Researchers portal

Buscar

Estamos realizando la búsqueda. Por favor, espere...

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

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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

Fuente: Journal of High Energy Physics Vol. 2017, Iss. 03, Art. Num. 101

Editorial: Springer Verlag

Fecha de publicación: 01/03/2017

Nº de páginas: 35

Tipo de publicación: Artículo de Revista

ISSN: 1126-6708,1029-8479

Url de la publicación: https://doi.org/10.1007/JHEP03(2017)101