Elsevier

Physics Letters B

Volume 49, Issue 4, 29 April 1974, Pages 323-324
Physics Letters B

A singularity in E1 matrix elements at the neutron threshold: Evidence from (d, p)-(n, γ) correlations

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Abstract

There are several independent effects which tend to suppres correlations of (d, p)-(n, γ) type. When a near-perfect correlation is found, as in the case 37Cl with thermal capture, it follows that all the effects are small. This has important implications, such as showing that the dominant thermal capture process can be ‘direct’, thereby settling a long debate. Further, the data establishes the Eγ−1 singularity in E1 matrix elements for thermal capture that was derived theoretically in 1960.

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