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Measurement of the $t \bar{t}$ production cross section with an in situ calibration of $b$ -jet identification efficiency

T. Aaltonen²², B. Álvarez González^10,w, S. Amerio^42a, D. Amidei³³, A. Anastassov³⁷, A. Annovi¹⁸, J. Antos¹³, G. Apollinari¹⁶, J. A. Appel¹⁶ et al. (CDF Collaboration)

J. A. Appel¹⁶, A. Apresyan⁴⁷, T. Arisawa⁵⁶, A. Artikov¹⁴, J. Asaadi⁵², W. Ashmanskas¹⁶, B. Auerbach⁵⁹, A. Aurisano⁵², F. Azfar⁴¹, W. Badgett¹⁶, A. Barbaro-Galtieri²⁷, V. E. Barnes⁴⁷, B. A. Barnett²⁴, P. Barria^45c,45a, P. Bartos¹³, M. Bauce^42b,42a, G. Bauer³¹, F. Bedeschi^45a, D. Beecher²⁹, S. Behari²⁴, G. Bellettini^45b,45a, J. Bellinger⁵⁸, D. Benjamin¹⁵, A. Beretvas¹⁶, A. Bhatti⁴⁹, M. Binkley^16,a, D. Bisello^42b,42a, I. Bizjak^29,cc, K. R. Bland⁵, C. Blocker⁷, B. Blumenfeld²⁴, A. Bocci¹⁵, A. Bodek⁴⁸, D. Bortoletto⁴⁷, J. Boudreau⁴⁶, A. Boveia¹², B. Brau^16,b, L. Brigliadori^6b,6a, A. Brisuda¹³, C. Bromberg³⁴, E. Brucken²², M. Bucciantonio^45b,45a, J. Budagov¹⁴, H. S. Budd⁴⁸, S. Budd²³, K. Burkett¹⁶, G. Busetto^42b,42a, P. Bussey²⁰, A. Buzatu³², S. Cabrera^15,y, C. Calancha³⁰, S. Camarda⁶⁰, M. Campanelli³⁴, M. Campbell³³, F. Canelli^12,16, A. Canepa⁴⁴, B. Carls²³, D. Carlsmith⁵⁸, R. Carosi^45a, S. Carrillo^17,l, S. Carron¹⁶, B. Casal¹⁰, M. Casarsa¹⁶, A. Castro^6b,6a, P. Catastini¹⁶, D. Cauz^53a, V. Cavaliere^45a, M. Cavalli-Sforza⁶⁰, A. Cerri^27,g, L. Cerrito^29,r, Y. C. Chen¹, M. Chertok⁸, G. Chiarelli^45a, G. Chlachidze¹⁶, F. Chlebana¹⁶, K. Cho²⁶, D. Chokheli¹⁴, J. P. Chou²¹, W. H. Chung⁵⁸, Y. S. Chung⁴⁸, C. I. Ciobanu⁴³, M. A. Ciocci^45c,45a, A. Clark¹⁹, D. Clark⁷, G. Compostella^42b,42a, M. E. Convery¹⁶, J. Conway⁸, M. Corbo⁴³, M. Cordelli¹⁸, C. A. Cox⁸, D. J. Cox⁸, F. Crescioli^45b,45a, C. Cuenca Almenar⁵⁹, J. Cuevas^10,w, R. Culbertson¹⁶, D. Dagenhart¹⁶, N. d’Ascenzo^43,u, M. Datta¹⁶, P. de Barbaro⁴⁸, S. De Cecco^50a, G. De Lorenzo⁶⁰, M. Dell’Orso^45b,45a, C. Deluca⁶⁰, L. Demortier⁴⁹, J. Deng^15,d, M. Deninno^6a, F. Devoto²², M. d’Errico^42b,42a, A. Di Canto^45b,45a, B. Di