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Structure of the N=50 As, Ge, Ga nuclei

**Autoria(s):** Sahin, E.; de Angelis, G.; Duchene, G.; Faul, T.; Gadea, A.; Lisetskiy, A. F.; Ackermann, D.; Algora, A.; Aydin, S.; Azaiez, F.; Bazzacco, D.; Benzoni, G.; Bostan, M.; Byrski, T.; Celikovic, I.; Chapman, R.; Corradi, L.; Courtin, S.; Curien, D.; Pramanik, U. Datta; Didierjean, F.; Dorvaux, O.; Erduran, M. N.; Erturk, S.; Farnea, E.; Fioretto, E.; de France, G.; Franchoo, S.; Gall, B.; Gottardo, A.; Guiot, B.; Haas, F.; Ibrahim, F.; Ince, E.; Khouaja, A.; Kusoglu, A.; La Rana, G.; Labiche, M.; Lebhertz, D.; Lenzi, S.; Leoni, S.; Lunardi, S.; Mason, P.; Mengoni, D.; Michelagnoli, C.; Modamio, V.; Montagnoli, G.; Montanari, D.; Moro, R.; Mouginot, B.; Napoli, D. R.; O'Donnell, D.; Oliveira, Jose Roberto Brandao de; Ollier, J.; Orlandi, R.; Pollarolo, G.; Recchia, F.; Robin, J.; Salsac, M. -D.; Scarlassara, F.; Singh, R. P.; Silvestri, R.; Smith, J. F.; Stefan, I.; Stefanini, A. M.; Subotic, K.; Szilner, S.; Tonev, D.; Torres, D. A.; Trotta, M.; Ujic, P.; Ur, C.; Valiente-Dobon, J. J.; Verney, D.; Yalcinkaya, M.; Wady, P. T.; Wiedemann, Kenia Teodoro; Zuber, K.
Contribuinte(s)	UNIVERSIDADE DE SÃO PAULO
Data(s)	01/11/2013 01/11/2013 02/08/2013
Resumo	The level structures of the N = 50 As-83, Ge-82, and Ga-81 isotones have been investigated by means of multi-nucleon transfer reactions. A first experiment was performed with the CLARA PRISMA setup to identify these nuclei. A second experiment was carried out with the GASP array in order to deduce the gamma-ray coincidence information. The results obtained on the high-spin states of such nuclei are used to test the stability of the N = 50 shell closure in the region of Ni-78 (Z = 28). The comparison of the experimental level schemes with the shell-model calculations yields an N = 50 energy gap value of 4.7(3) MeV at Z = 28. This value, in a good agreement with the prediction of the finite-range liquid-drop model as well as with the recent large-scale shell model calculations, does not support a weakening of the N = 50 shell gap down to Z = 28. (c) 2012 Elsevier B.V. All rights reserved. NSF [PHY0244389, PHY0555396] NSF European Commission within the Sixth Framework Programme through I3EURONS European Commission within the Sixth Framework Programme through I3-EURONS [RII3-CT-2004-506065] DGF (Germany) [DE 1516/-1] DGF (Germany)
Identificador	NUCLEAR PHYSICS A, AMSTERDAM, v. 893, n. 2, supl. 1, Part 2, pp. 1-12, 37561, 2012 0375-9474 http://www.producao.usp.br/handle/BDPI/37456 10.1016/j.nuclphysa.2012.08.007 http://dx.doi.org/10.1016/j.nuclphysa.2012.08.007
Idioma(s)	eng
Publicador	ELSEVIER SCIENCE BV AMSTERDAM
Relação	NUCLEAR PHYSICS A
Direitos	restrictedAccess Copyright ELSEVIER SCIENCE BV
Palavras-Chave	#NUCLEAR REACTIONS U-238(SE-82, GA-81), (SE-82, GE-82), (SE-82, AS-83), E=515 MEV #MEASURED E-GAMMA, I-GAMMA (THETA), GAMMA GAMMA-COIN, REACTION FRAGMENTS, (FRAGMENT)GAMMA-COIN USING PRISMA MAGNETIC SPECTROMETER, GAMMA AFTER DEEXCITATION USING GE COMPTON-SUPPRESSED DETECTORS OF CLARA ARRAY, THIN AND THICK TARGET #DEDUCED SIGMA(THETA), LEVELS, J, PI #CALCULATED LEVELS, J, PI USING SHELL MODEL #NEUTRON-RICH NUCLEI #MAGNETIC SPECTROMETER #EXOTIC NUCLEI #SHELL #STABILITY #ASTROPHYSICS #PRISMA #PHYSICS, NUCLEAR
Tipo	article original article publishedVersion

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