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TY - CONF AU - Ohmi, K. AU - El Khechen, D. AU - Hirosawa, K. AU - Koiso, H. AU - Ohnishi, Y. ED - Li, Ying-ying ED - Li, Lu ED - Schaa, Volker RW TI - Benchmarking of Simulations of Coherent Beam-beam Instability J2 - Proc. of eeFACT2018, Hong Kong, China, 24-27 September 2018 CY - Hong Kong, China T2 - ICFA ABDW on High Luminosity Circular e$^+$e$^-$ Colliders T3 - 62 LA - english AB - Coherent beam-beam nstability in head-tail mode has been predicted in collision with a large crossing angle. The instability is serious for design of future e⁺e⁻ colliders based on the large crossing angle collision. It is possible to observe the instability in SuperKEKB commissioning. Horizontal beam size blow-up of both beams has been seen depending on the tune operating point. We report the measurement results of the instability in SuperKEKB phaseII commissioning. PB - JACoW Publishing CP - Geneva, Switzerland SP - 103 EP - 105 KW - simulation KW - MMI KW - experiment KW - luminosity KW - synchrotron DA - 2019/04 PY - 2019 SN - 978-3-95450-216-5 DO - DOI: 10.18429/JACoW-eeFACT2018-TUYBA01 UR - http://jacow.org/eefact2018/papers/tuyba01.pdf ER -