What question did this study set out to answer?

The central aim is to understand how electron beam size ripple influences proton emittance growth at the EIC.

February 2, 2026Open Access

Impact of electron beam size ripple on proton emittance growth for EIC

Key Points

The central aim is to understand how electron beam size ripple influences proton emittance growth at the EIC.
Analyzed the effects of electron beam size ripple on proton beams
Focused on beam-beam interactions to observe changes in emittance
Explored mitigation strategies to maintain flat beam aspects
Electron beam size ripple significantly increases vertical emittance
Vertical emittance is more affected by external noise compared to horizontal emittance
Mitigation strategies can help preserve beam quality and luminosity

Abstract

The Electron-Ion Collider (EIC) employs a flat hadron beam to achieve high luminosity, with the proton beam's vertical emittance being an order of magnitude smaller than its horizontal one. The smaller vertical emittance is sensitive to external noise. This study examines electron beam size ripple, a narrow-band noise centered around 60~Hz in the US. Through beam-beam interaction, the electron size ripple contributes to vertical emittance growth. Mitigation strategies are discussed to preserve the flat beam aspect ratio.

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Xu et al. (Thu,) studied this question.

www.synapsesocial.com/papers/6980fc91c1c9540dea80e5ce — DOI: https://doi.org/10.18429/jacow-napac2025-tup050

Authors

D. Xu

Boris Podobedov

Yi-Kai Kan

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Impact of electron beam size ripple on proton emittance growth for EIC

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Cite this study

Authors

Actions

References and Citations

Citation Network

Connected Papers

Discussion