Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session MD: Light Elements in Nuclear Astrophysics
2:00 PM–4:30 PM,
Saturday, October 27, 2018
Hilton
Room: Kohala 3
Chair: Carl Brune, Ohio University
Abstract ID: BAPS.2018.HAW.MD.7
Abstract: MD.00007 : High energy density plasma experiments to study the T+T and 3He+3He six-nucleon systems at OMEGA and the NIF*
3:30 PM–3:45 PM
Presenter:
Maria Gatu Johnson
(Massachusetts Inst of Tech-MIT)
Authors:
Maria Gatu Johnson
(Massachusetts Inst of Tech-MIT)
Alex Zylstra
(Los Alamos National Laboratory)
Andrew Bacher
(Indiana Univ - Bloomington)
Carl Richard Brune
(Ohio Univ)
Daniel Casey
(Lawrence Livermore National Laboratory)
Chad Forrest
(Laboratory for Laser Energetics)
Matthias Hohenberger
(Lawrence Livermore National Laboratory)
Daniel Sayre
(Lawrence Livermore National Laboratory)
Steve Craxton
(Laboratory for Laser Energetics)
Johan Frenje
(Massachusetts Inst of Tech-MIT)
Warren Garbett
(AWE)
Emma Garcia
(Laboratory for Laser Energetics)
Vladimir Glebov
(Laboratory for Laser Energetics)
Gerald M Hale
(Los Alamos Natl Lab)
Martin Hoppe
(General Atomics)
Brandon J Lahmann
(Massachusetts Inst of Tech-MIT)
Dennis Paul McNabb
(Lawrence Livermore Natl Lab)
Mark W Paris
(Los Alamos Natl Lab)
Richard Petrasso
(Massachusetts Inst of Tech-MIT)
Jesse Pino
(Lawrence Livermore Natl Lab)
Bruce Remington
(Lawrence Livermore Natl Lab)
Michael Schoff
(General Atomics)
Hong Sio
(Massachusetts Institute of Technology)
Christian Stoeckl
(Laboratory for Laser Energetics)
Heather Whitley
(Lawrence Livermore Natl Lab)
Thermonuclear reaction rates and nuclear processes are explored traditionally in accelerator experiments, which are difficult to execute at conditions relevant to Stellar and Big Bang Nucleosynthesis. High-Energy-Density (HED) plasmas mimic astrophysical environments and can complement accelerator experiments. We describe HED experiments1,2 to study the T+T reaction at the OMEGA laser, and the 3He+3He reaction at the National Ignition Facility (NIF). Neutron spectra from the T+T reaction at ion temperatures from 4 to 18 keV, corresponding to center-of-mass (c-m) energies from 16 to 50 keV, show the 5He ground state resonant peak at 8.6 MeV being stronger at the higher than at the lower energy.3 This indicates a reaction mechanism that must involve resonances and/or higher angular momenta than L=0. Preliminary 3He+3He reaction data at c-m energies from 60-120 keV also indicate that the underlying physics changes with c-m energy.
[1] M. Gatu Johnson et al., Phys. Plasmas 24, 041407 (2017).
[2] M. Gatu Johnson et al., Phys. Plasmas 25, 056303 (2018).
[3] M. Gatu Johnson et al., submitted to Phys. Rev. Lett. (2018).
*This work was supported in part by the US DOE, LLE, and LLNL.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.MD.7
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