Choudhury, S and Komaragiri, JR and Tiwari, PC (2020) Measurement of the top quark pair production cross section in dilepton final states containing one � lepton in pp collisions at �s = 13 TeV. In: Journal of High Energy Physics, 2020 (2).
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Abstract
The cross section of top quark pair production is measured in the tt¯�(�ν�)(�hν�)bb¯ final state, where �h refers to the hadronic decays of the � lepton, and � is either an electron or a muon. The data sample corresponds to an integrated luminosity of 35.9 fb�1 collected in proton-proton collisions at s = 13 TeV with the CMS detector. The measured cross section is �t t ¯ = 781 ± 7 (stat) ± 62 (syst) ± 20 (lumi) pb, and the ratio of the partial width �(t � �ν�b) to the total decay width of the top quark is measured to be 0.1050 ± 0.0009 (stat) ± 0.0071 (syst). This is the first measurement of the t t ¯ production cross section in proton-proton collisions at s = 13 TeV that explicitly includes � leptons. The ratio of the cross sections in the ��h and �� final states yields a value R��h/ll = 0.973 ± 0.009 (stat) ± 0.066 (syst), consistent with lepton universality. Figure not available: see fulltext.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of High Energy Physics |
| Publisher: | Springer |
| Additional Information: | Copyright for this article belongs to authors. |
| Keywords: | Hadron-Hadron scattering (experiments), Top physics |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 17 Oct 2024 06:18 |
| Last Modified: | 17 Oct 2024 06:18 |
| URI: | http://eprints.iisc.ac.in/id/eprint/64880 |
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