Search for the Production of Narrow tb̅ Resonances in 1.9  fb^-1 of pp̅ Collisions at √s=1.96  TeV

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T. Aaltonen²⁴, J. Adelman¹⁴, T. Akimoto⁵⁵, B. Álvarez González^12,n, S. Amerio^43b,43a, D. Amidei³⁴, A. Anastassov³⁸, A. Annovi²⁰, J. Antos¹⁵, G. Apollinari¹⁸, A. Apresyan⁴⁸, T. Arisawa⁵⁷, A. Artikov¹⁶, W. Ashmanskas¹⁸, A. Attal⁴, A. Aurisano⁵³, F. Azfar⁴², W. Badgett¹⁸, A. Barbaro-Galtieri²⁸, V. E. Barnes⁴⁸, B. A. Barnett²⁶, P. Barria^46c,46a, P. Bartos¹⁵, V. Bartsch³⁰, G. Bauer³², P.-H. Beauchemin³³, F. Bedeschi^46a, D. Beecher³⁰, S. Behari²⁶, G. Bellettini^46b,46a, J. Bellinger⁵⁹, D. Benjamin¹⁷, A. Beretvas¹⁸, J. Beringer²⁸, A. Bhatti⁵⁰, M. Binkley¹⁸, D. Bisello^43b,43a, I. Bizjak^30,s, R. E. Blair², C. Blocker⁷, B. Blumenfeld²⁶, A. Bocci¹⁷, A. Bodek⁴⁹, V. Boisvert⁴⁹, G. Bolla⁴⁸, D. Bortoletto⁴⁸, J. Boudreau⁴⁷, A. Boveia¹¹, B. Brau^11,†, A. Bridgeman²⁵, L. Brigliadori^6b,6a, C. Bromberg³⁵, E. Brubaker¹⁴, J. Budagov¹⁶, H. S. Budd⁴⁹, S. Budd²⁵, S. Burke¹⁸, K. Burkett¹⁸, G. Busetto^43b,43a, P. Bussey²², A. Buzatu³³, K. L. Byrum², S. Cabrera^17,p, C. Calancha³¹, M. Campanelli³⁵, M. Campbell³⁴, F. Canelli^14,18, A. Canepa⁴⁵, B. Carls²⁵, D. Carlsmith⁵⁹, R. Carosi^46a, S. Carrillo^19,h, S. Carron³³, B. Casal¹², M. Casarsa¹⁸, A. Castro^6b,6a, P. Catastini^46c,46a, D. Cauz^54b,54a, V. Cavaliere^46c,46a, M. Cavalli-Sforza⁴, A. Cerri²⁸, L. Cerrito^30,j, S. H. Chang⁶¹, Y. C. Chen¹, M. Chertok⁸, G. Chiarelli^46a, G. Chlachidze¹⁸, F. Chlebana¹⁸, K. Cho⁶¹, D. Chokheli¹⁶, J. P. Chou²³, G. Choudalakis³², S. H. Chuang⁵², K. Chung^18,i, W. H. Chung⁵⁹, Y. S. Chung⁴⁹, T. Chwalek²⁷, C. I. Ciobanu⁴⁴, M. A. Ciocci^46c,46a, A. Clark²¹, D. Clark⁷, G. Compostella^43a, M. E. Convery¹⁸, J. Conway⁸, M. Cordelli²⁰, G. Cortiana^43b,43a, C. A. Cox⁸, D. J. Cox⁸, F. Crescioli^46b,46a, C. Cuenca Almenar^8,p, J. Cuevas^12,n, R. Culbertson¹⁸, J. C. Cully³⁴, D. Dagenhart¹⁸, M. Datta¹⁸, T. Davies²², P. de Barbaro⁴⁹, S. De Cecco^51a, A. Deisher²⁸, G. De Lorenzo⁴, M. Dell’Orso^46b,46a, C. Deluca⁴, L. Demortier⁵⁰, J. Deng¹⁷, M. Deninno^6a, P. F. Derwent¹⁸, A. Di Canto^46b,46a, G. P. di Giovanni⁴⁴, C. Dionisi^51b,51a, B. Di Ruzza^54b,54a, J. R. Dittmann⁵, M. D’Onofrio⁴, S. Donati^46b,46a, P. Dong⁹, J. Donini^43a, T. Dorigo^43a, S. Dube⁵², J. Efron³⁹, A. Elagin⁵³, R. Erbacher⁸, D. Errede²⁵, S. Errede²⁵, R. Eusebi¹⁸, H. C. Fang²⁸, S. Farrington⁴², W. T. Fedorko¹⁴, R. G. Feild⁶⁰, M. Feindt²⁷, J. P. Fernandez³¹, C. Ferrazza^46d,46a, R. Field¹⁹, G. Flanagan⁴⁸, R. Forrest⁸, M. J. Frank⁵, M. Franklin²³, J. C. Freeman¹⁸, I. Furic¹⁹, M. Gallinaro^51a, J. Galyardt¹³, F. Garberson¹¹, J. E. Garcia²¹, A. F. Garfinkel⁴⁸, P. Garosi^46c,46a, K. Genser