| CMS Note | |
| Report number | CMS-CR-2024-076 |
| Title | Inclusive and differential cross-section measurements in the single top tW e-mu channel with CMS at Run 3 (YSF) |
| Author(s) | Soto Rodriguez, Alejandro (Oviedo U.) |
| Publication | 2024 |
| Collaboration | CMS Collaboration |
| Imprint | 30 Apr 2024 |
| Number of pages | 5 |
| Presented at | 58th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 24 - 31 Mar 2024 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Keywords | General |
| Abstract | The first measurements of the inclusive and normalised differential cross sections for the production of single top quarks in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13.6 TeV are presented. The data used were recorded with the CMS detector at the LHC during 2022, and correspond to an integrated luminosity of 34.7 $\mathrm{fb}^{-1}$. The analysed events contain one muon and one electron in the final state. A cross section of $84.1\pm 2.1(\mathrm{stat})\,^{+9.8}_{-10.2}(\mathrm{syst})\pm 3.3(\mathrm{lumi})$ pb is obtained, consistent with the predictions of the standard model. For the differential measurements, a fiducial region is defined according to the detector acceptance. The resulting differential distributions are unfolded to particle level showing good agreement with the predictions at next-to-leading order in perturbative quantum chromodynamics. |
Record created 2024-05-13, last modified 2024-05-14
