Levels in La140 from the beta decay of Ba140

Agarwal, Y. K. ; Baba, C. V. K. ; Bhattacherjee, S. K. (1964) Levels in La140 from the beta decay of Ba140 Nuclear Physics, 58 . pp. 641-650. ISSN 0029-5582

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002955...

Related URL: http://dx.doi.org/10.1016/0029-5582(64)90574-7


Some properties of the low-lying levels in the odd-nucleus La140 as populated by the beta decay of Ba140 have been studied by beta-gamma and gamma-gamma directional correlation experiments. The multipole orders and the E2/M1 mixing ratios of the promiment gamma-rays have thus been measured. On the basis of these measurements the following spin assignments to the La140 levels have been made: 30 keV (2-), 162 keV (2-) , 466 keV (1-) and 566 keV (1-). The 162 keV gamma ray is predominantly of E2 character with the reduced transition probability at least 90 times that of a single-particle transition.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Radioactivity Ba140 [fission Product]; Measured Eγ, Iγ βγ(θ), γγ(θ) La140 Deduced Levels; J, Π; σ(E2/M1)
ID Code:3436
Deposited On:11 Oct 2010 09:48
Last Modified:18 May 2011 08:59

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