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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.

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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.