Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector

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This paper contains the first realistic estimate for the CMS sensitivity to Flavour Changing Neutral Currents (FCNC) in the top quark sector. The non Standard Model decays t -> Zq and t -> gamma q (q represents c or u quarks) have been studied at sqrts = 14 TeV exploiting leptonic decays of th...

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Autores principales: Karafasoulis, C, Kyriakis, Aristotelis, Vermisoglou, Grigorios, Benucci, Leonardo, Giammanco, Andrea, Palla, Fabrizio
Lenguaje:eng
Publicado: 2006
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/962056
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author Karafasoulis, C
Kyriakis, Aristotelis
Vermisoglou, Grigorios
Benucci, Leonardo
Giammanco, Andrea
Palla, Fabrizio
author_facet Karafasoulis, C
Kyriakis, Aristotelis
Vermisoglou, Grigorios
Benucci, Leonardo
Giammanco, Andrea
Palla, Fabrizio
author_sort Karafasoulis, C
collection CERN
description This paper contains the first realistic estimate for the CMS sensitivity to Flavour Changing Neutral Currents (FCNC) in the top quark sector. The non Standard Model decays t -> Zq and t -> gamma q (q represents c or u quarks) have been studied at sqrts = 14 TeV exploiting leptonic decays of the Z boson and the photon. A realistic detector simulation has been adopted and the most relevant systematic effects have been addressed. The 5- sigma discovery limits for the two decays are BR(t-> qZ) =11.4 x 10^ -4 and BR(t -> gamma q ) =5.7 x 10^ -4, allowing some models of new physics to be tested.
id cern-962056
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9620562019-09-30T06:29:59Zhttp://cds.cern.ch/record/962056engKarafasoulis, CKyriakis, AristotelisVermisoglou, GrigoriosBenucci, LeonardoGiammanco, AndreaPalla, FabrizioStudy of Flavour Changing Neutral Currents in Top Quark Decays with the CMS DetectorDetectors and Experimental TechniquesThis paper contains the first realistic estimate for the CMS sensitivity to Flavour Changing Neutral Currents (FCNC) in the top quark sector. The non Standard Model decays t -> Zq and t -> gamma q (q represents c or u quarks) have been studied at sqrts = 14 TeV exploiting leptonic decays of the Z boson and the photon. A realistic detector simulation has been adopted and the most relevant systematic effects have been addressed. The 5- sigma discovery limits for the two decays are BR(t-> qZ) =11.4 x 10^ -4 and BR(t -> gamma q ) =5.7 x 10^ -4, allowing some models of new physics to be tested.CMS-NOTE-2006-093oai:cds.cern.ch:9620562006-06-07
spellingShingle Detectors and Experimental Techniques
Karafasoulis, C
Kyriakis, Aristotelis
Vermisoglou, Grigorios
Benucci, Leonardo
Giammanco, Andrea
Palla, Fabrizio
Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title_full Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title_fullStr Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title_full_unstemmed Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title_short Study of Flavour Changing Neutral Currents in Top Quark Decays with the CMS Detector
title_sort study of flavour changing neutral currents in top quark decays with the cms detector
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/962056
work_keys_str_mv AT karafasoulisc studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector
AT kyriakisaristotelis studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector
AT vermisoglougrigorios studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector
AT benuccileonardo studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector
AT giammancoandrea studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector
AT pallafabrizio studyofflavourchangingneutralcurrentsintopquarkdecayswiththecmsdetector

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