Abstract.
The cross section for the 2H(p,\(\gamma\))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 \( \gamma\)-rays was determined using two HPGe detectors, placed at \( 90^{\circ}\) and \( 135^{\circ}\) 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.
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Communicated by C. Broggini
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Tišma, I., Lipoglavšek, M., Mihovilovič, M. et al. Experimental cross section and angular distribution of the 2H(p,\(\gamma\))3He reaction at Big-Bang nucleosynthesis energies. Eur. Phys. J. A 55, 137 (2019). https://doi.org/10.1140/epja/i2019-12816-1
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DOI: https://doi.org/10.1140/epja/i2019-12816-1