First g(2+) measurement on neutron-rich 72Zn, and the high-velocity transient field technique for radioactive heavy-ion beams
- Fiori, E.
- Georgiev, G.
- Stuchbery, A.E.
- Jungclaus, A.
- Balabanski, D.L.
- Blazhev, A.
- Cabaret, S.
- Clément, E.
- Danchev, M.
- Daugas, J.M.
- Grévy, S.
- Hass, M.
- Kumar, V.
- Leske, J.
- Lozeva, Radomira
- Lukyanov, S.
- Mertzimekis, T.J.
- Modamio, V.
- Mouginot, B.
- Nowacki, F.
- E. Penionzhkevich, Yu.
- Perrot, L.
- Pietralla, N.
- Sieja, K.
- Speidel, K.-H.
- Stefan, I.
- Stodel, C.
- Thomas, J.C.
- Walker, J.
- Zell, K.O.
DOIAbstract
Expérience GANIL/EXOGAMThe high-velocity transient-field (HVTF) technique was used to measure the g factor of the 2+ state of 72Zn produced as a radioactive beam. The transient-field strength was probed at high velocity in ferromagnetic iron and gadolinium hosts using 76Ge beams. The potential of the HVTF method is demonstrated and the difficulties that need to be overcome for a reliable use of the TF technique with high-Z, high-velocity radioactive beams are revealed. The polarization of K-shell vacancies at high velocity, which shows more than an order of magnitude difference betweenZ = 20 andZ = 30 is discussed. The g-factor measurement hints at the theoretically predicted transition in the structure of the Zn isotopes near N = 40
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