Strong–strong beam–beam simulations with lattices of circular e+ e-colliders

Z Li, Y Zhang, K Ohmi, D Zhou, Y Wang, G Xu - Nuclear Instruments and …, 2024 - Elsevier
Strong–strong beam–beam simulations for circular colliders are very time-consuming. Thus
far, such simulations have predominantly utilized a linear transfer matrix to represent the full …

Simulations and experimental results of beam-beam effects in SuperKEKB

D Zhou, K Ohmi, Y Funakoshi, Y Ohnishi… - … Review Accelerators and …, 2023 - APS
The beam-beam interaction is one of the most critical factors determining the luminosity
performance of colliders. As a circular collider utilizing the crab-waist scheme, multiple …

Impedance modelling and collective effects in the Future Circular e+ e− Collider with 4 IPs

M Migliorati, C Antuono, E Carideo, Y Zhang… - EPJ Techniques and …, 2022 - epjti.epj.org
The FCC-ee impedance model is being constantly updated closely following the vacuum
chamber design and parameters evolution. In particular, at present, a thicker NEG coating of …

The report of machine studies related to the vertical beam size blow-up in SuperKEKB LER

S Terui, T Ishibashi, K Ohmi, Y Funakoshi… - Journal of Physics …, 2023 - iopscience.iop.org
In the low energy ring (LER) for positrons in the SuperKEKB, a vertical beam size blow-up
was observed when the bunch current was approximately 1 mA. If a beam size blow-up …

Cryogenic systems of SuperKEKB final focusing superconducting magnets

Z Zong, N Ohuchi, M Kawai, K Aoki, T Oki… - Nuclear Instruments and …, 2024 - Elsevier
SuperKEKB is an accelerator to collide electron and positron particles with a nano-beam
collision scheme and equipped with two cryostats to accommodate 55 superconducting (SC) …

[PDF][PDF] Formulae of luminosity and beam-beam tune shifts for flat-beam asymmetric colliders

D Zhou - arXiv preprint arXiv:2212.12706, 2022 - arxiv.org
arXiv:2212.12706v1 [physics.acc-ph] 24 Dec 2022 Page 1 arXiv:2212.12706v1 [physics.acc-ph]
24 Dec 2022 Formulae of luminosity and beam-beam tune shifts for flat-beam asymmetric …

Beam optics distortion caused by orbit deviation at strong sextupole magnets in SuperKEKB

H Sugimoto, Y Ohnishi, A Morita… - Journal of …, 2024 - iopscience.iop.org
The SuperKEKB is an electron-positron double-ring asymmetric-energy collider at the High
Energy Accelerator Research Organization (KEK) in Japan. It uses a novel collision method …

Incoherent horizontal emittance growth due to the interplay of beam-beam and longitudinal wakefield in crab-waist colliders

P Kicsiny, D Zhou, X Buffat, T Pieloni… - arXiv preprint arXiv …, 2025 - arxiv.org
In this paper, we investigate quadrupolar sychrobetatron resonances caused by beam-beam
collisions and their interplay with longitudinal wakefields in the context of crab-waist …

[PDF][PDF] Future projects for the next generation Tau-Charm factories in China and Russia

Q Luo - Proceedings of 65th ICFA Advanced Beam …, 2023 - accelconf.web.cern.ch
Based on the key scientific questions in the frontier of particle physics field, the current status
and future development trend globally and domestically of acceleratorbased particle physics …

Longitudinal beam dynamics and collective effects at the STCF collider rings

L Zhang, T Liu, S Li, Y Zou, Q Luo… - Modern Physics Letters A, 2024 - World Scientific
The Super Tau-Charm Facility (STCF) proposed in China is a new-generation high-
luminosity e+∕ e− collider in the low-energy region, with the beam energy of 1–3.5 GeV and …