{
  "id": "2204.02318",
  "version": "v1",
  "published": "2022-04-05T16:19:39.000Z",
  "updated": "2022-04-05T16:19:39.000Z",
  "title": "ee$\\in$MC: Simulation of $\\bf e^{+}e^{-} \\to μ^{+} μ^{-} (γ) $ and $\\bf e^{+}e^{-} \\to τ^{+}τ^{-} (γ) $ Events",
  "authors": [
    "Ian M. Nugent"
  ],
  "comment": "35 pages, 15 Figures, 7 Tables. Submitted to Physics Letter B 2021-05-02, Nuclear Physics B 2021-10-28",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We present a new Monte-Carlo generator, {\\tt ee$\\in$MC}, for the simulation of $e^{+}e^{-} \\to \\mu^{+} \\mu^{-} (\\gamma) $, $e^{+}e^{-} \\to \\tau^{+}\\tau^{-} (\\gamma) $ and $\\tau$ lepton decays which is suitable for $e^{+}e^{-}$ colliders from threshold up to energy of $\\sim 10.58GeV$. The $e^{+}e^{-} \\to \\mu^{+} \\mu^{-}(\\gamma) $, $e^{+}e^{-} \\to \\tau^{+}\\tau^{-}(\\gamma)$ interactions are computed up to the exact LO matrix element where the running of $\\alpha_{QED}$ includes both the LO leptonic and hadronic vacuum polarization. Infra-red divergences are investigated within the Yennie-Frautschi-Suura Exponentiation formalism, where several well-known approximations and a formulation based on the exact LO contribution to the soft and virtual photons are applied. The simulation of the $\\tau$ lepton consists of the leptonic decay modes at Born level and theoretical models based on Flux-Tube Breaking Models and Chiral Resonance Lagrangian Models as well as experimental models for the majority of semi-leptonic decay modes. This includes hadronic models for investigating the origin of low mass scalar sector recently observed in decays of the $\\tau$ lepton and their association with the origin of the constituent-quark mass through Chiral-symmetry Breaking.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-04-05T16:19:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "simulation",
      "low mass scalar sector",
      "exact lo matrix element",
      "chiral resonance lagrangian models",
      "semi-leptonic decay modes"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 35,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}