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Journal Articles Journal of Spectral Theory Year : 2019

## Local decay for weak interactions with massless particles

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Jean-Marie Barbaroux
Jérémy Faupin
• Function : Author

#### Abstract

We consider a mathematical model for the weak decay of the intermediate boson $Z^0$ into neutrinos and antineutrinos. We prove that the total Hamiltonian has a unique ground state in Fock space and we establish a limiting absorption principle, local decay and a property of relaxation to the ground state for initial states and observables suitably localized in energy and position. Our proofs rest, in particular, on Mourre's theory and a low-energy decomposition.

### Dates and versions

hal-01465309 , version 1 (29-04-2018)

### Identifiers

• HAL Id : hal-01465309 , version 1
• ARXIV :
• DOI :

### Cite

Jean-Marie Barbaroux, Jérémy Faupin, Jean-Claude Guillot. Local decay for weak interactions with massless particles. Journal of Spectral Theory, 2019, 9 (2), pp.453-512. ⟨10.4171/JST/253⟩. ⟨hal-01465309⟩

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