Intruder features in the island of inversion : The 33Mg case
Nummela, S., Nowacki, F., Baumann, P., Caurier, E., Cederkäll, J., Courtin, S., Dessagne, P., Jokinen, A., Knipper, A., Scornet, G. L., Lyapin, L. G., Miehé, C., Oinonen, M., Poirier, E., Radivojevic, Z., Ramdhane, M., Trzaska, W., Walter, G., Äystö, J., & Collaboration, I. (2001). Intruder features in the island of inversion : The 33Mg case. Physical Review C, 64(5), Article 054313. https://doi.org/10.1103/PhysRevC.64.054313
Published inPhysical Review C
© 2001 American Physical Society
The 33 Na β decay was studied online using mass separation techniques and a first description of the level structure of the neutron-rich isotope 33 Mg , with N = 21 , has been obtained. The experiment involved the measurement of β-γ, β-γ-γ, and β − n − γ coincidences as well as neutron spectra by time-of-flight technique. The first low energy level scheme for the daughter nucleus 33 Mg is given with five bound states. Spin and parity assignments are proposed according to β feedings and γ-ray multipolarities. β-strength distribution is evaluated, taking into account 1 n - and 2 n -emission channels and it is compared with the calculated GT strength distribution. In particular, the 1 p − 1 h and 2 p − 2 h excitations are shown to result in substantial contribution to the low energy configurations. Allowed β branch to the 33 Mg g.s. [ log f t = 5.27 ( 26 ) ] gives direct evidence for the inversion of ν ( f 7 / 2 ) and ν ( d 3 / 2 ) states. ...
PublisherAmerican Physical Society
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
IDS Collaboration (American Physical Society, 2017)The β− decay of 34Mg was used to study the 34Al nucleus through γ spectroscopy at the Isotope Separator OnLine facility of CERN. Previous studies identified two β-decaying states in 34Al having spin-parity assignments J ...
De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes Venhart, M.; Ali, F. A.; Ryssens, W.; Wood, J. L.; Joss, D. T.; Andreyev, A. N.; Auranen, Kalle; Bally, B.; Balogh, M.; Bender, M.; Carroll, R. J.; Easton, J. L.; Greenlees, Paul; Grahn, Tuomas; Heenen, P.-H.; Herzan, Andrej; Jakobsson, Ulrika; Julin, Rauno; Juutinen, Sakari; Klc, D.; Konki, Joonas; Lawrie, E.; Leino, Matti; Matousek, V.; McPeake, C. G.; O'Donnell, D.; Page, R. D.; Pakarinen, Janne; Partanen, Jari; Peura, Pauli; Rahkila, Panu; Ruotsalainen, Panu; Sandzelius, Mikael; Sarén, Jan; Saygi, B.; Sedlák, M.; Scholey, Catherine; Sorri, Juha; Stolze, Sanna; Thornthwaite, A.; Uusitalo, Juha; Veselsky, M. (American Physical Society, 2017)Excited states in the proton-unbound nuclide Au177 were populated in the Mo92(Sr88, p2n) reaction and identified using the Jurogam-II and GREAT spectrometers in conjunction with the RITU gas-filled separator at the University ...
IDS Collaboration (American Physical Society, 2019)The structure of 34Si was studied through γ spectroscopy separately in the β− decays of 34Mg and 34Al at the ISOLDE facility of CERN. Different configurations in 34Si were populated independently from the two recently ...
Grahn, Tuomas (University of Jyväskylä, 2006)
Population of a low-spin positive-parity band from high-spin intruder states in 177Au : the two-state mixing effect Venhart, M.; Balogh, M.; Herzáň, A.; Wood, J.L.; Ali, F.A.; Joss, D.T.; Andreyev, A.N.; Auranen, K.; Carroll, R.J.; Drummond, M.C.; Easton, J.L.; Greenlees, P.T.; Grahn, T.; Gredley, A.; Henderson, J.; Jakobsson, U.; Julin, R.; Juutinen, S.; Konki, J.; Lawrie, E.A.; Leino, M.; Matoušek, V.; McPeake, C.G.; O'Donnell, D.; Page, R.D.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Peura, P.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Saygı, B.; Sedlák, M.; Scholey, C.; Sorri, J.; Stolze, S.; Thornthwaite, A.; Urban, R.; Uusitalo, J.; Veselský, M.; Wearing, F.P. (Elsevier, 2020)The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding ...