Dynamic Focusing to Suppress Emittance Transfer in Crab-Crossing Flat Beam Collisions

Oral-In-person

Abstract

This talk presents a dynamic focusing scheme that combines sextupoles with crab cavities to suppress emittance transfer in crab-crossing flat beam collisions. The approach mitigates the synchro-betatron resonance induced by the hourglass effect, thereby reducing vertical emittance growth and preserving luminosity. Beam-beam simulations based on Electron–Ion Collider parameters confirm the suppression of synchro-betatron–driven emittance exchange, providing a practical path toward luminosity maximization in flat-beam colliders.

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Publication: Submitted to Physical Review Letters, Accession Code: LF20549.

Presenters

  • Derong Xu

    • Brookhaven National Laboratory (BNL)

Authors

  • Derong Xu

    • Brookhaven National Laboratory (BNL)

  • Michael Blaskiewicz

    • Brookhaven National Laboratory (BNL)

  • Yue Hao

    • Michigan State University

  • Yun Luo

    • Brookhaven National Laboratory (BNL)

  • Christoph Montag

    • Brookhaven National Laboratory (BNL)

  • Sergei Nagaitsev

    • Brookhaven National Laboratory (BNL)

  • Boris Podobedov

    • Brookhaven National Laboratory (BNL)

  • Vadim Ptitsyn

    • Brookhaven National Laboratory

  • Ferdinand Willeke

    • Brookhaven National Laboratory (BNL)

  • Binping Xiao

    • Brookhaven National Laboratory

  • J Berg

    • Brookhaven National Laboratory