Spin-alignment and g-factor measurement of the I(pi)=12(+) isomer in (192)Pb produced in the relativistic-energy fragmentation of a (238)U beam
- Kmiecik, M.
- Maj, A.
- Gerl, J.
- Neyens, G.
- Atanasova, L.
- L. Balabanski, D.
- Becker, F.
- Bednarczyk, P.
- Benzoni, G.
- Blasi, N.
- Bracco, A.
- Brambilla, S.
- Caceres, L.
- Camera, F.
- Ciemala, M.
- C. L. Crespi, F.
- K. Chamoli, S.
- Chmel, S.
- M. Daugas, J.
- Detistov, P.
- Doornenbal, P.
- Georgiev, G.
- Gladnishki, K.
- Gorska, M.
- Grawe, H.
- Grebosz, J.
- Hass, M.
- Hoischen, R.
- Ilie, G.
- Ionescu-Bujor, M.
- Jolie, J.
- Kojuharov, I.
- Krasznahorkay, A.
- Kulessa, R.
- Lach, M.
- Lakshmi, S.
- Leoni, S.
- Lo Bianco, G.
- Lozeva, Radomira
- H. Maier, K.
- Mallion, S.
- Mazurek, K.
- Meczynski, W.
- Million, B.
- Montanari, D.
- Myalski, S.
- Petrache, C.
- Pfutzner, M.
- Piétri, S.
- Podolyak, Z.
- Prokopowicz, W.
- Rudolph, D.
- Saito, N.
- R. Saito, T.
- Saltarelli, A.
- S. Simpson, G.
- Styczen, J.
- Vermeulen, N.
- Werner-Malento, E.
- Wieland, O.
- Wollersheim, H.
- Zieblinski, M.
DOIAbstract
The feasibility of measuring g-factors using the TDPAD method applied to high-energy, heavy fragmentation products is explored. The 2623 keV I(pi) = 12(+) isomer in (192)Pb with tau = 1.57 mu s has been produced using the fragmentation of a 1 A GeV (238)U beam. The results presented demonstrate for the first time that such heavy nuclei produced in a fragmentation reaction with a relativistic beam are sufficiently well spin-aligned. Moreover, the rather large value of the alignment, 28(10)% of the maximum possible, is preserved during the separation process allowing the determination of magnetic moments. The measured values of the lifetime, tau = 1.54(9) mu s, and the g-factor, g = -0.175(20), agree with the results of previous investigation...
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