Challenging luminosity measurements at the Electron-Ion Collider

Piotrzkowski, Krzysztof
(2021) Journal of Instrumentation — Vol. 16 (2021)

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  • Piotrzkowski, KrzysztofUCLouvain
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Abstract
A precise determination of absolute luminosity, using the bremsstrahlung process, at the future Electron-Ion Collider (EIC) will be very demanding, and its three major challenges are discussed herein. First, the bremsstrahlung rate suppression due to the so-called beam size effect has to be well controlled. Secondly, the impact of huge synchrotron radiation fluxes should be mitigated. Thirdly, enormous bremsstrahlung event rates, in excess of 10 GHz, have to be coped with. A basic layout of the luminosity measurement setup at the EIC, addressing these issues, is proposed, including preliminary detector technology choices. Finally, the uncertainties of three proposed methods are also discussed.
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Piotrzkowski, K. (2021). Challenging luminosity measurements at the Electron-Ion Collider. Journal of Instrumentation, 16. https://doi.org/10.1088/1748-0221/16/09/P09023 (Original work published 2021)