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Top-quark mass determination in the optimised threshold scan
by Kacper Nowak, Aleksander Filip Zarnecki
Submission summary
| Authors (as registered SciPost users): | Aleksander Filip Zarnecki |
| Submission information | |
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| Preprint Link: | scipost_202204_00004v1 (pdf) |
| Date accepted: | April 28, 2022 |
| Date submitted: | April 2, 2022, 12:24 p.m. |
| Submitted by: | Aleksander Filip Zarnecki |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
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Abstract
One of the important goals at the future e$^+$e$^−$ colliders is to measure the top-quark mass and width in a scan of the pair production threshold. Presented in this work is the most general approach to the top-quark mass determination from the threshold scan at CLIC, with all relevant model parameters and selected systematic uncertainties included in the fit procedure. In the baseline scan scenario the top-quark mass can be extracted with precision of the order of 30 to 40 MeV, already for 100 fb$^{−1}$ of data collected at the threshold. We present the optimisation procedure based on the genetic algorithm with which the statistical uncertainty of the mass measurement can be reduced by about 20%.
Published as SciPost Phys. Proc. 8, 173 (2022)