Thesis BELLE2-MTHESIS-2021-027

Improved measurement of CP asymmetry in function of time, of B0->pi+pi- K0S gamma decay in Belle II with a new pixelated vertex detector

Lévana GESSON ; Christian FINCK

2021
IPHC Strasbourg

Abstract: An improvement of the vertex detector of the Belle II detector is planned for 2026. This vertex detector will be totally pixelated. The objective of the latter is to have a greater safety margin with higher background noise, while maintaining (at least) the performance of the current detector. The objective of this internship was therefore to test the performance of the Belle II detector current improved, through simulation, on the decay channel B0->pi+pi- K0S gamma. In this study, we will rely on the measurement of total efficiency detection of B0, and spatial and temporal resolutions of the different particles detected. It will be a matter of comparing these values ​​with those obtained with the current geometry by Belle II.

Note: Presented on 15 06 2021
Note: MSc

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 Record created 2021-06-28, last modified 2021-06-28


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