One-loop contributions in the EFT for the ΛN→NNΛN \to NN transition

preprint2013arXivOpen access

Abstract

We consider the ΛN→NNΛN\to NN weak transition, responsible for a large fraction of the non-mesonic weak decay of hypernuclei. We follow on the previously derived effective field theory and compute the next-to-leading one-loop corrections. Explicit expressions for all diagrams are provided, which result in contributions to all relevant partial waves.

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