Reinvestigation of Collective Bands in <SUP>107</SUP>Tc

doi:10.1088/0256-307X/26/9/092502

Chin. Phys. Lett.

2009, Vol. 26

Issue (9): 092502 DOI: 10.1088/0256-307X/26/9/092502

NUCLEAR PHYSICS

Reinvestigation of Collective Bands in ¹⁰⁷Tc

GU Long¹, ZHU Sheng-Jiang¹, J. H. Hamilton², A. V. Ramayya², J. K. Hwang², S. H. Liu², WANG Jian-Guo¹, Y. X. Luo^2,3, J. O. Rasmussen³, I. Y. Lee³, DING
Huai-Bo¹, K. Li², XU Qiang¹, YANG Yun-Yi¹

¹Department of Physics, Tsinghua University, Beijing 100084²Department of Physics, Vanderbilt University, Nashville, Tennessee 37235, USA³Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

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GU Long, ZHU Sheng-Jiang, J. H. Hamilton et al 2009 Chin. Phys. Lett. 26 092502

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Abstract The high spin states of a neutron-rich ¹⁰⁷Tc nucleus are reinvestigated by observing prompt γ-rays from the spontaneous fission of ²⁵²Cf. The previous level scheme is updated. A collective band based on the π5/2^-[303] orbital is confirmed and extended. Inconsistencies in the configuration assignments for a type of positive parity bands of odd-A ^105,107,109Tc in the previous reports are clarified according to the g factor calculations. A new band based on the 1499.5keV level in ¹⁰⁷Tc is proposed as a two-phonon γ-vibrational band.

Keywords: 25.85.Ca 21.10.Re 23.20.Lv

Received: 19 May 2009 Published: 28 August 2009

PACS:	25.85.Ca	(Spontaneous fission)
	21.10.Re	(Collective levels)
	23.20.Lv	(γ-transitions and level energies)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/26/9/092502 OR https://cpl.iphy.ac.cn/Y2009/V26/I9/092502

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	GU Long
	ZHU Sheng-Jiang
	J. H. Hamilton
	A. V. Ramayya
	J. K. Hwang
	S. H. Liu
	WANG Jian-Guo
	Y. X. Luo
	J. O. Rasmussen
	I. Y. Lee
	DINGHuai-Bo
	K. Li
	XU Qiang
	YANG Yun-Yi

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