Lawrence Livermore National Laboratory



Nicholas Scielzo

Executive Summary

We are developing approaches needed to determine neutron-induced reactions on radioactive isotopes for experiments at the Facility for Rare Ion Beams. We will develop direct measurement techniques for long-lived radioisotopes, indirect approaches for isotopes too short-lived to be accessed with direct measurements, and a microscopic and unified description of reacting nuclei that moves beyond empirical models.

Publications and Presentations

Dreyfuss, A. C., et al., 2018. "Clustering and Alpha-Capture Reaction Rates from First-Principle Structure Calculations for Nucleosynthesis." State of the Art in Nuclear Cluster Physics. LLNL-PROC-755912.

Escher, J. E. 2018. "Capture Cross Sections for Unstable Isotopes from Surrogate Reaction Data and Theory." 15th Varenna Conference on Nuclear Reaction Mechanisms, Villa Monastero, June 2018. LLNL-ABS-745500.

——— . 2018. "Neutron Capture Cross Sections for Short-Lived Nuclei from Surrogate Reaction Data and Theory." Nuclear Structure 2018, East Lansing, MI, August 2018. LLNL-ABS-752022.

Fronczyk, K. M. and J. E. Escher. 2018. "Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data." Joint Statistical Meetings, Vancouver, BC, July 2018. LLNL-ABS-749458.

Gorton, O. C. and J. E. Escher. 2018. "Neutron Capture from Surrogate Reaction Data: Assessing Model Uncertainties." Compound-Nuclear Reactions and Related Topics, Berkeley, CA, Sept. 2018. LLNL-ABS-754291.

Jones, M. D., et al., 2018. "Examination of the Low-Energy Enhancement of the Gamma-Ray Strength Function of 56Fe." Physical Review C. 97. 024327. LLNL-JRNL-758362.

Liddick, S., et al. 2018. "Nuclear Astrophysics with Radioactive Beams." 6th International Conference on Fission and Properties of Neutron-Rich Nuclei. LLNL-ABS-758657.

Loveless, C. S., et al., 2018. "Harvesting 48V at a Radioactive Beam Facility." American Chemical Society 225th Annual Meeting, New Orleans, LA, March 2018. LLNL-ABS-739442.

Mercenne, A., et al. 2018. "A New Ab Initio Approach for Nuclear Reactions Based on the Symmetry-Adapted No-Core Shell Model." GANIL Topical Meeting: Nuclear Structure and Reactions for the 2020s, Caen, France, Oct. 2018. LLNL-ABS-751669.

Ratkiewicz, A., et al. 2018. "Towards Neutron Capture on Exotic Nuclei: Demonstrating the (d,p) Reaction as a Surrogate for (eta,gamma)." Compound-Nuclear Reactions and Related Topics, Berkeley, CA, Sept. 2018. LLNL-ABS-752504.

Shusterman, J., et al. 2018. "Isotope Harvesting of 88Zr for Neutron-Capture Cross-Section Measurements." American Chemical Society 225th Annual Meeting, New Orleans, LA, March 2018. LLNL-ABS-740274.

——— . 2018. "Isotope Harvesting of 88Zr and the Measurement of its Neutron-Capture Cross Section." MARC, Kailua-Kona, HI, April 2018. LLNL-ABS-743182.

Tonchev, A., et al., 2018. "Pygmy and Core Polarization Dipole Modes in 206Pb:Connecting Nuclear Structure to Stellar Astrophysics." Pays. Lett. B. 773. 20. LLNL-JRNL-716577.

——— . 2018. "The s-Process branching-point at 205PB." Fall Meeting of the APS Division of Nuclear Physics, Pittsburgh, PA, October, 2017. LLNL-ABS-734221.