Performance studies of the Belle II Silicon Vertex Detector with data taken at the DESY test beam in April 2016

Abstract

Belle II is a multipurpose detector currently under construction and it will be operated at the next generation B-factory SuberKEKB in Japan. The main Belle II devices, devoted to the vertex reconstruction, are the Silicon Vertex Detector (SVD) and the Pixel Detector (PXD). In April 2016 a sector of the Belle II SVD and PXD has been tested in a beam of high energetic electrons at the test beam facility at DESY Hamburg (Germany). We report here the results for the hit efficiency estimation and the measurement of the resolution for the Belle II silicon vertex detector. Hit efficiencies are measured to be on average above 99.5% and the measured resolution is within the expectations. � 2016 Sissa Medialab Srl. All rights reserved.