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Isomer Spectroscopy of Neutron-rich 165,167Tb

Gurgi, Laila, Regan, Patrick, Söderström, P-A, Watanabe, H, Walker, Philip, Podolyak, Zsolt, Nishimura, S, Berry, Thomas, Doornenbal, P, Lorusso, G , Isobe, T, Baba, H, Xu, ZY, Sakurai, H, Sumikama, T, Catford, Wilton, Bruce, AM, Browne, F, Lane, GJ, Kondev, FG, Odahara, A, Wu, J, Liu, HL, Xu, FR, Korkulu, Z, Lee, P, Liu, JJ, Phong, VH, Yagi, A, Zhang, GX, Alharbi, T, Carroll, RJ, Chae, KY, Dombradi, Z, Estrade, A, Fukuda, N, Griffin, C, Ideguchi, E, Inabe, N, Kanaoka, H, Kojouharov, I, Kubo, T, Kubono, S, Kurz, N, Kuti, I, Lalkovski, S, Lee, EJ, Lee, CS, Lotay, Gavin, Moon, CB, Nishizuka, I, Nita, CR, Patel, Z, Roberts, OJ, Schaffner, H, Shand, Callum, Suzuki, H, Takeda, H, Terashima, S, Vajta, Z, Kanaya, S and Valiente-Dobón, J-J (2017) Isomer Spectroscopy of Neutron-rich 165,167Tb In: Conference on Nuclear Physics “Extremes of the Nuclear Landscape”, 2016-08-28 - 2015-09-04, Zakopane, Poland.

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We present information on the excited states in the prolate-deformed, neutron-rich nuclei 165;167Tb100;102. The nuclei of interest were synthesised following in-flight fission of a 345 MeV per nucleon 238U primary beam on a 2 mm 9Be target at the Radioactive Ion-Beam Factory (RIBF), RIKEN, Japan. The exotic nuclei were separated and identified event-by-event using the BigRIPS separator, with discrete energy gamma-ray decays from isomeric states with half-lives in the s regime measured using the EURICA gamma-ray spectrometer. Metastable-state decays are identified in 165Tb and 167Tb and interpreted as arising from hindered E1 decay from the 7 2 [523] single quasi-proton Nilsson configuration to rotational states built on the 3 2 [411] single quasi-proton ground state. These data correspond to the first spectroscopic information in the heaviest, odd-A terbium isotopes reported to date and provide information on proton Nilsson configurations which reside close to the Fermi surface as the 170Dy doubly-midshell nucleus is approached.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Söderström, P-A
Watanabe, H
Nishimura, S
Doornenbal, P
Lorusso, G
Isobe, T
Baba, H
Xu, ZY
Sakurai, H
Sumikama, T
Bruce, AM
Browne, F
Lane, GJ
Kondev, FG
Odahara, A
Wu, J
Liu, HL
Xu, FR
Korkulu, Z
Lee, P
Liu, JJ
Phong, VH
Yagi, A
Zhang, GX
Alharbi, T
Carroll, RJ
Chae, KY
Dombradi, Z
Estrade, A
Fukuda, N
Griffin, C
Ideguchi, E
Inabe, N
Kanaoka, H
Kojouharov, I
Kubo, T
Kubono, S
Kurz, N
Kuti, I
Lalkovski, S
Lee, EJ
Lee, CS
Moon, CB
Nishizuka, I
Nita, CR
Patel, Z
Roberts, OJ
Schaffner, H
Suzuki, H
Takeda, H
Terashima, S
Vajta, Z
Kanaya, S
Valiente-Dobón, J-J
Date : 2017
DOI : 10.5506/APhysPolB.48.601
Copyright Disclaimer : Copyright 2016 The Author(s). Published under the conditions of Creative Common License, CC-BY 4.0.
Contributors :
Jagiellonian University,
Depositing User : Symplectic Elements
Date Deposited : 26 Apr 2017 18:01
Last Modified : 16 Jan 2019 17:14

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