Elsevier

Nuclear Physics A

Volume 236, Issue 1, 23 December 1974, Pages 198-224
Nuclear Physics A

A study of the distribution of partial radiative widths and amplitudes for 149Sm(n, γ) 150Sm

https://doi.org/10.1016/0375-9474(74)90228-0Get rights and content

Abstract

A new approach to the study of width distributions is developed. The approach makes use of level-level interference effects in (n,γ) reactions to produce a set of radiative width amplitudes. This set is compared to the width distribution and to the hypothesis of Porter and Thomas for the case of 149Sm(n, γ)150Sm. Both width and amplitude distributions show small but significant deviations from the hypothesis for transitions to low-lying 3+ and 4+ states in 150Sm. No significant width correlations are observed, nor is there apparent any violation of the assumption of random phases for the amplitudes.

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    Work supported by the US Atomic Energy Commission.

    ††

    Joint Institute for Nuclear Research, Head Post Office, P.O. Box 79 Moscow, USSR.

    †††

    Permanent address: National Bureau of Standards, washington, DC 20234, USA.

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