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Measurement of the $t$-channel single top-quark production cross section at $\sqrt{s}=13$ TeV with the ATLAS detector and interpretations of the measurement
by Maren Stratmann
Submission summary
| Authors (as registered SciPost users): | Maren Stratmann |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2411.12388v1 (pdf) |
| Date accepted: | Jan. 14, 2025 |
| Date submitted: | Nov. 21, 2024, 1:28 p.m. |
| Submitted by: | Stratmann, Maren |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | The 17th International Workshop on Top Quark Physics (TOP2024) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
The $t$-channel is the dominant production channel for single top-quarks at the LHC. The total cross section of this process is measured by ATLAS in proton-proton collisions at a center-of-mass energy $\sqrt{s}=13$ TeV. The production cross sections for single top-quarks and single top-antiquarks are measured to be $\sigma_{tq}=\text{137}^{+8}_{-8}$ pb and $\sigma_{\bar{t}q}=\text{84}^{+6}_{-5}$ pb. For the combined cross section and the ratio of the cross sections $R_t$, $\sigma_{tq+\bar{t}q}=\text{221}^{+13}_{-13}$ pb and $R_t=\text{1.636}^{+0\text{.}036}_{-0\text{.}034}$ are obtained. As interpretations of the measurement, limits are set on the EFT operator $O_{Qq}^{3,1}$ and on the CKM matrix elements $|V_{td}|$, $|V_{ts}|$ and $|V_{tb}|$.
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Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
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Requested changes
- Place figures after the reference, close to the text where the figures are described.
- Caption figure 1, define Dnn
- Section 2, "A good agreement between the MC simulation and the data is reached." Are all contributions estimated by MC? Figure 2 mentions predictions, if some contributions are data-driven, the sentence needs to be corrected accordingly.
- Section 3.1, mention to what is the binned maximum likelihood fit performed to, is it also in the SRs and Dnn?
- Figure 3, if space permits increase the size of the figures, it is difficult to see the best fit marks.
- Section 4, "The theory predictions calculated at NNLO are in good agreement with the results.", add "except for ABMP and NNPDF3.1"
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