Study of ATLAS sensitivity to FCNC top decays

Mostrar otras versiones (1)

The ATLAS experiment sensitivity to top quark Flavour Changing Neutral Current (FCNC) decays was studied at LHC using ttbar events. While one of the top quarks is expected to follow the dominant Standard Model decay t->bW, the other decays through a FCNC channel, i.e. t-> Z u(c), t-> gamma...

Descripción completa

Detalles Bibliográficos
Autores principales: Carvalho, J., Castro, Nuno Filipe, Chikovani, L., Djobava, T., Dodd, J., McGrath, S., Onofre, A., Parsons, J., Veloso, F.
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-007-0434-0
http://cds.cern.ch/record/1074014
_version_ 1780913438677008384
author Carvalho, J.
Castro, Nuno Filipe
Chikovani, L.
Djobava, T.
Dodd, J.
McGrath, S.
Onofre, A.
Parsons, J.
Veloso, F.
author_facet Carvalho, J.
Castro, Nuno Filipe
Chikovani, L.
Djobava, T.
Dodd, J.
McGrath, S.
Onofre, A.
Parsons, J.
Veloso, F.
author_sort Carvalho, J.
collection CERN
description The ATLAS experiment sensitivity to top quark Flavour Changing Neutral Current (FCNC) decays was studied at LHC using ttbar events. While one of the top quarks is expected to follow the dominant Standard Model decay t->bW, the other decays through a FCNC channel, i.e. t-> Z u(c), t-> gamma u(c) or t-> g u(c). Different types of analyses, applied to each FCNC decay mode, were compared. The FCNC branching ratio sensitivity (assuming a 5sigma signal significance) and 95% confidence level limits on the branching ratios (in the hypothesis of signal absence) were obtained.
id cern-1074014
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10740142023-03-20T08:56:45Zdoi:10.1140/epjc/s10052-007-0434-0http://cds.cern.ch/record/1074014engCarvalho, J.Castro, Nuno FilipeChikovani, L.Djobava, T.Dodd, J.McGrath, S.Onofre, A.Parsons, J.Veloso, F.Study of ATLAS sensitivity to FCNC top decaysDetectors and Experimental TechniquesParticle Physics - ExperimentThe ATLAS experiment sensitivity to top quark Flavour Changing Neutral Current (FCNC) decays was studied at LHC using ttbar events. While one of the top quarks is expected to follow the dominant Standard Model decay t->bW, the other decays through a FCNC channel, i.e. t-> Z u(c), t-> gamma u(c) or t-> g u(c). Different types of analyses, applied to each FCNC decay mode, were compared. The FCNC branching ratio sensitivity (assuming a 5sigma signal significance) and 95% confidence level limits on the branching ratios (in the hypothesis of signal absence) were obtained.The ATLAS experiment sensitivity to top quark Flavour Changing Neutral Current (FCNC) decays was studied at LHC using ttbar events. While one of the top quarks is expected to follow the dominant Standard Model decay t->bW, the other decays through a FCNC channel, i.e. t-> Z u(c), t-> gamma u(c) or t-> g u(c). Different types of analyses, applied to each FCNC decay mode, were compared. The FCNC branching ratio sensitivity (assuming a 5sigma signal significance) and 95% confidence level limits on the branching ratios (in the hypothesis of signal absence) were obtained.arXiv:0712.1127SN-ATLAS-2007-059SN-ATLAS-2007-059oai:cds.cern.ch:10740142007-12-10
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Carvalho, J.
Castro, Nuno Filipe
Chikovani, L.
Djobava, T.
Dodd, J.
McGrath, S.
Onofre, A.
Parsons, J.
Veloso, F.
Study of ATLAS sensitivity to FCNC top decays
title Study of ATLAS sensitivity to FCNC top decays
title_full Study of ATLAS sensitivity to FCNC top decays
title_fullStr Study of ATLAS sensitivity to FCNC top decays
title_full_unstemmed Study of ATLAS sensitivity to FCNC top decays
title_short Study of ATLAS sensitivity to FCNC top decays
title_sort study of atlas sensitivity to fcnc top decays
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url https://dx.doi.org/10.1140/epjc/s10052-007-0434-0
http://cds.cern.ch/record/1074014
work_keys_str_mv AT carvalhoj studyofatlassensitivitytofcnctopdecays
AT castronunofilipe studyofatlassensitivitytofcnctopdecays
AT chikovanil studyofatlassensitivitytofcnctopdecays
AT djobavat studyofatlassensitivitytofcnctopdecays
AT doddj studyofatlassensitivitytofcnctopdecays
AT mcgraths studyofatlassensitivitytofcnctopdecays
AT onofrea studyofatlassensitivitytofcnctopdecays
AT parsonsj studyofatlassensitivitytofcnctopdecays
AT velosof studyofatlassensitivitytofcnctopdecays

Ejemplares similares