A study of intruder negative-parity states of neutron-rich 33Si

Autor: Wang, Z.M., Chapman, R., Liang, X., Haas, F., Bouhelal, M., Azaiez, F., Beghini, S., Behera, B.R., Burns, M., Caurier, E., Corradi, Lorenzo, Curien, D., Deacon, A.N., Dombradi, Z.S., Farnea, E., Gadea, A., Hodsdon, A., Ibrahim, F., Jungclaus, A., Keyes, K., Kumar, V., Latina, A., Marginean, N., Montagnoli, G., Napoli, D.R., Nowacki, F., Ollier, J., O’Donnell, D., Papenberg, A., Pollarolo, G., Salsac, M.-D., Scarlassara, F., Smith, J.F., Spohr, K.M., Stanoiu, M., Stefanini, A.M., Szilner, Suzana, Trotta, Monica, Verney, D.
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Popis: Yrast states in the neutron-rich 33Si nucleus have been studied using binary grazing reactions produced by the interaction of a 215 MeV beam of 36S ions with a thin 208Pb target. An experimental setup which combines the large acceptance magnetic spectrometer, PRISMA, and the high efficiency gamma-ray detection array, CLARA, was used in the experiment. Four new gamma-ray photopeaks at energies of 971, 1724, 1772, and 2655 keV were observed and assigned to the 33Si level scheme. The experimental level scheme is compared with the results of p-sd-pf large-scale shell-model calculations using the recently developed PSDPFB effective interaction ; good agreement is obtained. The structure of the populated states of 33Si is discussed within the context of an odd-neutron coupled to states of the 32Si core.
Databáze: OpenAIRE