BELLE2-CONF-PROC-2021-008

Particle Identification in Belle II Silicon Vertex Detector

A. B. Kaliyar

16 March 2021

Abstract: We report a particle identification (PID) method developed for charged pions, kaons, and protons using specific ionization information in the silicon-strip vertex detector (SVD) of Belle II with $D^{*+}\to D^{0}[\to K^{-}\pi^{+}]\pi^{+}$ and $\Lambda\to p\pi^{-}$ decay samples. The study is based on $e^{+}e^{-}$ collision data recorded at the $\Upsilon$(4S) resonance by the Belle II detector. The introduction of additional information from the SVD is found to improve the overall PID performance in the low-momentum region.

Keyword(s): dE/dx ; silicon ; PID

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