On the three-particle analog of the Lellouch-Lüscher formula
Fabian Müller, Akaki Rusetsky
Abstract
A bstract 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.
Topics & Concepts
PhysicsGeneralizationAmplitudeField (mathematics)Mathematical physicsField theory (psychology)Quantum electrodynamicsTheoretical physicsQuantum field theoryVolume (thermodynamics)Quantum and Classical ElectrodynamicsQuantum Chromodynamics and Particle InteractionsAtomic and Molecular Physics