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TY - CONF AU - Geng, H. AU - Bai, S. AU - Chou, W. AU - Duan, Z. AU - Peng, Y.M. AU - Qin, Q. AU - Wang, D. AU - Wang, Y. AU - Xu, G. AU - Yue, Y. AU - Zhang, Y. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Lattice and its Related Beam Dynamics Issues in the CEPC Storage Ring J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - The institute of High Energy Physics has proposed an electron positron collider ring with a circumference of 50-100km to study the Higgs boson. Since the proposal was made, the lattice design for CEPC has been carried out and a preliminary conceptual design report has been written at the end of 2014. In this paper, we will describe the philosophy and results of our lattice design. The procedure of dynamic aperture optimization will be shown. A specific issue for CEPC, the pretzel orbit, which has been found distorting the linear lattice for a considerable amount, will be examined. The ways that we are trying to correct the pretzel orbit effect and the result will be shown. We will also discuss the saw tooth effect on the linear lattice and dynamic aperture of the ring. PB - JACoW CP - Geneva, Switzerland SP - 2469 EP - 2471 KW - lattice KW - quadrupole KW - electron KW - positron KW - factory DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEBB3 UR - http://jacow.org/ipac2015/papers/webb3.pdf ER -