RT Dissertation/Thesis
T1 Study of transfer reactions induced by a 16C beam
A1 Pereira López, Xesús
K1 Nuclear Structure
K1 Transfer reactions
K1 Halo nuclei
K1 Silicon and Germanium detectors
AB Recent experiments have evidenced the existence of new nuclear shell gaps at N=14 and N=16 inneutron-rich oxygen isotopes associated with the vanishing of the N=20 shell gap. However, in theneutron-rich carbon isotopes, the extent to which these gaps persist is unclear. In an effort toanswer this question we have attempted to probe the low-lying level structure of 17C using the(d,p) transfer reaction to locate the single-particle orbitals involved in the formation of the N=14 andN=16 shell gaps.The experiment was carried out at the GANIL facility. A 16C beam at 17.2 AMeV produced byfragmentation was used to bombard a CD2 target. The light ejectiles were detected using theTIARA silicon strip array while a Si-Si-CsI telescope was placed at zero degrees to identifybeam-like residues. In addition, four HPGe-EXOGAM clover detectors were used to measure thegamma-rays arising from 17C bound excited states.The measured angular distributions confirm the spin and parity assignments of 3/2+, 1/2+ and 5/2+for the ground and the first and second excited states located at 217 keV and 335 keV respectively.The spectroscopic factors deduced for these excited states indicate a large single particle strength,in agreement with shell model calculations. With a strong l = 0 valence neutron component and alow separation energy, the first excited state of 17C appears as a good one-neutron halocandidate.
YR 2016
FD 2016
LK http://hdl.handle.net/10347/15161
UL http://hdl.handle.net/10347/15161
LA eng
DS Minerva
RD 25 abr 2026