Integrated luminosity measurement at CEPC
Ivan Smiljani\'c, Ivanka Bo\v{z}ovi\'c-Jelisav\v{c}i\'c, Goran, Ka\v{c}arevi\'c, Nata\v{s}a Vuka\v{s}inovi\'c, Tatjana Agatonovi\'c-Jovin,, Gordana Milutinovi\'c-Dumbelovi\'c, Jasna Stevanovi\'c, Mirko Radulovi\'c
TL;DR
This paper assesses the feasibility of achieving permille-level integrated luminosity measurement at CEPC, focusing on detector precision, beam requirements, and background, and discusses a method for effective center-of-mass determination.
Contribution
It provides a comprehensive feasibility study for high-precision luminosity measurement at CEPC, including mechanical, beam, and background considerations, and explores a novel center-of-mass determination method.
Findings
Feasibility of permille-level luminosity measurement analyzed
Mechanical and beam-related requirements identified
Effective center-of-mass determination method discussed
Abstract
The very forward region is one of the most challenging regions to instrument at a future collider. At CEPC, machine-detector interface includes, among others, a calorimeter dedicated for precision measurement of the integrated luminosity at a permille level or better. Here we review a feasibility of such precision, from the point of view of luminometer mechanical precision and positioning, beam-related requirements and physics background.A method of the effective center-of-mass determination from , initially proposed for FCC, is also discussed for the CEPC beams.
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Taxonomy
TopicsParticle Detector Development and Performance · Advanced X-ray Imaging Techniques · Medical Imaging Techniques and Applications