¹⁸, H. Gerberich²⁵, D. Gerdes³⁴, A. Gessler²⁷, S. Giagu^51b,51a, V. Giakoumopoulou³, P. Giannetti^46a, K. Gibson⁴⁷, J. L. Gimmell⁴⁹, C. M. Ginsburg¹⁸, N. Giokaris³, M. Giordani^54b,54a, P. Giromini²⁰, M. Giunta^46a, G. Giurgiu²⁶, V. Glagolev¹⁶, D. Glenzinski¹⁸, M. Gold³⁷, N. Goldschmidt¹⁹, A. Golossanov¹⁸, G. Gomez¹², G. Gomez-Ceballos³², M. Goncharov³², O. González³¹, I. Gorelov³⁷, A. T. Goshaw¹⁷, K. Goulianos⁵⁰, A. Gresele^43b,43a, S. Grinstein²³, C. Grosso-Pilcher¹⁴, R. C. Group¹⁸, U. Grundler²⁵, J. Guimaraes da Costa²³, Z. Gunay-Unalan³⁵, C. Haber²⁸, K. Hahn³², S. R. Hahn¹⁸, E. Halkiadakis⁵², B.-Y. Han⁴⁹, J. Y. Han⁴⁹, F. Happacher²⁰, K. Hara⁵⁵, D. Hare⁵², M. Hare⁵⁶, S. Harper⁴², R. F. Harr⁵⁸, R. M. Harris¹⁸, M. Hartz⁴⁷, K. Hatakeyama⁵⁰, C. Hays⁴², M. Heck²⁷, A. Heijboer⁴⁵, J. Heinrich⁴⁵, C. Henderson³², M. Herndon⁵⁹, J. Heuser²⁷, S. Hewamanage⁵, D. Hidas¹⁷, C. S. Hill^11,§, D. Hirschbuehl²⁷, A. Hocker¹⁸, S. Hou¹, M. Houlden²⁹, S.-C. Hsu²⁸, B. T. Huffman⁴², R. E. Hughes³⁹, U. Husemann⁶⁰, M. Hussein³⁵, J. Huston³⁵, J. Incandela¹¹, G. Introzzi^46a, M. Iori^51b,51a, A. Ivanov⁸, E. James¹⁸, D. Jang¹³, B. Jayatilaka¹⁷, E. J. Jeon⁶¹, M. K. Jha^6a, S. Jindariani¹⁸, W. Johnson⁸, M. Jones⁴⁸, K. K. Joo⁶¹, S. Y. Jun¹³, J. E. Jung⁶¹, T. R. Junk¹⁸, T. Kamon⁵³, D. Kar¹⁹, P. E. Karchin⁵⁸, Y. Kato^41,g, R. Kephart¹⁸, W. Ketchum¹⁴, J. Keung⁴⁵, V. Khotilovich⁵³, B. Kilminster¹⁸, D. H. Kim⁶¹, H. S. Kim⁶¹, H. W. Kim⁶¹, J. E. Kim⁶¹, M. J. Kim²⁰, S. B. Kim⁶¹, S. H. Kim⁵⁵, Y. K. Kim¹⁴, N. Kimura⁵⁵, L. Kirsch⁷, S. Klimenko¹⁹, B. Knuteson³², B. R. Ko¹⁷, K. Kondo⁵⁷, D. J. Kong⁶¹, J. Konigsberg¹⁹, A. Korytov¹⁹, A. V. Kotwal¹⁷, M. Kreps²⁷, J. Kroll⁴⁵, D. Krop¹⁴, N. Krumnack⁵, M. Kruse¹⁷, V. Krutelyov¹¹, T. Kubo⁵⁵, T. Kuhr²⁷, N. P. Kulkarni⁵⁸, M. Kurata⁵⁵, S. Kwang¹⁴, A. T. Laasanen⁴⁸, S. Lami^46a, S. Lammel¹⁸, M. Lancaster³⁰, R. L. Lander⁸, K. Lannon^39,m, A. Lath⁵², G. Latino^46c,46a, I. Lazzizzera^43b,43a, T. LeCompte², E. Lee⁵³, H. S. Lee¹⁴, S. W. Lee^53,o, S. Leone^46a, J. D. Lewis¹⁸, C.-S. Lin²⁸, J. Linacre⁴², M. Lindgren¹⁸, E. Lipeles⁴⁵, A. Lister⁸, D. O. Litvintsev¹⁸, C. Liu⁴⁷, T. Liu¹⁸, N. S. Lockyer⁴⁵, A. Loginov⁶⁰, M. Loreti^43b,43a, L. Lovas¹⁵, D. Lucchesi^43b,43a, C. Luci^51b,51a, J. Lueck²⁷, P. Lujan²⁸, P. Lukens¹⁸, G. Lungu⁵⁰, L. Lyons⁴², J. Lys²⁸, R. Lysak¹⁵, D. MacQueen³³, R. Madrak¹⁸, K. Maeshima¹⁸, K. Makhoul³², T. Maki²⁴, P. Maksimovic²⁶, S. Malde⁴², S. Malik³⁰, G. Manca^29,††, A. Manousakis-Katsikakis³, F. Margaroli⁴⁸, C. Marino²⁷, C. P. Marino²⁵, A. Martin⁶⁰, V. Martin^22,e, M. Martínez⁴, R. Martínez-Ballarín³¹, T. Maruyama⁵⁵, P. Mastrandrea^51a, T. Masubuchi⁵⁵, M. Mathis²⁶, M. E. Mattson⁵⁸, P. Mazzanti^6a, K. S. McFarland⁴⁹, P. McIntyre⁵³, R. McNulty^29,d, A. Mehta²⁹, P. Mehtala²⁴, A. Menzione^46a, P. Merkel⁴⁸, C. Mesropian⁵⁰, T. Miao¹⁸, N. Miladinovic⁷, R. Miller³⁵, C. Mills²³, M. Milnik²⁷, A. Mitra¹, G. Mitselmakher¹⁹, H. Miyake⁵⁵, N. Moggi^6a, M. N. Mondragon^18,h, C. S. Moon⁶¹, R. Moore¹⁸, M. J. Morello^46a, J. Morlock²⁷, P. Movilla