JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Natochii, A. ED - Biagini, Maria Enrica ED - Chrin, Jan ED - Giabbai, Manuela ED - Iungo, Massimiliano ED - Schaa, Volker R.W. TI - Beam-Induced Background Simulation and Measurements in Belle II at SuperKEKB J2 - Proc. of eeFACT2022, Frascati, Italy, 12-16 September 2022 CY - Frascati, Italy T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders T3 - 65 LA - english AB - Seeking New Physics beyond the Standard Model, the Belle~II experiment at the SuperKEKB electron-positron collider has already reached a peak luminosity of about 4.7·10³⁴ cm⁻².s⁻¹. Its unprecedented target luminosity of 6.3·10³⁵ cm⁻².s⁻¹ requires stable machine operation and proper control of beam-induced backgrounds for safe detector operation at high beam currents. The leading background components originating from stored and colliding beams can now be predicted with reasonable accuracy. Dedicated simulations based on the particle tracking software Strategic Accelerator Design (SAD) and Geant4 are used to predict beam-induced backgrounds. These simulations are important for studying realistic collimation scenarios, estimating associated background levels at future machine optics, and making informed choices between possible machine and detector protection upgrades. This paper reports on the Belle~II beam-induced background status in 2021–2022. It overviews background simulation and measurement methodology, and discusses the expected background evolution and mitigation strategies at higher luminosity. PB - JACoW Publishing CP - Geneva, Switzerland SP - 71 EP - 76 KW - background KW - detector KW - luminosity KW - injection KW - simulation DA - 2022/02 PY - 2022 SN - 2673-7027 SN - 978-3-95450-236-3 DO - doi:10.18429/JACoW-eeFACT2022-TUZAT0103 UR - https://jacow.org/eefact2022/papers/tuzat0103.pdf ER -