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Updated: Aug 18, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Direct observation of the ... 4+-to-2+ ... [corrected] gamma transition in 8Be
V M Datar1, Suresh Kumar, D R Chakrabarty
1Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai-400 085, India.
Abstract:
Electromagnetic transition rates provide an important test for nuclear structure models. The nucleus 8Be exhibits a pronounced alpha-cluster structure and is a building block for more complex cluster nuclei. Here we report on the first observation of the gamma transition between the 4(+) and 2(+) states of 8Be in the 4He+4He reaction. The measured on-resonance cross section of 165+/-54 nb leads to a B(E2) of25+/-8e(2) fm(4), in good agreement with alpha-cluster models and sophisticated ab initio structure calculations.
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