Fernandez¹⁸, J. Mülmenstädt²⁸, A. Mukherjee¹⁸, Th. Muller²⁷, R. Mumford²⁶, P. Murat¹⁸, M. Mussini^6b,6a, J. Nachtman^18,i, Y. Nagai⁵⁵, A. Nagano⁵⁵, J. Naganoma⁵⁵, K. Nakamura⁵⁵, I. Nakano⁴⁰, A. Napier⁵⁶, V. Necula¹⁷, J. Nett⁵⁹, C. Neu^45,q, M. S. Neubauer²⁵, S. Neubauer²⁷, J. Nielsen^28,a, L. Nodulman², M. Norman¹⁰, O. Norniella²⁵, E. Nurse³⁰, L. Oakes⁴², S. H. Oh¹⁷, Y. D. Oh⁶¹, I. Oksuzian¹⁹, T. Okusawa⁴¹, R. Orava²⁴, K. Osterberg²⁴, S. Pagan Griso^43b,43a, C. Pagliarone^54a, E. Palencia¹⁸, V. Papadimitriou¹⁸, A. Papaikonomou²⁷, A. A. Paramonov¹⁴, B. Parks³⁹, S. Pashapour³³, J. Patrick¹⁸, G. Pauletta^54b,54a, M. Paulini¹³, C. Paus³², T. Peiffer²⁷, D. E. Pellett⁸, A. Penzo^54a, T. J. Phillips¹⁷, G. Piacentino^46a, E. Pianori⁴⁵, L. Pinera¹⁹, K. Pitts²⁵, C. Plager⁹, L. Pondrom⁵⁹, O. Poukhov^16,*, N. Pounder⁴², F. Prakoshyn¹⁶, A. Pronko¹⁸, J. Proudfoot², F. Ptohos^18,c, E. Pueschel¹³, G. Punzi^46b,46a, J. Pursley⁵⁹, J. Rademacker^42,§, A. Rahaman⁴⁷, V. Ramakrishnan⁵⁹, N. Ranjan⁴⁸, I. Redondo³¹, P. Renton⁴², M. Renz²⁷, M. Rescigno^51a, S. Richter²⁷, F. Rimondi^6b,6a, L. Ristori^46a, A. Robson²², T. Rodrigo¹², T. Rodriguez⁴⁵, E. Rogers²⁵, S. Rolli⁵⁶, R. Roser¹⁸, M. Rossi^54a, R. Rossin¹¹, P. Roy³³, A. Ruiz¹², J. Russ¹³, V. Rusu¹⁸, B. Rutherford¹⁸, H. Saarikko²⁴, A. Safonov⁵³, W. K. Sakumoto⁴⁹, O. Saltó⁴, L. Santi^54b,54a, S. Sarkar^51b,51a, L. Sartori^46a, K. Sato¹⁸, A. Savoy-Navarro⁴⁴, P. Schlabach¹⁸, A. Schmidt²⁷, E. E. Schmidt¹⁸, M. A. Schmidt¹⁴, M. P. Schmidt^60,*, M. Schmitt³⁸, T. Schwarz⁸, L. Scodellaro¹², A. Scribano^46c,46a, F. Scuri^46a, A. Sedov⁴⁸, S. Seidel³⁷, Y. Seiya⁴¹, A. Semenov¹⁶, L. Sexton-Kennedy¹⁸, F. Sforza^46b,46a, A. Sfyrla²⁵, S. Z. Shalhout⁵⁸, T. Shears²⁹, P. F. Shepard⁴⁷, M. Shimojima^55,l, S. Shiraishi¹⁴, M. Shochet¹⁴, Y. Shon⁵⁹, I. Shreyber³⁶, P. Sinervo³³, A. Sisakyan¹⁶, A. J. Slaughter¹⁸, J. Slaunwhite³⁹, K. Sliwa⁵⁶, J. R. Smith⁸, F. D. Snider¹⁸, R. Snihur³³, A. Soha⁸, S. Somalwar⁵², V. Sorin³⁵, T. Spreitzer³³, P. Squillacioti^46c,46a, M. Stanitzki⁶⁰, R. St. Denis²², B. Stelzer³³, O. Stelzer-Chilton³³, D. Stentz³⁸, J. Strologas³⁷, G. L. Strycker³⁴, J. S. Suh⁶¹, A. Sukhanov¹⁹, I. Suslov¹⁶, T. Suzuki⁵⁵, A. Taffard^25,‡‡, R. Takashima⁴⁰, Y. Takeuchi⁵⁵, R. Tanaka⁴⁰, M. Tecchio³⁴, P. K. Teng¹, K. Terashi⁵⁰, J. Thom^18,b, A. S. Thompson²², G. A. Thompson²⁵, E. Thomson⁴⁵, P. Tipton⁶⁰, P. Ttito-Guzmán³¹, S. Tkaczyk¹⁸, D. Toback⁵³, S. Tokar¹⁵, K. Tollefson³⁵, T. Tomura⁵⁵, D. Tonelli¹⁸, S. Torre²⁰, D. Torretta¹⁸, P. Totaro^54b,54a, S. Tourneur⁴⁴, M. Trovato^46d,46a, S.