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Democratic decay of 6Be exposed by correlations
I A Egorova1, R J Charity, L V Grigorenko
1Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna 141980, Russia.
Physical Review Letters
|December 11, 2012
Summary
Researchers studied the decay of Beryllium-6 (6Be) using neutron knockout reactions. Experimental data on the alpha+proton+proton decay channel validated a three-cluster model for democratic decay mechanisms.
Area of Science:
- Nuclear Physics
- Quantum Mechanics
- Particle Physics
Background:
- Investigating the properties of light nuclei like Beryllium-6 (6Be) is crucial for understanding nuclear structure and reaction mechanisms.
- Neutron knockout reactions provide a powerful tool to probe exotic nuclei and their decay pathways.
Purpose of the Study:
- To investigate the three-body decay mechanism of the ground and first excited states of Beryllium-6 (6Be).
- To analyze the alpha+proton+proton decay channel and extract correlations from experimental data.
- To validate theoretical models describing the democratic decay of light nuclei.
Main Methods:
- Utilizing a 70-MeV/nucleon (7)Be beam interacting with a Beryllium (Be) target.
- Employing the High Resolution Array (HRA) to detect the three-body decay products (alpha, proton, proton).
- Analyzing precise three-body correlations within the experimental data.
Main Results:
- Observed and analyzed the democratic decay of Beryllium-6 (6Be) into the alpha+proton+proton channel.
- Extracted detailed three-body correlation data from the experiment.
- Demonstrated good agreement between experimental correlation data and theoretical calculations.
Conclusions:
- The study provides significant insights into the mechanism of three-body democratic decay in light nuclei.
- The three-cluster model is validated as an accurate theoretical approach for describing these decay processes.
- Experimental data from the High Resolution Array confirm the predictive power of the three-cluster model across a range of energies.
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