First simultaneous measurement of the top quark mass in thelepton+jetsand dilepton channels at CDF

T Aaltonen,J Keung,C Grosso-Pilcher,H Gerberich,A Napier,R L Wagner,F Ptohos,C Wolfe,P Mazzanti,A Bodek,D Tonelli,T Kuhr,W C Wester,A Anastassov,L Lovas,T J Phillips,A Scribano,C I Ciobanu,A Gresele,D Chokheli,P K Teng,J Deng,M P Schmidt,C Plager,M Lindgren,P Totaro,N Goldschmidt,R Mcnulty,J Lueck,L Brigliadori,A Heijboer,T Tomura,E Lee,E James,S Carron,J Spalding,M Giunta,C A Cox,E Brubaker,P Sinervo,R E Blair,E Palencia,A Rahaman,G B Yu,G Busetto,J Nett,G Introzzi,R St Denis,L Sartori,V Papadimitriou,G Volpi,S Wolbers,M Kurata,E Thomson,N P Kulkarni,A Menzione,A Aurisano,Y Shon,G Chlachidze,T Vine,M Franklin,D Amidei,R Culbertson,J Patrick,L Santi,D Krop,K Nakamura,S Shiraishi,D Glenzinski,S Rolli,M Binkley,B A Barnett,K Tollefson,D Toback,A Papaikonomou,Y Takeuchi,M Gold,A Mitra,K Kondo,T Maruyama,M Rossi,P Lukens,D J Cox,G Bauer,S H Kim,M Rescigno,E J Jeon,S Pagan Griso,S Carrillo,V Necula,E Wicklund,C Neu,J Yoh,A Semenov,S Somalwar,G Flanagan,J D Lewis,A Canepa,A Boveia,D O Litvintsev,D Errede,J C Cully,M Lancaster,L Demortier,P Roy,S Kwang,C M Ginsburg,D Torretta,F Vázquez,W T Fedorko,G Williams,C Bromberg,O González,G Pauletta,B Parks,S Klimenko,K Goulianos,A Varganov,I Oksuzian,C Ferrazza,O Poukhov,S Budd,P Ttito-Guzmán,S Pashapour,D Stentz,M Mussini,A Nagano,I Lazzizzera,J Conway,S Cabrera,M Tecchio,B T Huffman,K S Mcfarland,G Choudalakis,M Milnik,G De Lorenzo,M Heck,Z Gunay-Unalan,G Velev,P De Barbaro,M Hartz,G Punzi,L Zanello,R Orava,M Shimojima,K Genser,F Canelli,S H Chuang,T Wright,E Pueschel,T Rodriguez,U K Yang,Y S Chung,J Lys,C Haber,C Cuenca Almenar,R Mumford,W H Chung,R Forrest,M Campbell,D Lucchesi,P Movilla Fernandez,M J Kim,A Ruiz,P F Shepard,A T Laasanen,R Vidal,K Sliwa,S Errede,J Slaunwhite,A Elagin,L Sexton-Kennedy,G Lungu,M J Morello,A Artikov,P Wilson,T Wakisaka,N Van Remortel,J Beringer,F D Snider,J Efron,F Prakoshyn,A Golossanov,D J Kong,J Mülmenstädt,P Squillacioti,R Vilar,S Behari,O Saltó,M Jones,D Waters,W K Sakumoto,P Schlabach,G Cortiana,W Ashmanskas,A J Slaughter,M Feindt,F Happacher,K Gibson,A Loginov,M Hare,S Lami,C Vellidis,D Dagenhart,F Azfar,M Datta,H S Budd,J Naganoma,N Moggi,P Giromini,M Loreti,S Torre,J Budagov,T Okusawa,F Garberson,J Huston,G Giurgiu,V Ramakrishnan,E E Schmidt,M Cordelli,C Deluca,V Bartsch,B Knuteson,D Beecher,C S Moon,Y Seiya,A S Thompson,E Vataga,J E Jung,A Manousakis-Katsikakis,T Akimoto,K K Joo,A Mukherjee,J L Gimmell,S Donati,B R Ko,R Kephart,S De Cecco,I Bizjak,P E Karchin,N S Lockyer,A Deisher,A Pronko,L Nodulman,B Whitehouse,H Miyake,J C Yun,H C Fang,T Spreitzer,L Pondrom,S Malde,A Bridgeman,V Khotilovich,D Macqueen,T Miao,W Badgett,J Galyardt,G Compostella,I Shreyber,S Tkaczyk,Y D Oh,J Pursley,T R Junk,B Álvarez González,D Cauz,R Madrak,A Attal,K Makhoul,A Sedov,A T Goshaw,I Suslov,B Carls,C P Marino,J Weinelt,J Yamaoka,F Rimondi,A Bhatti,R Roser,S Amerio,B Di Ruzza,Y Kato,S R Hahn,M E Mattson,G P Yeh,G Piacentino,C Mesropian,G Manca,P Mcintyre,P F Derwent,J Boudreau,T Suzuki,S H Oh,P Catastini,O Norniella,K L Byrum,M Iori,N Pounder,N Ranjan,M Mathis,M Weinberger,G L Strycker,C Dionisi,N Miladinovic,J Proudfoot,N Giokaris,L Pinera,H H Williams,S Tourneur,M Vidal,P Murat,G P Di Giovanni,S Y Jun,S Zucchelli,A B Wicklund,R G Feild,C Calancha,V Rusu,A Zanetti,I Volobouev,B Stelzer,M Herndon,S Hewamanage,K Burkett,F Margaroli,M A Ciocci,Y Zheng,G Gómez ,M Houlden,D W Gerdes ,K Lannon,F Ukegawa,J Königsberg ,D Stuart,D Whiteson,T Yoshida,T Lecompte,N Krumnack,A F Garfinkel,C Marino,R Lander ,W Johnson,M Kreps,R M Harris,A Lath,P Wagner,C Luci,M Paulini,K Maeshima,U Grundler,M Martínez,R D Field ,G A Thompson,S Hou,R