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Investigating the effects of precise mass measurements of Ru and Pd isotopes on machine learning mass modeling

Journal Article · · Physical Review. C
 [1];  [2];  [3];  [4];  [5];  [6];  [1];  [7];  [7];  [1];  [4];  [8];  [1];  [7];  [6];  [6];  [9];  [1];  [10];  [11] more »;  [6];  [12] « less
  1. University of Notre Dame, IN (United States)
  2. University of Notre Dame, IN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
  3. Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Manitoba, Winnipeg, MB (Canada); TRIUMF, Vancouver, BC (Canada)
  4. Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Manitoba, Winnipeg, MB (Canada)
  5. University of Notre Dame, IN (United States); University of California, Berkeley, CA (United States)
  6. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  7. Argonne National Laboratory (ANL), Argonne, IL (United States)
  8. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  9. Argonne National Laboratory (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)
  10. Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States)
  11. Univ. of Manitoba, Winnipeg, MB (Canada)
  12. Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States); Univ. of Washington, Seattle, WA (United States)
+ Show Author Affiliations
Atomic masses are a foundational quantity in our understanding of nuclear structure, astrophysics, and fundamental symmetries. The longstanding goal of creating a predictive global model for the binding energy of a nucleus remains a significant challenge, however, and prompts the need for precise measurements of atomic masses to serve as anchor points for model developments. We present precise mass measurements of neutron-rich Ru and Pd isotopes performed at the Californium Rare Isotope Breeder Upgrade facility at Argonne National Laboratory using the Canadian Penning Trap mass spectrometer. The masses of 108Ru, 110Ru, and 116Pd were measured to a relative mass precision $$\delta$$⁢$$m/m$ ≈ 10-8 via the phase-imaging ion-cyclotron-resonance technique, and represent an improvement of approximately an order of magnitude over previous measurements. Further, these mass data were used in conjunction with the physically interpretable machine learning (PIML) model, which uses a mixture density neural network to model mass excesses via a mixture of Gaussian distributions. The effects of our new mass data on a Bayesian-updating of a PIML model are presented.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Argonne Tandem Linac Accelerator System (ATLAS); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
89233218CNA000001; AC02-06CH11357; AC52-07NA27344
OSTI ID:
2565921
Alternate ID(s):
OSTI ID: 2473516
OSTI ID: 2572934
Report Number(s):
LA-UR--24-23295; 192320
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 3 Vol. 110; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

Development and operation of gas catchers to thermalize fusion–evaporation and fragmentation products journal May 2003
A broad-application microchannel-plate detector system for advanced particle or photon detection tasks: large area imaging, precise multi-hit timing information and high detection rate
  • Jagutzki, O.; Mergel, V.; Ullmann-Pfleger, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 477, Issue 1-3 https://doi.org/10.1016/S0168-9002(01)01839-3
journal January 2002
Nuclear ground-state masses and deformations: FRDM(2012) journal May 2016
Radioactive beams from gas catchers: The CARIBU facility journal October 2008
A compact high-resolution isobar separator for the CARIBU project journal October 2008
First operation and mass separation with the CARIBU MR-TOF journal June 2016
Improving the measurement sensitivity of the Canadian Penning Trap mass spectrometer through PI-ICR journal January 2020
Surface diffuseness correction in global mass formula journal June 2014
Atomic masses with machine learning for the astrophysical r process journal January 2024
The Canadian Penning Trap Spectrometer at Argonne journal January 2001
The AME 2020 atomic mass evaluation (II). Tables, graphs and references* journal March 2021
Beyond the proton drip line: Bayesian analysis of proton-emitting nuclei journal January 2020
Spin-trap isomers in deformed, odd-odd nuclei in the light rare-earth region near N = 98 journal July 2020
Searching for the origin of the rare-earth peak with precision mass measurements across Ce–Eu isotopic chains journal May 2022
Nuclear masses learned from a probabilistic neural network journal July 2022
Physically interpretable machine learning for nuclear masses journal August 2022
Nuclear mass predictions with machine learning reaching the accuracy required by r -process studies journal August 2022
Microscopic mass formulas journal July 1995
Precision mass measurements of neutron-rich Tc, Ru, Rh, and Pd isotopes journal June 2007
Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII. Stiffness and stability of neutron-star matter journal September 2010
Nuclear mass predictions for the crustal composition of neutron stars: A Bayesian neural network approach journal January 2016
Phase-Imaging Ion-Cyclotron-Resonance Measurements for Short-Lived Nuclides journal February 2013
Set of Nuclear-Mass Relations and a Resultant Mass Table journal October 1969
Geonium theory: Physics of a single electron or ion in a Penning trap journal January 1986
Mean shift: a robust approach toward feature space analysis journal May 2002
Deep Neural Networks and the Phenomenology of Super-Heavy Nuclei journal April 2022
Penning-Trap Mass Measurements in Atomic and Nuclear Physics journal October 2018
Bayesian averaging for ground state masses of atomic nuclei in a Machine Learning approach journal July 2023

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTRONOMY AND ASTROPHYSICS
90 ≤ A ≤ 149
Machine learning
Mass spectrometry
Penning traps
Radioactive beams