Journal article
Search for CP violation in tt¯ production and decay in proton-proton collisions at s√=8 TeV
Journal of high energy physics : JHEP, Vol.2017, 101
03/20/2017
DOI: 10.1007/JHEP03(2017)101
Abstract
The results of a first search for CP violation in the production and decay of top quark-antiquark (tt¯) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at s√=8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7 fb−1. Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with tt¯ production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.
Details
- Title: Subtitle
- Search for CP violation in tt¯ production and decay in proton-proton collisions at s√=8 TeV
- Creators
- CMS Collaboration (Institution)V Khachatryan - A. Alikhanyan National LaboratoryA. M. Sirunyan - A. Alikhanyan National Laboratory
- Contributors
- B. Bilki (Contributor) - University of IowaW Clarida (Contributor) - University of IowaKamuran Dilsiz (Contributor) - University of Iowa, Physics and AstronomyS. Durgut (Contributor) - University of IowaR. P. Gandrajula (Contributor) - University of IowaM. Haytmyradov (Contributor) - University of IowaV Khristenko (Contributor) - University of IowaJ-P Merlo (Contributor) - University of IowaH Mermerkaya (Contributor) - University of IowaAlexi Mestvirishvili (Contributor) - University of Iowa, Physics and AstronomyA. Moeller (Contributor) - University of IowaJane M Nachtman (Contributor) - University of Iowa, Physics and AstronomyHasan Ogul (Contributor) - University of Iowa, Physics and AstronomyF. Ozok (Contributor) - University of IowaAldo Penzo (Contributor) - University of Iowa, Physics and AstronomyC. Snyder (Contributor) - University of IowaE. Tiras (Contributor) - University of IowaJames W Wetzel (Contributor) - University of Iowa, Physics and AstronomyKai Yi (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Journal of high energy physics : JHEP, Vol.2017, 101
- DOI
- 10.1007/JHEP03(2017)101
- ISSN
- 1126-6708
- eISSN
- 1029-8479
- Publisher
- Springer
- Language
- English
- Date published
- 03/20/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984440059802771
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