Lagrangian-based model of the $e^+e^- \to V \bar V$ process applied to the $e^+e^- \to D^{\ast+} D^{\ast-}$ data

Peter Lichard

Lagrangian-based model of the $e^+e^- \to V \bar V$ process applied to the $e^+e^- \to D^{\ast+} D^{\ast-}$ data

High Energy Physics - Phenomenology 2026-07-05 v1 High Energy Physics - Experiment

Authors: Peter Lichard

Abstract

Using the quantum field theory, we derive a Breit-Wigner-type formula for the $e^+ e^-$ annihilation into a vector meson and its antiparticle, and relate the formula parameters to observable quantities. The formula's soundness is checked by fitting the $e^+ e^- \to D^{\ast+}D^{\ast-}$ data published by the BESIII Collaboration in 2022.

Keywords

e+e- annihilation vector meson pair production Breit-Wigner formula quantum field theory BESIII D* mesons

Cite

@article{arxiv.2607.04210,
  title  = {Lagrangian-based model of the $e^+e^- \to V \bar V$ process applied to the $e^+e^- \to D^{\ast+} D^{\ast-}$ data},
  author = {Peter Lichard},
  journal= {arXiv preprint arXiv:2607.04210},
  year   = {2026}
}

Comments

4 pages, 3 figures