Joint annual meeting of Swiss and Austrian Physical Societies 2017

【381】 High purity 100 GeV electron identification with synchrotron radiation

25 Aug 2017, 11:15

15m

Talk Nuclear, Particle- and Astrophysics (TASK - FAKT) Nuclear, Particle-and Astrophysics (TASK-FAKT)

Speaker

Emilio Depero (Eidgenössische Technische Hochschule Zürich)

Description

The NA64 experiment is a new experiment searching for invisible decays of dark photons using the electron beam of the CERN SPS dumped in an active target.To obtain the aimed sensitivity of NA64 to a single A'-decay for >${10}^{10}$ eots, one of the key elements that is the use of an incoming electrons tagging with efficiency better than 95% and suppression of hadrons contamination in the e${}^{-}$ beam down to the level < ${10}^{-5}$.The results obtained with a prototype version of the e${}^{-}$ tagging system based on the detection of synchrotron radiation by BGO detector are presented.

Presentation materials

Synchrotron_rejection_NA64.pdf