https://doi.org/10.1140/epja/i2019-12816-1
Regular Article - Experimental Physics
Experimental cross section and angular distribution of the 2H(p,
)3He reaction at Big-Bang nucleosynthesis energies
1
Jožef Stefan Institute, SI-1000, Ljubljana, Slovenia
2
Faculty of Mathematics and Physics, University of Ljubljana, SI-1000, Ljubljana, Slovenia
3
Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128, Mainz, Germany
4
GSI Helmholtzzentrum für Schwerionenforschung GmbH, DE-64291, Darmstadt, Germany
* e-mail: isabela.tisma@ijs.si
Received:
28
March
2019
Accepted:
30
June
2019
Published online:
26
August
2019
The cross section for the 2H(p,)3He reaction was measured in the energy range E = 47–210 keV, relevant for primordial nucleosynthesis. A proton beam was incident on two deuterated titanium targets. The angular distribution of emitted 
-rays was determined using two HPGe detectors, placed at 
and 
with respect to the incident beam direction. Results were compared with the latest ab initio theoretical calculation, including one- and many-body contributions. The predicted cross section and astrophysical S-factor are found to be in a very good agreement with measured values.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019
