Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV
: 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 co...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer Nature
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/63064/ http://irep.iium.edu.my/63064/1/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_article.pdf http://irep.iium.edu.my/63064/2/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_scopus.pdf |
| _version_ | 1848785967468511232 |
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| author | Khachatryan, Vardan Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Md. Ali, Mohd. Adli |
| author_facet | Khachatryan, Vardan Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Md. Ali, Mohd. Adli |
| author_sort | Khachatryan, Vardan |
| building | IIUM Repository |
| collection | Online Access |
| description | : 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. |
| first_indexed | 2025-11-14T17:01:33Z |
| format | Article |
| id | iium-63064 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:01:33Z |
| publishDate | 2017 |
| publisher | Springer Nature |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-630642018-11-05T07:47:10Z http://irep.iium.edu.my/63064/ Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV Khachatryan, Vardan Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics : 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. Springer Nature 2017-03-01 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/63064/1/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_article.pdf application/pdf en http://irep.iium.edu.my/63064/2/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_scopus.pdf Khachatryan, Vardan and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Md. Ali, Mohd. Adli (2017) Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV. Journal of High Energy Physics, 2017 (3). pp. 1-34. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP03%282017%29101.pdf 10.1007/JHEP03(2017)101 |
| spellingShingle | Q Science (General) QC Physics Khachatryan, Vardan Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Md. Ali, Mohd. Adli Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title | Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title_full | Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title_fullStr | Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title_full_unstemmed | Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title_short | Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV |
| title_sort | search for cp violation in tt¯ production and decay in proton-proton collisions at √s=8 tev |
| topic | Q Science (General) QC Physics |
| url | http://irep.iium.edu.my/63064/ http://irep.iium.edu.my/63064/ http://irep.iium.edu.my/63064/ http://irep.iium.edu.my/63064/1/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_article.pdf http://irep.iium.edu.my/63064/2/63064_Search%20for%20CP%20violation%20in%20tt%C2%AF%20production_scopus.pdf |