augusto Osvaldo Macchiavelli

    Oak Ridge National Laboratory

  • Takayuki Miyagi

    Technische Universität Darmstadt

  • Honey Arora

    Central Michigan University

  • Akaa Daniel Ayangeakaa

    University of North Carolina at Chapel Hill, TUNL, University of North Carolina at Chapel Hill

  • Hannah C. C Berg

    FRIB

  • J M Berkman

    FRIB

  • Darren L Bleuel

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Konstantinos Bosmpotinis

    FRIB

  • James M Christie

    University of Tennessee

  • Ian C Cox

    University of Tennessee

  • Heather L Crawford

    Lawrence Berkeley National Laboratory

  • Benjamin Crider

    Mississippi State University

  • Jacob O Davis

    Pacific Northwest National Laboratory (PNNL)

  • Cade Thomas Dembski

    University of Notre Dame, Michigan State University

  • Amelia Doetsch

    Michigan State University

  • J G Duarte

    LLNL

  • Alfredo Estrade

    Central Michigan University

  • Aleksandra Fijalkowska

    University of Warsaw

  • Tawfik Mohammed Mosaad Gaballah

    Mississippi State University

  • Erin C Good

    Pacific Northwest National Laboratory, Pacific Northwest National Laboratory (PNNL)

  • Kenny Haak

    Michigan State University

  • Adam Hartley

    Michigan State University

  • Kirby Hermansen

    National Superconducting Cyclotron Laboratory, MSU

  • Daniel E Hoff

    Lawrence Livermore National Laboratory

  • Donnie T Hoskins

    University of Tennessee Knoxville, University of Tennessee

  • Rahul Jain

    Michigan State University

  • Marek Karny

    University of Warsaw

  • Thomas T King

    Oak Ridge National Laboratory

  • Noritaka Kitamura

    University of Tennessee-Knoxville & University of Tokyo, University of Tennessee

  • Kay Kolos

    LLNL, Lawrence Livermore National Laboratory

  • Alexander M Laminack

    Oak Ridge National Laboratory

  • Sean N Liddick

    Facility for Rare Isotope Beams, Michigan State University

  • Brenden Longfellow

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Rebeka Lubna

    FRIB, Facility for Rare Isotope Beams

  • Stephanie M Lyons

    Pacific Northwest National Laboratory, Pacific Northwest National Laboratory (PNNL)

  • Miguel Madurga

    University of Tennessee

  • Mejdi J Mogannam

    Facility for Rare Isotope Beams, Michigan State University

  • Jordan Jordan Owens-Fryar

    Facility for Rare Isotope Beams, Michigan State University, Michigan State University

  • Shree K Neupane

    University of Tennessee

  • Mustafa M Rajabali

    Tennessee Technological University

  • Andrea L Richard

    Ohio University

  • Eleanor K Ronning

    Michigan State University

  • Gregory Rose

    Ucal

  • Thomas Joseph Ruland

    Oak Ridge National Laboratory

  • Krzysztof Piotr Rykaczewski

    Oak Ridge National Lab, Oak Ridge National Laboratory

  • Nicholas David Scielzo

    Lawrence Livermore National Laboratory

  • Dustin P Scriven

    Texas A&M University

  • Artemis Spyrou

    Michigan State University

  • Shutaro Hanai

    University of Tokyo, Wako

  • J Huffman

    Michigan State University

  • Maninder Singh

    University of Tennessee

  • michal Stepaniuk

    University of Warsaw

  • Adriana Sweet

    University of California, Berkeley

  • Artemis Tsantiri

    Michigan State University, Facility for Rare Isotope Beams, Michigan State University

  • Sivahami Uthayakumaar

    Michigan State University

  • William B Walters

    University of Maryland College Park, University of Maryland, College Park

  • Shane W Watters

    Michigan State University, FRIB

  • Zhengyu Xu

    University of Tennessee, University of Tennessee Knoxville

  • Rin Yokoyama

    University of Tokyo

  • Christoforos Frantzis

    FRIB

  • Jayden Ratcliffe

    Mississippi State University