Speakers
Description
The SuperFGD (Super Fine-Grained Detector) is a part of ND280 near
detector complex for T2K and Hyper-Kamiokande experiments. The
SuperFGD is a fully active and highly granular scintillator neutrino
detector. It consists of ∼2 million scintillation cubes, which allow
reconstruction of particles going in all directions. A good
understanding of SuperFGD response is crucial for detailed Monte-Carlo
simulations and further physics studies. This poster covers selection
of atmospheric muons stopped inside the sensitive volume of the
detector including their decays. Muons were selected by applying
geometrical constraints and searching for subsequent electron or
positron. The reconstructed spectrum of the Michel e-/e+ is useful for
energy scale determination. Bragg’s curve built using muon energy
release along its track is sensitive not only to energy scale but also
to the nonlinear effects: Birks coefficient and Cherenkov radiation
intensity. Reconstruction of Compton electrons following positron
annihilation allows to evaluate an effective low energy threshold.
