Abstract
We have developed an intrinsic resonance free circular electron accelerator. This lattice could be placed in the existing RHIC tunnel and accelerate electrons from 400 MeV to 18 GeV avoiding all major polarization loss usual in such machines.
Highlights
The visible matter in our universe is made up of a complex bound substructure of quarks and gluons
Understanding how the properties of matter originate from this substructure is major goal of nuclear physics and the central motivation for the construction of an Electron-Ion Collider (EIC)
If such a machine is chosen to be built at Brookhaven National Labs (BNL), one of the important challenges for this new collider is the construction of a polarized electron injector which is cost effective
Summary
The visible matter in our universe is made up of a complex bound substructure of quarks and gluons. By colliding electrons with heavy nuclei, the EIC will further elucidate the properties of the quark-gluon plasma as well as explore a possible saturation of the gluonic state at higher energies. If such a machine is chosen to be built at Brookhaven National Labs (BNL), one of the important challenges for this new collider is the construction of a polarized electron injector which is cost effective. Solenoid magnets with such a profile of ramping speed and peak field become technically very challenging and very expensive to manufacture and operate To address this issue we present a spin resonance free electron ring injector for the EIC. The current work develops the design further and considers a ramp time of 100–200 msecs, with bypasses around the interaction points to accommodate the detectors
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