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TY - CONF
AU - Ohmi, K.
AU - Kuroo, N.
AU - Oide, K.
AU - Zhou, D.
AU - Zimmermann, F.
ED - Schaa, Volker RW
ED - Arduini, Gianluigi
ED - Pranke, Juliana
ED - Seidel, Mike
ED - Lindroos, Mats
TI - Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017
C1 - Copenhagen, Denmark
T2 - International Particle Accelerator Conference
T3 - 8
LA - english
AB - Head-tail type of coherent beam-beam instability has been seen in a strong-strong beam-beam simulation for collision with a large Piwinski angle σ_{z}θ/σ_{x}>>1, where θ is a half crossing angle. Beta x* is key parameter for the instability. The instability is not serious for SuperKEKB, but can be seen in phase II commissioning stage. It has a large impact for design of FCC-ee. We introduce wake field due to the beam-beam collision. The wake field gives turn-by-turn correlation of head-tail mode. Head-tail instability caused by the wake field explains that seen in the strong-strong beam-beam simulation.
PB - JACoW
CP - Geneva, Switzerland
SP - 3738
EP - 3740
KW - wakefield
KW - electron
KW - positron
KW - simulation
KW - dipole
DA - 2017/05
PY - 2017
SN - 978-3-95450-182-3
DO - 10.18429/JACoW-IPAC2017-THPAB021
UR - http://jacow.org/ipac2017/papers/thpab021.pdf
ER -