Assessing global crabbing scheme feasibility for Electron-Ion Collider

TL;DR

This paper evaluates the feasibility of implementing a global crabbing scheme at the Electron-Ion Collider, inspired by KEKB, using simulations to analyze its effectiveness and potential risks in restoring head-on collisions.

Contribution

It introduces a novel application of a single crab cavity with adjusted voltage for EIC, inspired by KEKB's successful scheme, and assesses its feasibility through detailed simulations.

Findings

Global crabbing scheme can restore head-on collisions at EIC

Adiabatic cavity ramping is essential to prevent luminosity loss

Potential beam dynamics risks need careful management

Abstract

The Electron-Ion Collider (EIC) plans to utilize the local crabbing crossing scheme. This paper explores the feasibility of adopting a single crab cavity with adjusted voltage, inspired by the successful global crabbing scheme in KEKB, to restore effective head-on collisions. Using weak-strong simulations, the study assesses the potential of this global crabbing scheme for the EIC while emphasizing the need for adiabatic cavity ramping to prevent luminosity loss. Additionally, the research outlines potential risks associated with beam dynamics in implementing this scheme.