Measurement of the Ratioσtt¯/σZ/γ*→lland Precise Extraction of thett¯Cross Section

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

doi:10.1103/physrevlett.105.012001

Abstract

We report a measurement of the ratio of the tt to Z/γ{*} production cross sections in sqrt[s]=1.96 TeV pp collisions using data corresponding to an integrated luminosity of up to 4.6 fb{-1}, collected by the CDF II detector. The tt cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/γ{*}→ll cross section predicted by the standard model, the extracted tt cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result σ{tt}=7.70±0.52 pb, for a top-quark mass of 172.5 GeV/c{2}.

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