Trigger efficiencies for single photon events

Sumitted to PubDB: 2020-07-22

Category: Conference papers and plots, Visibility: Public

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Authors
Non-Belle II authors	The Belle II collaboration
Date	2020-07-22
Belle II Number	BELLE2-NOTE-PL-2020-009
Abstract	The search for invisible decays of the dark photon A′ is enabled by dedicated single photon triggers. A radiative muon pair control sample has been used to measure the efficiency of the level 1 and high-level triggers as a function of energy. This document contains the approved plots and captions.