Feasibility study of dark-photon searches in the single photon plus missing events in e+e- collisions at Belle II.

Sumitted to PubDB: 2022-09-16

Category: Master Thesis, Visibility: Public

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Authors	Hisaki Hayashii, Ayumi Yabuuchi
Date	Jan. 1, 2020
Belle II Number	BELLE2-MTHESIS-2022-016
Abstract	We carried out the feasibility study of the dark-photon searches for events where only a single photon is detected, using signal and background Monte-Carlo simulation. The backgrounds are dominated by the radiative Bhabha and three-photon production processes. Signal sensitivities are studied by changing the requirements for the responses in the calorimeter and KL-muon detector.
Conference	Nara, japan