Using Inertial Fusion Implosions to Measure the T + 3 He Fusion Cross Section at Nucleosynthesis-Relevant Energies

Dataset · Thu Oct 25 00:00:00 EDT 2018

DOI:https://doi.org/10.7910/DVN/PC8YLN· OSTI ID:1880239

Zylstra, A. B.; Herrmann, H. W.; Johnson, M. Gatu; Kim, Y. H.; Frenje, J. A.; Hale, G.; Li, C. K.; Rubery, M.; Paris, M.; Bacher, A.; Brune, C. R.; Forrest, C.; Glebov, V. Yu.; Janezic, R.; McNabb, D.; Nikroo, A.; Pino, J.; Sangster, T. C.; Séguin, F. H.; Seka, W. ; Sio, H.; Stoeckl, C.; Petrasso, R. D.

Light nuclei were created during big-bang nucleosynthesis (BBN). Standard BBN theory, using rates inferred from accelerator-beam data, cannot explain high levels of Li6 in low-metallicity stars. Using high-energy-density plasmas we measure the T(He3,?)Li6 reaction rate, a candidate for anomalously high Li6 production; we find that the rate is too low to explain the observations, and different than values used in common BBN models. This is the first data directly relevant to BBN, and also the first use of laboratory plasmas, at comparable conditions to astrophysical systems, to address a problem in nuclear astrophysics.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center; Ohio Univ., Athens, OH (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: NA0001857; FC52-08NA28752; FG02-88ER40387; NA0001837; AC52-06NA25396; NA0002035
• OSTI ID: 1880239
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
79 ASTRONOMY AND ASTROPHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS