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K-selection in the decay of the (ν 5 2 [532] ⊗ 3 2 [411])4- isomeric state in 102Zr

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 and Wieland, O (2017) K-selection in the decay of the (ν 5 2 [532] ⊗ 3 2 [411])4- isomeric state in 102Zr Physical Review C.

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Abstract

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.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Browne, FUNSPECIFIEDUNSPECIFIED
Bruce, AMUNSPECIFIEDUNSPECIFIED
Sumikama, TUNSPECIFIEDUNSPECIFIED
Nishizuka, IUNSPECIFIEDUNSPECIFIED
Nishimura, SUNSPECIFIEDUNSPECIFIED
Doornenbal, PUNSPECIFIEDUNSPECIFIED
Lorusso, GUNSPECIFIEDUNSPECIFIED
Soderstrom, P-AUNSPECIFIEDUNSPECIFIED
Watanabe, HUNSPECIFIEDUNSPECIFIED
Daido, RUNSPECIFIEDUNSPECIFIED
Patel, ZUNSPECIFIEDUNSPECIFIED
Rice, SUNSPECIFIEDUNSPECIFIED
Sinclair, LUNSPECIFIEDUNSPECIFIED
Wu, JUNSPECIFIEDUNSPECIFIED
Xu, ZYUNSPECIFIEDUNSPECIFIED
Yagi, AUNSPECIFIEDUNSPECIFIED
Baba, HUNSPECIFIEDUNSPECIFIED
Chiga, NUNSPECIFIEDUNSPECIFIED
Carroll, RUNSPECIFIEDUNSPECIFIED
Didierjean, FUNSPECIFIEDUNSPECIFIED
Fang, YUNSPECIFIEDUNSPECIFIED
Fukuda, NUNSPECIFIEDUNSPECIFIED
Gey, GUNSPECIFIEDUNSPECIFIED
Ideguchi, EUNSPECIFIEDUNSPECIFIED
Inabe, NUNSPECIFIEDUNSPECIFIED
Isobe, TUNSPECIFIEDUNSPECIFIED
Kameda, DUNSPECIFIEDUNSPECIFIED
Kojouharov, IUNSPECIFIEDUNSPECIFIED
Kurz, NUNSPECIFIEDUNSPECIFIED
Kubo, TUNSPECIFIEDUNSPECIFIED
Lalkovski, SUNSPECIFIEDUNSPECIFIED
Li, ZUNSPECIFIEDUNSPECIFIED
Lozeva, RUNSPECIFIEDUNSPECIFIED
Nishibata, NUNSPECIFIEDUNSPECIFIED
Odahara, AUNSPECIFIEDUNSPECIFIED
Podolyak, ZsoltZ.Podolyak@surrey.ac.ukUNSPECIFIED
Regan, PatrickP.Regan@surrey.ac.ukUNSPECIFIED
Roberts, OJUNSPECIFIEDUNSPECIFIED
Sakurai, HUNSPECIFIEDUNSPECIFIED
Schaffner, HUNSPECIFIEDUNSPECIFIED
Simpson, GSUNSPECIFIEDUNSPECIFIED
Suzuki, HUNSPECIFIEDUNSPECIFIED
Takeda, HUNSPECIFIEDUNSPECIFIED
Tanaka, MUNSPECIFIEDUNSPECIFIED
Taprogge, JUNSPECIFIEDUNSPECIFIED
Werner, VUNSPECIFIEDUNSPECIFIED
Wieland, OUNSPECIFIEDUNSPECIFIED
Date : 3 November 2017
Copyright Disclaimer : Copyright 2017 American Physical Society
Depositing User : Melanie Hughes
Date Deposited : 03 Aug 2017 13:31
Last Modified : 03 Aug 2017 13:31
URI: http://epubs.surrey.ac.uk/id/eprint/841838

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