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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3480| Title: | Cross section measurement of t-channel single top quark production in pp collisions at sqrt s=13 TeV |
| Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | CMS Physics Standard model Exceptionally successful Single top quarks Artificial neural network 2017 |
| Issue Date: | Sep-2017 |
| Publisher: | Elsevier B.V. |
| Citation: | Physics Letters B, 772, 752-776. |
| Abstract: | The cross section for the production of single top quarks in the t channel is measured in proton-proton collisions at 13TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 2.2fb -1. The event selection requires one muon and two jets where one of the jets is identified as originating from a bottom quark. Several kinematic variables are then combined into a multivariate discriminator to distinguish signal from background events. A fit to the distribution of the discriminating variable yields a total cross section of 238+-13(stat)+-29(syst)pb and a ratio of top quark and top antiquark production of Rt-ch.=1.81+-0.18(stat)+-0.15(syst). From the total cross section the absolute value of the CKM matrix element Vtbis calculated to be 1.05+-0.07(exp)+-0.02(theo). All results are in agreement with the standard model predictions. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3480 https://doi.org/10.1016/j.physletb.2017.07.047 |
| ISSN: | 0370-2693 1873-2445 |
| Appears in Collections: | JOURNAL ARTICLES |
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