| Autor: |
Browne, F, Bruce, AM, Sumikama, T, Nishizuka, I, Nishimura, S, Doornenbal, P, Lorusso, G, Soderstrom, P-A, Watanabe, H, Daido, R, Patel, Z, Rice, S, Sinclair, L, Wu, J, Xu, ZY, Yagi, A, Baba, H, Chiga, N, Carroll, R, Didierjean, F, Fang, Y, Fukuda, N, Gey, G, Ideguchi, E, Inabe, N, Isobe, T, Kameda, D, Kojouharov, I, Kurz, N, Kubo, T, Lalkovski, S, Li, Z, Lozeva, R, Nishibata, N, Odahara, A, Podolyak, Zsolt, Regan, Patrick, Roberts, OJ, Sakurai, H, Schaffner, H, Simpson, GS, Suzuki, H, Takeda, H, Tanaka, M, Taprogge, J, Werner, V, Wieland, O |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Popis: |
The (ν 5 2 [532] ⊗ 3 2 [411]) 4− state in 102Zr, populated in the β-decay of 102Y, has been measured to be isomeric with a mean lifetime of 9.5(7) ns. It decays via four transitions, two of which are ∆K = 2 (to the 3+ and 4+ members of the 2+ γ band) and one is ∆K = 4 (to the 4+ member of the ground state 0+ band). The fourth (low-energy) transition is inferred to decay to an as-yet unassigned state. Hindrances of 106 were derived for the ∆K = 2 transitions compared to Weisskopf estimates and the ∆K = 4 transition hindered by a factor of 109 . These values are consistent with the decay pattern of the analogous isomeric state in the neighbouring N = 62 nucleus 100Sr and with the broader systematics of such transitions. A comparison of the hindrances for the ∆K = 4 transitions suggests that 102Zr is hardened against the γ degree of freedom compared to 100Sr. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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