page_title: Belle II experiment
hierarchical_section_title: Belle II experiment
caption_attribution_description: English: Belle II detector for SuperKEKB electron-positron particle accelerator under construction at KEK (The High Energy Accelerator Research Organization) in Tsukuba, Japan. Photographed on Open House day.
context_page_description: The Belle II experiment is a particle physics experiment designed to study the properties of B mesons. Belle II is the successor to the Belle experiment, and is currently being commissioned at the SuperKEKB accelerator complex at KEK in Tsukuba, Ibaraki Prefecture, Japan. The Belle II detector was "rolled in" in April 2017. Belle II started taking data in early 2018. Over its running period, Belle II is expected to collect around 50 times more data than its predecessor due mostly to a factor 40 increase in instantaneous luminosity provided by SuperKEKB over the original KEKB accelerator.
context_section_description: The Belle II experiment is a particle physics experiment designed to study the properties of B mesons (heavy particles containing a bottom quark). Belle II is the successor to the Belle experiment, and is currently being commissioned at the SuperKEKB accelerator complex at KEK in Tsukuba, Ibaraki Prefecture, Japan. The Belle II detector was "rolled in" (moved into the collision point of SuperKEKB) in April 2017. Belle II started taking data in early 2018. Over its running period, Belle II is expected to collect around 50 times more data than its predecessor due mostly to a factor 40 increase in instantaneous luminosity provided by SuperKEKB over the original KEKB accelerator.
caption: The opened Belle II detector before installation of the inner tracking detectors.
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