Tech Note Information

Name

Electron-Ion Collider (EC)

BNL Number

BNL-229834-2026-TECH

BNL Series Number

229834

Description/Abstract

The Electron–Ion Collider (EIC), to be constructed at Brookhaven National Laboratory, will\\\\r\\\\ncollide polarized, high-energy electron beams with hadron beams, achieving peak luminosities of up\\\\r\\\\nto 1.0 × 1034 cm−2s−1. To reach such high luminosity, the EIC will employ flat-beam collisions\\\\r\\\\nat the interaction point. The design transverse emittance ratio will be about 10:1 in the Hadron\\\\r\\\\nStorage Ring (HSR). Thanks to stochastic cooling and precise decoupling, we successfully generated\\\\r\\\\nand accelerated gold ion beams with a large emittance ratio of 11:1 in the Relativistic Heavy Ion\\\\r\\\\nCollider (RHIC). In this article, we present results of intrabeam scattering (IBS) measurements and\\\\r\\\\nmodeling for large-emittance gold ion beams, both without and with controlled betatron coupling.\\\\r\\\\nTo model the IBS growth, we use the formulas developed by Lebedev and Nagaitsev.

Publication Date

5/4/2026

Submittal Date

6/9/2026

Author Information

Primary Author

Y. Luo

Other Authors

Lepore B.; Mernick K.; Bergan W.; Nagaitsev S.

DOE Subject Category

PARTICLE ACCELERATORS

Other Publication Number

EIC-ADD-TN-169