On kinematical constraints in boson-boson systems
High Energy Physics - Phenomenology
2015-06-03 v1
Abstract
We consider the scattering of two-bosons with negative parity and spin 0 or 1. Starting from helicity partial-wave scattering amplitudes we derive transformations that eliminate all kinematical constraints. Such amplitudes are expected to satisfy partial-wave dispersion relations and therefore provide a suitable basis for data analysis and the construction of effective field theories. Our derivation relies on a decomposition of the various scattering amplitudes into suitable sets of invariant functions. A novel algebra was developed that permits the efficient computation of such functions in terms of computer algebra codes.
Cite
@article{arxiv.1111.1838,
title = {On kinematical constraints in boson-boson systems},
author = {M. F. M. Lutz and I. Vidana},
journal= {arXiv preprint arXiv:1111.1838},
year = {2015}
}
Comments
14 pages, 8 tables