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@InProceedings{nakamura:napac2019-moyba2,
author = {S. Nakamura},
title = {{Commissioning of the Phase 2 and Phase 3 SuperKEKB / B-Factory}},
booktitle = {Proc. NAPAC'19},
pages = {14--17},
paper = {MOYBA2},
language = {english},
keywords = {detector, MMI, luminosity, optics, injection},
venue = {Lansing, MI, USA},
series = {North American Particle Accelerator Conference},
number = {4},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2019},
issn = {2673-7000},
isbn = {978-3-95450-223-3},
doi = {10.18429/JACoW-NAPAC2019-MOYBA2},
url = {http://jacow.org/napac2019/papers/moyba2.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-MOYBA2},
abstract = {The next generation of B-Factory, the SuperKEKB electron-positron collider at KEK (Japan) has started after two years shutdown from the Phase 1 commissioning in 2016. The first phase for the vacuum scrubbing in 2016 and the second phase focused on the verification of the novel "nano-beam" collision scheme were successfully completed in 2018. The modifications between Phase 1 and Phase 2 follows Phase 3 are installations of the final focus system and the Belle II detector. In order to accomplish the higher luminosity more than the predecessor KEKB , the nano-beam scheme is studied with higher bunch currents to reduce the beam-beam blowup which degrade the luminosity. The new collision scheme is reviewed and the luminosity performance and overall status in the Phase 2 and Phase 3 commissioning are presented.},
}