Belle II Silicon Vertex Detector

TL;DR

The Belle II Silicon Vertex Detector is a sophisticated tracking system designed to precisely measure particle decay points and low-momentum particles, enhancing the experiment's ability to explore new physics with large data samples.

Contribution

This paper details the design, prototyping, and construction of the Belle II silicon vertex detector, a key component for high-precision particle tracking.

Findings

Successful development of the silicon vertex detector

Enhanced tracking accuracy for Belle II experiment

Implementation of double-sided microstrip sensors

Abstract

The Belle II experiment at the SuperKEKB collider in Japan is designed to indirectly probe new physics using approximately 50 times the data recorded by its predecessor. An accurate determination of the decay-point position of subatomic particles such as beauty and charm hadrons as well as a precise measurement of low-momentum charged particles will play a key role in this pursuit. These will be accomplished by an inner tracking device comprising two layers of pixelated silicon detector and four layers of silicon vertex detector based on double-sided microstrip sensors. We describe herein the design, prototyping and construction efforts of the Belle-II silicon vertex detector.