Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV

Khachatryan, V.; Işıldak, Bora

dc.contributor.author	Khachatryan, V.
dc.contributor.author	Işıldak, Bora
dc.date.accessioned	2017-04-20T12:09:10Z
dc.date.available	2017-04-20T12:09:10Z
dc.date.issued	2017
dc.identifier.issn	1029-8479
dc.identifier.uri	http://hdl.handle.net/10679/4945
dc.identifier.uri	https://link.springer.com/article/10.1007%2FJHEP03(2017)101
dc.description.abstract	The results of a first search for CP violation in the production and decay of top quark-antiquark ( tt¯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√=8s=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¯tt¯ production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.
dc.description.sponsorship	BMWFW and FWF; FNRS and FWO; CNPq, CAPES, FAPERJ, and FAPESP; MES; CERN; CAS, MOST, and NSFC; COLCIENCIAS; MSES and CSF; RPF; SENESCYT; MoER, ERC IUT and ERDF; Academy of Finland, MEC, and HIP; CEA and CNRS/IN2P3; BMBF, DFG, and HGF; GSRT; OTKA and NIH; DAE and DST; IPM; SFI; INFN; MSIP and NRF; LAS; MOE and UM; BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI; MBIE; PAEC; MSHE and NSC; FCT; JINR; MON, RosAtom, RAS and RFBR; MESTD; SEIDI and CPAN; Swiss Funding Agencies; MST; ThEPCenter, IPST, STAR and NSTDA; TUBITAK and TAEK; NASU and SFFR; STFC; DOE and NSF. Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET; the Leventis Foundation; the Alfred P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture; the Agentschap voor Innovatie door Wetenschap en Technologie; the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus program of the Ministry of Science and Higher Education, the National Science Center, contracts Harmonia 2014/14/M/ST2/00428, Opus 2013/11/B/ST2/04202, 2014/13/B/ST2/02543 and 2014/15/B/ST2/03998, Sonata-bis 2012/07/E/ST2/01406; the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; the Programa Clarín-COFUND del Principado de Asturias; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2ndCentury Project Advancement Project (Thailand); and the Welch Foundation, contract C-1845.
dc.language.iso	eng	en_US
dc.publisher	Springer International	en_US
dc.relation	info:turkey/grantAgreement/TUBITAK
dc.relation.ispartof	Journal Of High Energy Physics	en_US
dc.rights	restrictedAccess
dc.title	Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV	en_US
dc.type	Article	en_US
dc.peerreviewed	yes
dc.publicationstatus	published	en_US
dc.contributor.department	Özyeğin University
dc.contributor.authorID	(ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora
dc.contributor.ozuauthor	Işıldak, Bora
dc.creator	The CMS Collaboration
dc.identifier.wos	WOS:000397705400005
dc.identifier.doi	10.1007/JHEP03(2017)101
dc.subject.keywords	CP violation
dc.subject.keywords	Hadron-Hadron scattering (experiments)
dc.subject.keywords	Top physics
dc.identifier.scopus	SCOPUS:2-s2.0-85016311144
dc.contributor.authorMale	1