A review of evidence on the properties of the A= 12 nuclei, with emphasis on material
leading to information about the structure of the A= 12 systems.

The formal theories of breakup reactions are reviewed. The direct breakup mechanism that
is formulated within the framework of the post-form distorted-wave Born approximation, is …

I examine the history and current state of knowledge of the structure of so-called “exotic” light
nuclei with Z= 2-4, from 7 He to 16 Be. I review the available experimental information and …

The nuclear charge radius of Be 12 was precisely determined using the technique of
collinear laser spectroscopy on the 2 s 1/2→ 2 p 1/2, 3/2 transition in the Be+ ion. The mean …

The structure of the Borromean nucleus Be 9 (α+ α+ n) is addressed within a three-body
approach using the analytical transformed harmonic oscillator method. The three-body …

The s-wave neutron fraction of the 0+ levels in 12Be has been investigated for the first time
through the 11Be (d, p) transfer reaction using a 5A MeV11Be beam at TRIUMF, Canada …

A new 11 Be (d, p) 12 Be transfer reaction experiment was carried out in inverse kinematics
at 26.9A MeV, with special efforts devoted to the determination of the deuteron target …

We present a novel technique for studying the quenching of shell gaps in exotic isotopes.
The method is based on extracting Gamow-Teller (Δ L= 0, Δ S= 1) transition strengths [B …

A new one-neutron adding reaction on Be 11 was performed at 26.9 A MeV. The elastic-
scattering data was measured simultaneously to determine the target component and optical …

A resonant state at 3. 21− 0.04+ 0.12 MeV, located just above the one-neutron separation
threshold, was observed for the first time in Be 12 from the Be 11 (d, p) Be 12 one-neutron …