The simulation library of the Belle II software system

Track finding at Belle II

Computer physics communications 259, 107610 (2021). doi:10.1016/j.cpc.2020.107610

Operational Experience and Performance of the Belle II Pixel Detector

Proceedings of the 29th International Workshop on Vertex Detectors (VERTEX2020), Tsukuba, Japan (Online); Journal of the Physical Society of Japan 34, 010002 (2021). doi:10.7566/JPSCP.34.010002

The Belle II vertex detector integration

Belle II DEPFET, PXD, and SVD Collaborations: et al.

DEPFET pixel detector in the Belle II experiment

Belle II DEPFET and PXD Collaboration: et al.

Belle II pixel detector: Performance of final DEPFET modules

Belle-II DEPFET and PXD Collaboration: et al.

The track finding algorithm of the Belle II vertex detectors

The Belle II experiment is a high energy multi purpose particle detector operated at the asymmetric e + e − - collider SuperKEKB in Tsukuba (Japan). In this work we describe the algorithm performing the pattern recognition for inner tracking detector which consists of two layers of pixel detectors and four layers of double sided silicon strip detectors arranged around the interaction region. The track finding algorithm will be used both during the High Level Trigger on-line track reconstruction and during the off-line full reconstruction. It must provide good efficiency down to momenta as low as 50 MeV/c where material effects are sizeable even in an extremely thin detector as the VXD. In a…

Alignment for the first precision measurements at Belle II

On March 25th 2019, the Belle II detector recorded the first collisions delivered by the SuperKEKB accelerator. This marked the beginning of the physics run with vertex detector. The vertex detector was aligned initially with cosmic ray tracks without magnetic field simultaneously with the drift chamber. The alignment method is based on Millepede II and the General Broken Lines track model and includes also the muon system or primary vertex position alignment. To control weak modes, we employ sensitive validation tools and various track samples can be used as alignment input, from straight cosmic tracks to mass-constrained decays. With increasing luminosity and experience, the alignment is …

Commissioning and performance of the Belle II pixel detector

Belle-II DEPFET and PXD Collaboration: et al.