Conveners
HIE-ISOLDE physics
- Liam Gaffney (CERN)
Nuclear systems such as 6He, 11Li or 11Be are known to have an extended neutron distribution, the so-called neutron halo. The halo can be formed in nuclei close to the neutron drip line, where the separation energy of valence neutrons is small and the nuclear barrier becomes thin enough for the neutrons to tunnel out with larger probability. This effect enhances the diffuseness of the nuclear...
In this contribution, preliminary results of the experiment IS616 will be presented. The aim of the experiment was to investigate on the reaction dynamics of proton-halo induced collisions at energies around the Coulomb barrier where coupling to continuum effects are expected to be important. The elastic scattering $^8$B+$^{64}$Zn angular distribution was measured, for the first time, using...
The IS559 experiment is the first ever attempt of utilising the Oslo Method with a radioactive beam in inverse kinematics reactions. A $^{66}$Ni beam with 4.5 MeV/u hit a deuterated polyethylene target for a total of ≈ 10 days. The ultimate goal of the experiment is to look for particle-gamma coincidences from the d($^{66}$Ni,p)$^{67}Ni reaction, reconstructing the excitation energy from the...
The first two physics experiments using the ISOLDE Solenoidal Spectrometer (ISS) have both been a success. This talk will present the final results from the two measurements made before LS2. The $^{28}$Mg(d,p)$^{29}$Mg reaction, carried out at 9.5 MeV/u, probed single-particle structure near the island of inversion. This measurement revealed the structure of the low-lying negative-parity...
In the so-called “Island of Inversion” around 32Mg, the ground states of nuclei exhibit larger binding energy than expected from simple models. Extra binding energy can stem from the onset of deformation. Indeed, the systematics of excitation energies and B(E2) values in the Mg isotopes indicate a softening of the N=20 shell closure and it was suggested that the nuclear tensor force has a...
The transfer and breakup nuclear reactions involving loosely bound light stable and unstable nuclei have interesting consequences in nuclear astrophysics. In particular, reactions with $^{7}$Be are linked to the cosmological lithium problem. Detailed studies of $^7$Be destruction channels are required before one can invoke solutions to the lithium problem beyond nuclear physics, particularly...
