Three-particle Lellouch-L\"uscher formalism in moving frames
High Energy Physics - Lattice
2023-02-28 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
A manifestly relativistic-invariant Lellouch-L\"uscher formalism for the three-particle decays is proposed. Similarly to ref.[1], the formalism is based on the use of the non-relativistic effective Lagrangians. Manifest Lorentz invariance is guaranteed, as in ref.[2], by choosing the quantization axis along the total four-momentum of the three-particle system. A systematic inclusion of the higher-order derivative couplings, as well as higher partial waves is addressed.
Cite
@article{arxiv.2211.10126,
title = {Three-particle Lellouch-L\"uscher formalism in moving frames},
author = {Fabian Müller and Jin-Yi Pang and Akaki Rusetsky and Jia-Jun Wu},
journal= {arXiv preprint arXiv:2211.10126},
year = {2023}
}
Comments
36 pages, 4 figures