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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
23
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pubmed:dateCreated |
2011-1-14
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pubmed:abstractText |
We present a measurement of the top-quark width in the lepton+jets decay channel of tt events produced in p p collisions at Fermilab's Tevatron collider and collected by the CDF II detector. From a data sample corresponding to 4.3 fb(-1) of integrated luminosity, we identify 756 candidate events. The top-quark mass and the mass of the hadronically decaying W boson that comes from the top-quark decay are reconstructed for each event and compared with templates of different top-quark widths (?(t)) and deviations from nominal jet energy scale (?(JES)) to perform a simultaneous fit for both parameters, where ?(JES) is used for the in situ calibration of the jet energy scale. By applying a Feldman-Cousins approach, we establish an upper limit at 95% confidence level (CL) of ?(t) <7.6 GeV and a two-sided 68% CL interval of 0.3 GeV <?(t) <4.4? GeV for a top-quark mass of 172.5 GeV/c(2), which are consistent with the standard model prediction.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
1079-7114
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pubmed:author |
pubmed-author:TuYY,
pubmed-author:KatoYY,
pubmed-author:ThompsonG AGA,
pubmed-author:JonesMM,
pubmed-author:LisMM,
pubmed-author:PaulDD,
pubmed-author:SmithJ RJR,
pubmed-author:HaraKK,
pubmed-author:GibsonKK,
pubmed-author:NagaiYY,
pubmed-author:TangJJ,
pubmed-author:CastroAA,
pubmed-author:ClarkDD,
pubmed-author:JohnsonWW,
pubmed-author:SatoKK,
pubmed-author:OhS HSH,
pubmed-author:ChenY CYC,
pubmed-author:TakeuchiYY,
pubmed-author:WilsonPP,
pubmed-author:YoshidaTT,
pubmed-author:SchmidtAA,
pubmed-author:NielsenJJ,
pubmed-author:MartínezMM,
pubmed-author:WeinbergerMM,
pubmed-author:ConwayJJ,
pubmed-author:CoxD JDJ,
pubmed-author:YamamotoKK,
pubmed-author:KurataMM,
pubmed-author:GrinsteinSS,
pubmed-author:LeeH SHS,
pubmed-author:GinsburgC MCM,
pubmed-author:FieldRR,
pubmed-author:KondoKK,
pubmed-author:BauerGG,
pubmed-author:MukherjeeAA,
pubmed-author:LeeII,
pubmed-author:PatrickJJ,
pubmed-author:BenjaminDD,
pubmed-author:WilsonJ SJS,
pubmed-author:WagnerR LRL,
pubmed-author:LeeJ SJS,
pubmed-author:SchmittMM,
pubmed-author:SantiLL,
pubmed-author:SmithG GGG,
pubmed-author:MehtaAA,
pubmed-author:LancasterMM,
pubmed-author:VogelMM,
pubmed-author:JansHH,
pubmed-author:SchmidtE EEE,
pubmed-author:HareDD,
pubmed-author:ClarkAA,
pubmed-author:ChoKK,
pubmed-author:LewisJ DJD,
pubmed-author:RossiMM,
pubmed-author:LeeS WSW,
pubmed-author:KimH WHW,
pubmed-author:EbinaKK,
pubmed-author:HaraII,
pubmed-author:LeaAA,
pubmed-author:SchwarzTT,
pubmed-author:MOER ERE,
pubmed-author:JamesEE,
pubmed-author:CampbellMM,
pubmed-author:HusseinMM,
pubmed-author:MiyakeHH,
pubmed-author:WrightTT,
pubmed-author:KimuraNN,
pubmed-author:YangY CYC,
pubmed-author:CampanelliMM,
pubmed-author:DengJJ,
pubmed-author:OhY HYH,
pubmed-author:WagnerPP,
pubmed-author:HornDD,
pubmed-author:RusuVV,
pubmed-author:FranklinMM,
pubmed-author:MitraAA,
pubmed-author:DonathRR,
pubmed-author:KimH SHS,
pubmed-author:PiacentiniII,
pubmed-author:WolfeHH,
pubmed-author:MooreRR,
pubmed-author:ShiraishiSS,
pubmed-author:VidalMM,
pubmed-author:HatakeyamaKK,
pubmed-author:HaytDD
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