Dynamic Focusing to Suppress Emittance Transfer in Crab-Crossing Flat Beam Collisions
ORAL
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.
*This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. This work was supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy, and by a U.S. Department of Energy Early Career Award.
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Publication: Submitted to Physical Review Letters, Accession Code: LF20549.
Presenters
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Derong Xu
- Brookhaven National Laboratory (BNL)