Catalin Matei

Halo Nucleus Be11: A Spectroscopic Study via Neutron Transfer

The best examples of halo nuclei, exotic systems with a diffuse nuclear cloud surrounding a tightly bound core, are found in the light, neutron-rich region, where the halo neutrons experience only weak binding and a weak, or no, potential barrier. Modern direct-reaction measurement techniques provide powerful probes of the structure of exotic nuclei. Despite more than four decades of these studies on the benchmark one-neutron halo nucleus 11Be, the spectroscopic factors for the two bound states remain poorly constrained. In the present work, the 10Be d;p reaction has been used in inverse kinematics at four beam energies to study the structure of 11Be. The spectroscopic factors extracted using the adiabatic model were found to be consistent across the four measurements and were largely insensitive to the optical potential used. The extracted spectroscopic factor for a neutron in an n j 2s1=2 state coupled to the ground state of 10Be is 0.71(5). For the first excited state at 0.32 MeV, a spectroscopic factor of 0.62(4) is found for the halo neutron in a 1p1=2 state.

Reactions of a 10 Be beam on proton and deuteron targets

The extraction of detailed nuclear structure information from transfer reactions requires reliable, well-normalized data, as well as optical potentials and a theoretical framework demonstrated to work well in the relevant mass and beam energy ranges. It is rare that the theoretical ingredients can be tested well for exotic nuclei owing to the paucity of data. The halo nucleus

Measurements of branching ratios from the 7.12-MeV state inO16and theC12(α,γ)O16reaction cross section

{}^{11}

Digital Electronics For The Versatile Array Of Neutron Detectors At Low Energies

Be has been examined through the

Studies of Nuclei Close to 132Sn Using Single-Neutron Transfer Reactions

{}^{10}

Development of ORRUBA: A Silicon Array for the Measurement of Transfer Reactions in Inverse Kinematics

Be(

Neutron Transfer Reactions: Surrogates for Neutron Capture for Basic and Applied Nuclear Science

d,p

Development of a Versatile Array of Neutron Detectors at Low Energy

) reaction in inverse kinematics at equivalent deuteron energies of

Level structure of

12,\phantom{\rule{0.28em}{0ex}}15,\phantom{\rule{0.28em}{0ex}}18,

^{19}

and