Search for CP violation in tt¯ production and decay in proton-proton collisions at √s=8 TeV

The CMS collaboration

Результат исследования: Научные публикации в периодических изданияхстатья

4 Цитирования (Scopus)

Аннотация

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.[Figure not available: see fulltext.]

Язык оригиналаанглийский
Номер статьи101
Число страниц35
ЖурналJournal of High Energy Physics
Том2017
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мар 2017

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