Author: Ohnishi, Y.
Paper Title Page
TUPME016 Crosstalk Between Beam-beam Interaction and Lattice Nonlinearities in the SuperKEKB 1601
 
  • D. Zhou, K. Ohmi, Y. Ohnishi, K. Oide, H. Sugimoto
    KEK, Ibaraki, Japan
 
  Momentum-dependent lattice nonlinearities have been proven to be important for the luminosity performance in the KEKB B-factory. As an upgrade of KEKB, the SuperKEKB adopts nano-beam scheme, in which the colliding beams are squeezed to extremely small sizes at the interaction point. Consequently, the lattice nonlinearities in SuperKEKB become more stronger than in KEKB. Using two codes, SAD and BBWS, we did various simulations to study the crosstalk between beam-beam interaction and lattice nonlinearities. It is found that lattice nonlinearities can cause remarkable luminosity loss in the SuperKEKB.