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Title: Using inertial fusion implosions to measure the T + He 3 fusion cross section at nucleosynthesis-relevant energies

Journal Article · · Physical Review Letters
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [2];  [3];  [2];  [3];  [4]; ORCiD logo [2];  [5];  [6];  [7];  [7];  [7];  [8];  [9];  [8];  [7];  [3];  [7] more »;  [3];  [7];  [3] « less
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  4. AWE plc, Reading (United Kingdom)
  5. Indiana Univ., Bloomington, IN (United States)
  6. Ohio Univ., Athens, OH (United States)
  7. Univ. of Rochester, Rochester, NY (United States)
  8. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  9. General Atomics, San Diego, CA (United States)

Light nuclei were created during big-bang nucleosynthesis (BBN). Standard BBN theory, using rates inferred from accelerator-beam data, cannot explain high levels of 6 Li in low-metallicity stars. Using high-energy-density plasmas we measure the T ( 3 He , γ ) 6 Li reaction rate, a candidate for anomalously high 6 Li 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:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
LLNL; LLE; FSC; NLUF; National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396; NA0001857; FC52-08NA28752; FG02-88ER40387; NA0001837; B597367; 20150717PRD2; 415935- G; NA0002035; NA0002726; NA0002949; AC52-07NA27344
OSTI ID:
1341857
Alternate ID(s):
OSTI ID: 1261687; OSTI ID: 1266027; OSTI ID: 1266028; OSTI ID: 1266029; OSTI ID: 1374516
Report Number(s):
LA-UR-15-29245; LLNL-JRNL-734488; PRLTAO; TRN: US1701791
Journal Information:
Physical Review Letters, Vol. 117, Issue 3; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (4)

Thermonuclear reactions probed at stellar-core conditions with laser-based inertial-confinement fusion journal August 2017
Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states journal September 2018
Optimization of a high-yield, low-areal-density fusion product source at the National Ignition Facility with applications in nucleosynthesis experiments journal May 2018
Improved calibration of the OMEGA gas Cherenkov detector journal December 2019