N=14 and 16 shell gaps in neutron-rich oxygen isotopes

Stanoiu, M.; Azaiez, F.; Dombrádi, Zs.; Sorlin, O.; Brown, A.; Belleguic, M.; Sohler, D.; Saint Laurent, M. G.; Lopez-Jimenez, M. J.; Penionzhkevich, Y. E.; Sletten, G.; Achouri, N. L.; Angélique, J. C.; Becker, F.; Borcea, C.; Bourgeois, C.; Bracco, A.; Daugas, J. M.; Dlouhý, Zdeněk; Donzaud, C.; Duprat, J.; Fülöp, Zs.; Guillemaud-Mueller, D.; Grévy, S.; Ibrahim, F.; Kerek, A.; Krasznahorkay, A.; Lewitowicz, M.; Leenhardt, S.; Lukyanov, S.; Mayet, P.; Mandal, S.; van der Marel, H.; Mittig, W.; Mrázek, Jaromír; Negoita, F.; de Oliveira Santos, F.; Podolyák, Zs.; Pouhgeon, F.; Porquet, M. G.; Roussel-Chomaz, P.; Savajols, H.; Sobolev, Y.; Stodel, C.; Timár, J.; Yamamoto, A.

Number of the records: 1

N=14 and 16 shell gaps in neutron-rich oxygen isotopes

1.

SYSNO ASEP	0101836
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	N=14 and 16 shell gaps in neutron-rich oxygen isotopes
Title	Mezery ve slupkách N=14 a 16 v neutronobohatých izotopech kyslíku
Author(s)	Stanoiu, M. (FR) Azaiez, F. (FR) Dombrádi, Zs. (HU) Sorlin, O. (FR) Brown, A. (US) Belleguic, M. (FR) Sohler, D. (HU) Saint Laurent, M. G. (FR) Lopez-Jimenez, M. J. (FR) Penionzhkevich, Y. E. (RU) Sletten, G. (DE) Achouri, N. L. (FR) Angélique, J. C. (FR) Becker, F. (FR) Borcea, C. (FR) Bourgeois, C. (FR) Bracco, A. (IT) Daugas, J. M. (FR) Dlouhý, Zdeněk (UJF-V) Donzaud, C. (FR) Duprat, J. (FR) Fülöp, Zs. (HU) Guillemaud-Mueller, D. (FR) Grévy, S. (FR) Ibrahim, F. (FR) Kerek, A. (SE) Krasznahorkay, A. (HU) Lewitowicz, M. (FR) Leenhardt, S. (FR) Lukyanov, S. (RU) Mayet, P. (DE) Mandal, S. (IN) van der Marel, H. (SE) Mittig, W. (FR) Mrázek, Jaromír (UJF-V)_{RID, ORCID, SAI} Negoita, F. (RO) de Oliveira Santos, F. (FR) Podolyák, Zs. (GB) Pouhgeon, F. (FR) Porquet, M. G. (FR) Roussel-Chomaz, P. (FR) Savajols, H. (FR) Sobolev, Y. (RU) Stodel, C. (FR) Timár, J. (HU) Yamamoto, A. (GB)
Source Title	Physical Review C - ISSN 0556-2813 -, č. 69 (2004), 034312
Number of pages	1 s.
Language	eng - English
Country	US - United States
Keywords	shell gaps ; neutron-rich nuclei ; oxygen isotopes
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
R&D Projects	IAA1048102 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z1048901 - UJF-V
Annotation	In-beam gamma-ray spectroscopy using fragmentation reactions of both stable and radioactive beams has been performed in order to study the structure of excited states in neutron-rich oxygen isotopes with masses ranging from A=20 to 24. For the produced fragments, gamma-ray energies, intensities, an gamma-gamma coincidences have been measured. Based on this information new level schemes are proposed for (21,22)O up to the neutron separation energy. The nonobservation of any gamma-decay branch from (23)O and (24)O suggests that their excited states lie above the neutron decay thresholds. From this, as vell as from the level schemes proposed for (21)O and (22)O, the size of the N=14 and 16 shell gaps in oxygen isotopes is discussed in the light of shell-model calculations.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2005

Number of the records: 1