Lepton flavor violation via four-Fermi contact interactions at the International Linear Collider

Gi-Chol Cho; Yuka Fukuda; Takanori Kono

Lepton flavor violation via four-Fermi contact interactions at the International Linear Collider

High Energy Physics - Phenomenology 2018-12-27 v2

Authors: Gi-Chol Cho , Yuka Fukuda , Takanori Kono

Abstract

Lepton flavor violating (LFV) process $e^+ e^- \to e^+ \tau^-$ induced by the four-Fermi contact interactions at the International Linear Collider (ILC) is studied. Taking account of the event selection conditions, it is shown that the ILC is sensitive to smaller LFV couplings as compared to the measurement of $\tau\to 3e$ process at the B-factory experiment. The upper bounds on some of the LFV couplings are improved by several factors using polarized $e^-/e^+$ beams at $\sqrt{s}=250~\mathrm{GeV}$ and by an order of magnitude at $\sqrt{s}=1~\mathrm{TeV}$ .

Keywords

lepton flavor violation four-Fermi contact interactions International Linear Collider e+ e- to e+ tau- polarized beams LFV couplings

Cite

@article{arxiv.1803.10475,
  title  = {Lepton flavor violation via four-Fermi contact interactions at the International Linear Collider},
  author = {Gi-Chol Cho and Yuka Fukuda and Takanori Kono},
  journal= {arXiv preprint arXiv:1803.10475},
  year   = {2018}
}

Comments

14 pages, 6 figures. Version to appear in Phys.Lett.B

Lepton flavor violation via four-Fermi contact interactions at the International Linear Collider

Abstract

Keywords

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