Eur.Phys.J. A 54, 44 (2018)

F.Ferraro, for the LUNA Collaboration

A high-efficiency gas target setup for underground experiments, and redetermination of the branching ratio of the 189.5 keV ²²Ne(p, γ)²³Na resonance

NUCLEAR REACTIONS ²²Ne(p, γ), E=189.5 keV; measured Eγ, Iγ, total Eγ using γ-ray calorimeter formed by 4π BGO using windowless gass target (at different pressures) within deep underground LNGS (Gran Sasso Natl. Lab.) LUNA; deduced γ-ray single sum energy spectrum gated on add-back sum peak between 8.0 and 9.7 MeV, resonances including predicted resonances at 156.2, 189.5 and 259.7 keV, branching ratios.

doi: 10.1140/epja/i2018-12476-7