Corpus ID: 235212204

Physics reach of a long-lived particle detector at Belle II

  title={Physics reach of a long-lived particle detector at Belle II},
  author={S. Dreyer and T. Ferber and A. Filimonova and C. Garcia-Cely and C. Hearty and S. Longo and R. Schafer and K. Schmidt-Hoberg and M. Tammaro and K. Trabelsi and S. Westhoff and J. Zupan},
We have studied three realistic benchmark geometries for a new far detector GAZELLE to search for long-lived particles at the SuperKEKB accelerator in Tsukuba, Japan. The new detector would be housed in the same building as Belle II and observe the same e+e− collisions. To assess the discovery reach of GAZELLE, we have investigated three new physics models that predict long-lived particles: heavy neutral leptons produced in tau lepton decays, axion-like particles produced in B meson decays, and… Expand


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