Observation of Isomeric Decays in the R-Process Waiting-Point Nucleus Cd-130(82)

Jungclaus, A, Caceres, L, Gorska, M, Pfutzner, M, Pietri, S, Werner-Malento, E, Grawe, H, Langanke, K, Martinez-Pinedo, G, Nowacki, F et al, Poves, A, Cuenca-Garcia, J J, Rudolph, D, Podolyak, Z, Regan, P H, Detistov, P, Lalkovski, S, Modamio, V, Walker, J, Bednarczyk, P, Doornenbal, P, Geissel, H, Gerl, J, Grebosz, J, Kojouharov, I, Kurz, N, Prokopowicz, W, Schaffner, H, Wollersheim, H J, Andgren, K, Benlliure, J, Benzoni, G, Bruce, A M, Casarejos, E, Cederwall, B, Crespi, F C, Hadinia, B, Hellstrom, M, Hoischen, R, Ilie, G, Jolie, J, Khaplanov, A, Kmiecik, M, Kumar, R, Maj, A, Mandal, S, Montes, F, Myalski, S, Simpson, G S, Steer, S J, Tashenov, S and Wieland, O (2007) Observation of Isomeric Decays in the R-Process Waiting-Point Nucleus Cd-130(82) Physical Review Letters, 99 (13).

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Abstract

The gamma decay of excited states in the waiting-point nucleus Cd-130(82) has been observed for the first time. An 8(+) two-quasiparticle isomer has been populated both in the fragmentation of a Xe-136 beam as well as in projectile fission of U-238, making Cd-130 the most neutron-rich N=82 isotone for which information about excited states is available. The results, interpreted using state-of-the-art nuclear shell-model calculations, show no evidence of an N=82 shell quenching at Z=48. They allow us to follow nuclear isomerism throughout a full major neutron shell from Cd-98(50) to Cd-130(82) and reveal, in comparison with Ni-76(48) one major proton shell below, an apparently abnormal scaling of nuclear two-body interactions.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Physics
Authors :	Name Email ORCID Jungclaus, A Caceres, L Gorska, M Pfutzner, M Pietri, S Werner-Malento, E Grawe, H Langanke, K Martinez-Pinedo, G Nowacki, F Poves, A Cuenca-Garcia, J J Rudolph, D Podolyak, Z z.podolyak@surrey.ac.uk Regan, P H p.regan@surery.ac.uk Detistov, P Lalkovski, S Modamio, V Walker, J Bednarczyk, P Doornenbal, P Geissel, H Gerl, J Grebosz, J Kojouharov, I Kurz, N Prokopowicz, W Schaffner, H Wollersheim, H J Andgren, K Benlliure, J Benzoni, G Bruce, A M Casarejos, E Cederwall, B Crespi, F C Hadinia, B Hellstrom, M Hoischen, R Ilie, G Jolie, J Khaplanov, A Kmiecik, M Kumar, R Maj, A Mandal, S Montes, F Myalski, S Simpson, G S Steer, S J Tashenov, S Wieland, O
Date :	1 January 2007
Identification Number :	10.1103/PhysRevLett.99.132501
Additional Information :	Published in <i>Physical Review Letters,</i> Vol. 99, Iss. 13. Copyright 2007 American Physical Society. Click <a href=http://prl.aps.org/>here</a> to access the journal's website.
Depositing User :	Mr Adam Field
Date Deposited :	27 May 2010 14:05
Last Modified :	19 Jun 2018 06:02
URI:	http://epubs.surrey.ac.uk/id/eprint/45

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