-Y. Tsai¹, Y. Tu⁴⁵, N. Turini^46c,46a, F. Ukegawa⁵⁵, S. Vallecorsa²¹, N. van Remortel^24,‡, A. Varganov³⁴, E. Vataga^46d,46a, F. Vázquez^19,h, G. Velev¹⁸, C. Vellidis³, M. Vidal³¹, R. Vidal¹⁸, I. Vila¹², R. Vilar¹², T. Vine³⁰, M. Vogel³⁷, I. Volobouev^28,o, G. Volpi^46b,46a, P. Wagner⁴⁵, R. G. Wagner², R. L. Wagner¹⁸, W. Wagner^27,r, J. Wagner-Kuhr²⁷, T. Wakisaka⁴¹, R. Wallny⁹, S. M. Wang¹, A. Warburton³³, D. Waters³⁰, M. Weinberger⁵³, J. Weinelt²⁷, W. C. Wester, III¹⁸, B. Whitehouse⁵⁶, D. Whiteson^45,‡‡, A. B. Wicklund², E. Wicklund¹⁸, S. Wilbur¹⁴, G. Williams³³, H. H. Williams⁴⁵, P. Wilson¹⁸, B. L. Winer³⁹, P. Wittich^18,b, S. Wolbers¹⁸, C. Wolfe¹⁴, T. Wright³⁴, X. Wu²¹, F. Würthwein¹⁰, S. Xie³², A. Yagil¹⁰, K. Yamamoto⁴¹, J. Yamaoka¹⁷, U. K. Yang^14,k, Y. C. Yang⁶¹, W. M. Yao²⁸, G. P. Yeh¹⁸, K. Yi^18,i, J. Yoh¹⁸, K. Yorita⁵⁷, T. Yoshida^41,f, G. B. Yu⁴⁹, I. Yu⁶¹, S. S. Yu¹⁸, J. C. Yun¹⁸, L. Zanello^51b,51a, A. Zanetti^54a, X. Zhang²⁵, Y. Zheng^9,**, and S. Zucchelli^6b,6a (CDF Collaboration)
¹Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China
²Argonne National Laboratory, Argonne, Illinois 60439, USA
³University of Athens, 157 71 Athens, Greece
⁴Institut de Fisica d’Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain
⁵Baylor University, Waco, Texas 76798, USA
^6aIstituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy
^6bUniversity of Bologna, I-40127 Bologna, Italy
⁷Brandeis University, Waltham, Massachusetts 02254, USA
⁸University of California, Davis, Davis, California 95616, USA
⁹University of California, Los Angeles, Los Angeles, California 90024, USA
¹⁰University of California, San Diego, La Jolla, California 92093, USA
¹¹University of California, Santa Barbara, Santa Barbara, California 93106, USA
¹²Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain
¹³Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
¹⁴Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
¹⁵Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia
¹⁶Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
¹⁷Duke University, Durham, North Carolina 27708, USA
¹⁸Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
¹⁹University of Florida, Gainesville, Florida 32611, USA
²⁰Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
²¹University of Geneva, CH-1211 Geneva 4, Switzerland
²²Glasgow University, Glasgow G12 8QQ, United Kingdom
²³Harvard University, Cambridge, Massachusetts 02138, USA
²⁴Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland
²⁵University of Illinois, Urbana, Illinois 61801, USA
