https://doi.org/10.1140/epja/s10050-020-00293-8
Regular Article – Theoretical Physics
He(
He,
He)
He as a three-body reaction via a continuum resonance in the n+
He system
A tribute to Mahir S. Hussein
1
Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289, Darmstadt, Germany
2
GSI Helmholtzzentrum für Schwerionenforschung GmbH, Theorie, Planckstraße 1, 64291, Darmstadt, Germany
Received:
6
October
2020
Accepted:
22
October
2020
Published online:
6
November
2020
The He(
He,
He)
He reaction involving the unstable
He nucleus is a possible process in primordial nucleosynthesis to convert
He into
He in a neutron transfer reaction. Since experimental data for the reaction cross section are not available, a theoretical prediction is needed to estimate the relevance of this process in comparison to other reactions, e.g.,
He(
H,p)
He or
H(
H,n)
He. In this work the cross section and the Maxwellian-averaged transition rate of the
He(
He,
He)
He reaction are calculated using a post-form distorted-wave Born approximation in a simple cluster model. For that purpose the reaction is treated as a genuine process with three particles,
, in the entrance channel proceeding through the
resonance in the
He scattering continuum.
© The Author(s) 2020
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