Evidence for s-channel single-top-quark production in events with one charged lepton and two jets at CDF.

T Aaltonen,C Neu,S Amerio,M Lancaster,Y Funakoshi,F Ukegawa,W Parker,M Paulini,A Beretvas,A Napier,T Yoshida,A Calamba,R Culbertson,N Ranjan,O Norniella,A Annovi,K Yorita,D Glenzinski,P Garosi,M Corbo,T Kamon,R Vilar,A Mazzacane,H Miyake,M Jones,J Bellinger,D Waters,K Gibson,D Carlsmith,M Vidal,A Bocci,B Carls,Q Liu,L Brigliadori,G Introzzi,J Cuevas,G Latino,G Punzi,A Buzatu,P Renton,M Kurata,T Miao,S Zucchelli,G Giurgiu,J Nachtman,V Thukral,J Thom,H Liu,T Liu,M Datta,K Kondo,K Yamamoto,P Lukens,L Ristori,S Carrillo,A Pranko,D Benjamin,L Ortolan,K Sliwa,K Matera,A Anastassov,C Bromberg,B Auerbach,F Azfar,S Wilbur,A Artikov,S Leo,G Velev,M Deninno,B Di Ruzza,A Mehta,X Wu,D Cauz,A Bodek,M D’Errico,K Burkett,M Vogel,M Franklin,A Aurisano,K Cho,L Santi,C Galloni,P Giromini,A Bhatti,T Tomura,P Maestro,C Grosso-Pilcher,E Gramellini,Y Nagai,A Golossanov,R Carosi,G Lungu,M D’Onofrio,S Grinstein,E Pianori,L Scodellaro,R Forrest,K Takemasa,V Saveliev,V Papadimitriou,C Vernieri,T Harrington-Taber,D Toback,T Wright,S Malik,G Bellettini,D Tonelli,A Semenov,C Clarke,E Lipeles,J Conway,K Hatakeyama,S Jindariani,C Plager,F Happacher,V Glagolev,M Herndon,J Yoh,M Dorigo,G Flanagan,S Rolli,J Pilot,N Kimura,G Volpi,I Nakano,M Mussini,M Shimojima,S Errede,L Oakes,Y Sudo,C Pagliarone,W Ketchum,T Yang,P De Barbaro,S Leone,M Gold,P Butti,R Orava,L Nodulman,I Oksuzian,R Roser,L Cerrito,M Campanelli,R Erbacher,K Yi,J Vizán,F Sforza,K Tollefson,Y Zeng,F Vázquez,M Trovato,H Song,J Kroll,M Hussein,P Mazzanti,R Madrak,D Jang,J Lys,G Busetto,A Clark,T Bae,L Marchese,G Apollinari,C Paus,A Elagin,A Castro,T Kuhr,F Prokoshin,P Totaro,E James,G Manca,M Goncharov,H Gerberich,N Giokaris,I Gorelov,M Cordelli,M Kambeitz,J Strologas,S Donati,F Ruffini,H Frisch,F Devoto,M Bauce,P Wittich,P Lujan,W Badgett,M Chertok,K Goulianos,R Wallny,D Bortoletto,D Amidei,Y Seiya,A Ivanov,E Gerchtein,W Ashmanskas,M Stancari,M Tecchio,J Tang,J Asaadi,A Cerri,K Pitts,A Loginov,V Cavaliere,P Catastini,M Ronzani,C Mesropian,N Moggi,A Limosani,D Yamato,F Scuri,F Rimondi,R St Denis,F Margaroli,G Piacentino,V Rusu,V Giakoumopoulou,A Mitra,B Esham,O González López,S Uozumi,F Canelli,S Torre,C Zhou,Y Sakurai,A Mukherjee,F Bedeschi,T Nigmanov,D Mietlicki,K Sato,D Whiteson,J Heinrich,K Potamianos,T Arisawa,P Wilson,L Demortier,A Boveia,P Marino,Z Hong,J Budagov,D Stentz,E Thomson,S Behari,S Lockwitz,C Vellidis,T Rodriguez,S Camarda,J Lueck,D Torretta,D Cruz,B Kilminster,Y Takeuchi,P Barria,A Kasmi,R Mcnulty,G Pauletta,A Driutti,B Jayatilaka,P Murat,A Robson,G Chiarelli,P Bussey,S Lammel,K Hara,J Huston,M Kreps,D Chokheli,J Russ,S Giagu,A Savoy-Navarro,M Rescigno,P Palni,B Blumenfeld,S Hou,P Schlabach,D Goldin,F Ptohos,N D’Ascenzo,A Ruiz,M Kirby,D Lucchesi,J Boudreau,I Yu,H Wolfe,J Keung,B Casal,I Shreyber-Tecker,U Husemann,Z Wu,J Nett,A Lister,K Ebina,G Chlachidze,L Pondrom,E Palencia,Y Kato,P Wagner,S Wolbers,M Casarsa,M Cremonesi,A Di Canto,M Iori,K Lannon,S Poprocki,M Hare,T Shears,J Naganoma,T Okusawa,A Manousakis-Katsikakis,S Y Noh ,S M Farrington ,И Суслов ,J S Lee ,J R Smith ,S C Seidel ,J S Wilson ,M J Shochet ,A Höcker ,H S Lee ,E E Schmidt ,А Суханов ,J Dittmann ,J Königsberg ,Jonathan L Rosner ,D H Kim ,A Barbaro‐Galtieri ,R D Field ,K R Bland ,U K Yang ,T R Junk ,S R Hahn ,D J Kong ,A T Laasanen ,J A Appel ,S Shalhout ,A Zanetti ,M Cavalli‐Sforza ,C P Hays ,B A Barnett ,S Moêd ,G P Yeh ,A T Goshaw ,Y J Kim ,M E Convery ,J Freeman ,T J Phillips ,M E Mattson ,W H Hopkins ,F D Snider ,H S Budd ,J P Fernández Ramos ,S H Oh ,Thomas Schwarz ,W K Sakumoto ,А Симоненко ,E Brücken ,P E Karchin ,S Tokár ,V Sorı́n ,V E Barnes ,E J Jeon ,Th Müller ,M Martı́nez ,Y D Oh ,C S Moon ,P F Shepard ,M J Kim ,I Redondo ,C M Ginsburg ,W-M Yao ,H H Williams ,R W Moore ,S H Kim ,R Harr ,H S Kim ,C A Cox ,G Gómez ,G Gómez-Ceballos ,M J Morello ,P Mehtälä ,A B Wicklund ,S Y Jun ,R Hughes ,M C Kruse ,J E Kim ,S B Kim ,G B Yu ,A F Garfinkel ,B L Winer ,Yang Yu ,J Guimarães Da Costa ,W C Wester ,J Antos̆ ,A Kotwal ,R Lysák ,J D Lewis ,K K Joo ,J Han ,D J Cox ,R C Edgar ,K J Knoepfel ,S M Wang ,Andrea Di Luca ,P Bartoš ,Y C Chen ,P K Teng ,Y K Kim

doi:10.1103/physrevlett.112.231804

Abstract

We report evidence for s-channel single-top-quark production in proton-antiproton collisions at center-of-mass energy sqrt[s] = 1.96 TeV using a data set that corresponds to an integrated luminosity of 9.4 fb(-1) collected by the Collider Detector at Fermilab. We select events consistent with the s-channel process including two jets and one leptonically decaying W boson. The observed significance is 3.8 standard deviations with respect to the background-only prediction. Assuming a top-quark mass of 172.5 GeV/c(2), we measure the s-channel cross section to be 1.41(-0.42)(+0.44) pb.

Full Text