Spectroscopy of neutron-rich P-34,P-35,P-36,P-37,P-38 populated in binary grazing reactions

R. Chapman, A. Hodsdon, M. Bouhelal, F. Haas, X. Liang, F. Azaiez, Z. M. Wang, B. R. Behera, M. Burns, E. Caurier, L. Corradi, D. Curien, A. N. Deacon, Zs. Dombradi, E. Farnea, E. Fioretto, A. Gadea, F. Ibrahim, A. Jungclaus, K. KeyesV. Kumar, S. Lunardi, N. Marginean, G. Montagnoli, D. R. Napoli, F. Nowacki, J. Ollier, D. O'Donnell, A. Papenberg, G. Pollarolo, M. -D. Salsac, F. Scarlassara, J. F. Smith, K. M. Spohr, M. Stanoiu, A. M. Stefanini, S. Szilner, M. Trotta, D. Verney

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15 Citations (Scopus)


The neutron-rich nuclei P-34,P-35,P-36,P-37,P-38 were populated in binary grazing reactions initiated by a beam of S-36 ions at 215 MeV incident on a thin Pb-208 target. The combination of the PRISMA magnetic spectrometer and the CLARA array of escape-suppressed Ge detectors was used to detect gamma rays in coincidence with projectile-like nuclear species. Further evidence to support the observed gamma decay of excited states of the populated phosphorus isotopes is provided by gamma-gamma coincidencemeasurements based on the results of an earlier thick-target deep-inelastic experiment. Level schemes for P-34,P-35,P-36,P-37,P-38 are presented and discussed within the context of state-of-the-art shell-model calculations. In particular, new spin and parity assignments are proposed for a number of excited states of P-36. The evolution with neutron number of the energy difference of the low-lying J(pi) = 3/2(+) and 1/2(+) states in the odd-A isotopes of phosphorus, as well as the relationship to nuclear collectivity, is discussed. The evolution with neutron number of the shell-model wave functions of the first J(pi) = 1/2(,)(+) 3/2(+), and 5/2(+) states of the odd-A phosphorus isotopes and of the first J(pi) = 3(-), 4(-), and 5(-) states of the even-A isotopes is also explored.
Original languageEnglish
Article number044308
JournalPhysical Review C
Issue number4
Publication statusPublished - 9 Oct 2015


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