Tanaka,R Takashima,C Hill ,X Zhang,S Shalhout ,S Y Tsai ,S C Seidel ,E Rogers,R Rossin,J Nachtman,F Crescioli,P Mastrandrea,J Antos̆ ,V Sorı́n ,F Scuri,J Bellinger,A Barbaro‐Galtieri ,R Mart́ínez-Ballaŕın ,S Giagu,L Ristori,L Oakes,D Pellett ,T Arisawa,M Albrow ,Youhua Yang ,L Scodellaro,J Nielsen,T Shears,S Lammel,J Incandela,J Guimarães Da Costa ,G Chiarelli,Michael Henry Schmitt ,M J Shochet ,R Lysák ,S Tokár ,G Bolla,V Boisvert,J Cuevas,T Dorigo,C Paus,A Warburton,A Paramonov ,P Azzurri,R G Wagner,B Brau,J H Rademacker ,S Bürke ,B L Winer,А Суханов ,Thomas Schwarz ,A Kotwal ,V Cavaliere,R Snihur,S Sarkar,P Renton,C Henderson,A Cerri,A Soha,E Nurse,R Eusebi,L Kirsch,K Yorita,P Maksimović ,P Merkel,K Cho,L Cerrito,G Latino,J Morlock ,M Dell’Orso,E Pianori,D Clark,T Mäki ,Th Müller ,F Chlebana,T Liu,P Dong,W Wagner,J Han ,M K Jha,I Vila,M J Frank,M E Convery,A Sidoti,Y Tu,M Chertok,V Veszprémi ,M Campanelli,P Lujan,A N Sisakyan ,S.‐C Hsu ,A Annovi,S S Yu,I Yu,J Donini,J Freeman ,M S Neubauer,A Martín ,J R Smith,M Gallinaro,H S Lee,S B Kim,K Sato,J P Chou,S M Wang,S Xie,A Savoy-Navarro,B Blumenfeld,J E Garcia,M Goncharov,I K Furic ,V Krutelyov,G Mitselmakher,G Bellettini,X Wu,Y C Chen,Michael L Norman ,A Mehta,P Mehtälä ,S Dubé ,D Carlsmith,B Kilminster,F Würthwein,A Schmidt,T Chwalek,R Miller,T Rodrigo,M Casarsa,I Gorelov,S Richter,A Apresyan,R Hughes ,D Hidas,L Lyons,A Penzo,T Masubuchi,P Wittich,V J Martin ,T Peiffer,F Bedeschi,V E Barnes,O Stelzer-Chilton,I Nakano,D Kar,R Carosi,A Safonov,J Heinrich,K Hara,J Wagner-Kuhr,B Casal,K Österberg ,T Davies,B Jayatilaka,H S Kim,U Husemann,I Redondo,S Leone,A Lister,G Gómez-Ceballos ,A Ivanov,D Hare,H W Kim,A Yagil,T Kamon,S Malik,R Harr ,T Kubo,S M Farrington ,V Glagolev,C Mills,M D’Onofrio,R Moore,J E Kim,P Tipton,A Bocci,P H Beauchemin ,A Taffard,A Clark,S Vallecorsa,V Reković ,B Y Han ,Y K Kim,W-M Yao ,S Wilbur,J Linacre,S Neubauer,S W Lee,D Bortoletto,S Grinstein,E Halkiadakis,D Bisello,J P Fernández ,A Robson,K Terashi,V Giakoumopoulou,M P Giordani ,M Stanitzki,C P Hays ,Y Nagai,F Sforza,K Pitts,J Thom,A Castro,J Strologas,A Höcker ,E Lipeles,M C Kruse ,J S Suh,A Gessler,J Kroll,G Apollinari,K Chung,K Hatakeyama,K Yamamoto,A Korytov,D Hirschbuehl,S H Chang,A Buzatu,M Deninno,S Jindariani,J Heuser,J Russ,C Liu,M A Schmidt,A Sfyrla,A Beretvas,D Benjamin,N Kimura,J Dittmann ,D H Kim,C Blocker,C S Lin,J Adelman,M Vogel,K A Hahn ,M Cavalli‐Sforza ,M Renz,P Giannetti,P Bussey,R Erbacher,S Harper,M Trovato,N Turini,R Wallny

doi:10.1103/physrevd.79.092005

Abstract

We present a measurement of the mass of the top quark using data corresponding to an integrated luminosity of 1.9fb^-1 of ppbar collisions collected at sqrt{s}=1.96 TeV with the CDF II detector at Fermilab's Tevatron. This is the first measurement of the top quark mass using top-antitop pair candidate events in the lepton + jets and dilepton decay channels simultaneously. We reconstruct two observables in each channel and use a non-parametric kernel density estimation technique to derive two-dimensional probability density functions from simulated signal and background samples. The observables are the top quark mass and the invariant mass of two jets from the W decay in the lepton + jets channel, and the top quark mass and the scalar sum of transverse energy of the event in the dilepton channel. We perform a simultaneous fit for the top quark mass and the jet energy scale, which is constrained in situ by the hadronic W boson mass. Using 332 lepton + jets candidate events and 144 dilepton candidate events, we measure the top quark mass to be mtop=171.9 +/- 1.7 (stat. + JES) +/- 1.1 (syst.) GeV/c^2 = 171.9 +/- 2.0 GeV/c^2.

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