Abstract

The Belle II experiment at the SuperKEKB energy-asymmetric e+e collider has completed a series of substantial upgrades and started collecting data in 2019. The experiment is expected to accumulate a data set of 50 ab−1 to explore new physics beyond the Standard Model at the intensity frontier. The pixel detector (PXD) of Belle II plays a key role in vertex determination. It has been developed using the DEpleted P-channel Field Effect Transistor (DEPFET) technology, which combines low power consumption in the active pixel area and low intrinsic noise with a very small material budget. In this paper, commissioning and performance of the PXD measured with first collision data are presented.

Original languageEnglish
Article number164875
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume987
DOIs
StatePublished - 21 Jan 2021
Externally publishedYes

Keywords

  • Belle II
  • DEPFET
  • Pixel detector

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