English

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.

Keywords

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

R2 v1 2026-06-21T19:32:32.670Z