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Discovery of highly excited long-lived isomers in neutron-rich hafnium and tantalum isotopes through direct mass measurements

A study of cooled 197Au projectile-fragmentation products has been performed with a storage ring. This has enabled metastable nuclear excitations with energies up to 3 MeV, and half-lives extending to minutes or longer, to be identified in the neutron-rich nuclides 183,184,186Hf and 186,187Ta. The r...

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Main Authors: Reed, Matthew (Author) , Cullen, I. J. (Author) , Walker, P. M. (Author) , Litvinov, Yu. A. (Author) , Blaum, K. (Author) , Bosch, F. (Author) , Brandau, C. (Author) , Carroll, J. J. (Author) , Cullen, D. M. (Author) , Deo, A. Y. (Author) , Detwiller, B. (Author) , Dimopoulou, C. (Author) , Dracoulis, G. D. (Author) , Farinon, F. (Author) , Geissel, H. (Author) , Haettner, E. (Author) , Heil, M. (Author) , Kempley, R. S. (Author) , Knöbel, R. (Author) , Kozhuharov, C. (Author) , Kurcewicz, J. (Author) , Kuzminchuk, N. (Author) , Litvinov, S. (Author) , Liu, Z. (Author) , Mao, R. (Author) , Nociforo, C. (Author) , Nolden, F. (Author) , Plass, W. R. (Author) , Prochazka, A. (Author) , Scheidenberger, C. (Author) , Steck, M. (Author) , Stöhlker, Thomas (Author) , Sun, B. (Author) , Swan, T. P. D. (Author) , Trees, G. (Author) , Weick, H. (Author) , Winckler, N. (Author) , Winkler, M. (Author) , Woods, P. J. (Author) , Yamaguchi, T. (Author)
Format: Article (Journal)
Language:English
Published: 18 October 2010
In: Physical review letters
Year: 2010, Volume: 105, Issue: 17, Pages: 1-5
ISSN:1079-7114
DOI:10.1103/PhysRevLett.105.172501
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.105.172501
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.105.172501
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Author Notes:M.W. Reed, I.J. Cullen, P.M. Walker, Yu. A. Litvinov, K. Blaum, F. Bosch, C. Brandau, J.J. Carroll, D.M. Cullen, A.Y. Deo, B. Detwiller, C. Dimopoulou, G.D. Dracoulis, F. Farinon, H. Geissel, E. Haettner, M. Heil, R.S. Kempley, R. Knöbel, C. Kozhuharov, J. Kurcewicz, N. Kuzminchuk, S. Litvinov, Z. Liu, R. Mao, C. Nociforo, F. Nolden, W.R. Plass, A. Prochazka, C. Scheidenberger, M. Steck, Th. Stöhlker, B. Sun, T.P.D. Swan, G. Trees, H. Weick, N. Winckler, M. Winkler, P.J. Woods, and T. Yamaguchi
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Summary:A study of cooled 197Au projectile-fragmentation products has been performed with a storage ring. This has enabled metastable nuclear excitations with energies up to 3 MeV, and half-lives extending to minutes or longer, to be identified in the neutron-rich nuclides 183,184,186Hf and 186,187Ta. The results support the prediction of a strongly favored isomer region near neutron number 116.
Item Description:Gesehen am 11.05.2023
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.105.172501

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