²⁶The Johns Hopkins University, Baltimore, Maryland 21218, USA
²⁷Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany
²⁸Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
²⁹University of Liverpool, Liverpool L69 7ZE, United Kingdom
³⁰University College London, London WC1E 6BT, United Kingdom
³¹Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain
³²Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
³³Institute of Particle Physics: McGill University, Montréal, Québec, Canada H3A 2T8; Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6; University of Toronto, Toronto, Ontario, Canada M5S 1A7; and TRIUMF, Vancouver, British Columbia, Canada V6T 2A3
³⁴University of Michigan, Ann Arbor, Michigan 48109, USA
³⁵Michigan State University, East Lansing, Michigan 48824, USA
³⁶Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia
³⁷University of New Mexico, Albuquerque, New Mexico 87131, USA
³⁸Northwestern University, Evanston, Illinois 60208, USA
³⁹The Ohio State University, Columbus, Ohio 43210, USA
⁴⁰Okayama University, Okayama 700-8530, Japan
⁴¹Osaka City University, Osaka 588, Japan
⁴²University of Oxford, Oxford OX1 3RH, United Kingdom
^43aIstituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy
^43bUniversity of Padova, I-35131 Padova, Italy
⁴⁴LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France
⁴⁵University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
^46aIstituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy
^46bUniversity of Pisa, I-56127 Pisa, Italy
^46cUniversity of Siena, I-56127 Pisa, Italy
^46dScuola Normale Superiore, I-56127 Pisa, Italy
⁴⁷University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
⁴⁸Purdue University, West Lafayette, Indiana 47907, USA
⁴⁹University of Rochester, Rochester, New York 14627, USA
⁵⁰The Rockefeller University, New York, New York 10021, USA
^51aIstituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy
^51bSapienza Università di Roma, I-00185 Roma, Italy
⁵²Rutgers University, Piscataway, New Jersey 08855, USA
⁵³Texas A&M University, College Station, Texas 77843, USA
^54aIstituto Nazionale di Fisica Nucleare Trieste/Udine, I-34100 Trieste, Italy
^54bUniversity of Trieste/Udine, I-33100 Udine, Italy
⁵⁵University of Tsukuba, Tsukuba, Ibaraki 305, Japan
⁵⁶Tufts University, Medford, Massachusetts 02155, USA
⁵⁷Waseda University, Tokyo 169, Japan
⁵⁸Wayne State University, Detroit, Michigan 48201, USA
⁵⁹University of Wisconsin, Madison, Wisconsin 53706, USA
⁶⁰Yale University, New Haven, Connecticut 06520, USA
⁶¹Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon, 305-806, Korea; Chonnam National University, Gwangju, 500-757, Korea

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