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Keywords
(8)
Big Bang
Body Waves
Cross Section
Elementary Particles
Ground State Solution
Low Energy
Monte Carlo Method
Variational Monte Carlo Method
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Sixbody calculation of the Î±deuteron radiative capture cross section
Sixbody calculation of the Î±deuteron radiative capture cross section,10.1103/PhysRevC.63.024003,Physical Review C,K. M. Nollett,R. B. Wiringa,R. Sc
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Sixbody calculation of the Î±deuteron radiative capture cross section
(
Citations: 4
)
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K. M. Nollett
,
R. B. Wiringa
,
R. Schiavilla
We have computed the
cross section
for the process d(Î±,Î³)â¶Li at the low energies relevant for primordial nucleosynthesis and comparison with laboratory data. The final state is a sixbody wave function generated by the
variational Monte Carlo method
from the Argonne vââ and Urbana IX potentials, including improved treatment of largeparticleseparation behavior. The initial state is built up from the Î±particle and deuteron groundstate solutions for these potentials, with phenomenological descriptions of scattering and cluster distortions. The dominant E2
cross section
is in reasonable agreement with the laboratory data. Including centerofenergy and other small corrections, we obtain an E1 contribution which is larger than the measured contribution at 2 MeV by a factor of 7. We calculate explicitly the impulseapproximation M1 contribution, which is expected to be very small, and obtain a result consistent with zero. We find little reason to suspect that the
cross section
is large enough to produce significant â¶Li in the big bang.
Journal:
Physical Review C  PHYS REV C
, vol. 63, no. 2, pp. 024003024003, 2001
DOI:
10.1103/PhysRevC.63.024003
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Citation Context
(1)
...[
8
], 3H(α, γ)7Li, and 3He(α, γ)7Be [9] ‐ that can all be computed as direct captures at energies be...
Kenneth M. Nollett
.
Toward ab initio calculations of astrophysical reaction rates
References
(1)
Theoretical Nuclear and Subnuclear Physics
(
Citations: 115
)
J. Dirk Walecka
,
Gerald A. Miller
Journal:
Physics Today  PHYS TODAY
, vol. 49, no. 2, 1996
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Citations
(4)
The longlived stau as a thermal relic
(
Citations: 1
)
Josef Pradler
Published in 2009.
Nuclear quantum Monte Carlo: Expanding into the continuum
K. M. Nollett
Journal:
Fewbody Systems  FEWBODY SYST
, vol. 43, no. 1, pp. 143148, 2008
Toward ab initio calculations of astrophysical reaction rates
Kenneth M. Nollett
Published in 2008.
"Neutron matter at zero
H. Kamada
,
A. Nogga
,
W. Glöckle
,
E. Hiyama
,
M. Kamimura
,
F. Pederiva