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arXiv · 2012.13957

On the three-particle analog of the Lellouch-Lüscher formula

Fabian Müller·Akaki Rusetsky
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Abstract

Using non-relativistic effective field theory, we derive a three-particle analog of the Lellouch-Lüscher formula at the leading order. This formula relates the three-particle decay amplitudes in a finite volume with their infinite-volume counterparts and, hence, can be used to study the three-particle decays on the lattice. The generalization of the approach to higher orders is briefly discussed.

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Fabian Müller, Akaki Rusetsky. 2021-03-17. On the three-particle analog of the Lellouch-Lüscher formula. https://doi.org/10.1007/jhep03(2021)152

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