Ruzza^45a, J. R. Dittmann⁵, M. D’Onofrio²⁸, S. Donati^45b,45a, P. Dong¹⁶, T. Dorigo^42a, K. Ebina⁵⁶, A. Elagin⁵², A. Eppig³³, R. Erbacher⁸, D. Errede²³, S. Errede²³, N. Ershaidat^43,bb, R. Eusebi⁵², H. C. Fang²⁷, S. Farrington⁴¹, M. Feindt²⁵, J. P. Fernandez³⁰, C. Ferrazza^45d,45a, R. Field¹⁷, G. Flanagan^47,s, R. Forrest⁸, M. J. Frank⁵, M. Franklin²¹, J. C. Freeman¹⁶, I. Furic¹⁷, M. Gallinaro⁴⁹, J. Galyardt¹¹, J. E. Garcia¹⁹, A. F. Garfinkel⁴⁷, P. Garosi^45c,45a, H. Gerberich²³, E. Gerchtein¹⁶, S. Giagu^50b,50a, V. Giakoumopoulou³, P. Giannetti^45a, K. Gibson⁴⁶, C. M. Ginsburg¹⁶, N. Giokaris³, P. Giromini¹⁸, M. Giunta^45a, G. Giurgiu²⁴, V. Glagolev¹⁴, D. Glenzinski¹⁶, M. Gold³⁶, D. Goldin⁵², N. Goldschmidt¹⁷, A. Golossanov¹⁶, G. Gomez¹⁰, G. Gomez-Ceballos³¹, M. Goncharov³¹, O. González³⁰, I. Gorelov³⁶, A. T. Goshaw¹⁵, K. Goulianos⁴⁹, A. Gresele^42a, S. Grinstein⁶⁰, C. Grosso-Pilcher¹², R. C. Group¹⁶, J. Guimaraes da Costa²¹, Z. Gunay-Unalan³⁴, C. Haber²⁷, S. R. Hahn¹⁶, E. Halkiadakis⁵¹, A. Hamaguchi⁴⁰, J. Y. Han⁴⁸, F. Happacher¹⁸, K. Hara⁵⁴, D. Hare⁵¹, M. Hare⁵⁵, R. F. Harr⁵⁷, K. Hatakeyama⁵, C. Hays⁴¹, M. Heck²⁵, J. Heinrich⁴⁴, M. Herndon⁵⁸, S. Hewamanage⁵, D. Hidas⁵¹, A. Hocker¹⁶, W. Hopkins^16,h, D. Horn²⁵, S. Hou¹, R. E. Hughes³⁸, M. Hurwitz¹², U. Husemann⁵⁹, N. Hussain³², M. Hussein³⁴, J. Huston³⁴, G. Introzzi^45a, M. Iori^50b,50a, A. Ivanov^8,p, E. James¹⁶, D. Jang¹¹, B. Jayatilaka¹⁵, E. J. Jeon²⁶, M. K. Jha^6a, S. Jindariani¹⁶, W. Johnson⁸, M. Jones⁴⁷, K. K. Joo²⁶, S. Y. Jun¹¹, T. R. Junk¹⁶, T. Kamon⁵², P. E. Karchin⁵⁷, Y. Kato^40,o, W. Ketchum¹², J. Keung⁴⁴, V. Khotilovich⁵², B. Kilminster¹⁶, D. H. Kim²⁶, H. S. Kim²⁶, H. W. Kim²⁶, J. E. Kim²⁶, M. J. Kim¹⁸, S. B. Kim²⁶, S. H. Kim⁵⁴, Y. K. Kim¹², N. Kimura⁵⁶, S. Klimenko¹⁷, K. Kondo⁵⁶, D. J. Kong²⁶, J. Konigsberg¹⁷, A. Korytov¹⁷, A. V. Kotwal¹⁵, M. Kreps²⁵, J. Kroll⁴⁴, D. Krop¹², N. Krumnack^5,m, M. Kruse¹⁵, V. Krutelyov^52,e, T. Kuhr²⁵, M. Kurata⁵⁴, S. Kwang¹², A. T. Laasanen⁴⁷, S. Lami^45a, S. Lammel¹⁶, M. Lancaster²⁹, R. L. Lander⁸, K. Lannon^38,v, A. Lath⁵¹, G. Latino^45c,45a, I. Lazzizzera^42a, T. LeCompte², E. Lee⁵², H. S. Lee¹², J. S. Lee²⁶, S. W. Lee^52,x, S. Leo^45b,45a, S. Leone^45a, J. D. Lewis¹⁶, C.-J. Lin²⁷, J. Linacre⁴¹, M. Lindgren¹⁶, E. Lipeles⁴⁴, A. Lister¹⁹, D. O. Litvintsev¹⁶, C. Liu⁴⁶, Q. Liu⁴⁷, T. Liu¹⁶, S. Lockwitz⁵⁹, N. S. Lockyer⁴⁴, A. Loginov⁵⁹, D. Lucchesi^42b,42a, J. Lueck²⁵, P. Lujan²⁷, P. Lukens¹⁶, G. Lungu⁴⁹, J. Lys²⁷, R. Lysak¹³, R. Madrak¹⁶, K. Maeshima¹⁶, K. Makhoul³¹, P. Maksimovic²⁴, S. Malik⁴⁹, G. Manca^28,c, A. Manousakis-Katsikakis³, F. Margaroli⁴⁷, C. Marino²⁵, M. Martínez⁶⁰, R. Martínez-Ballarín³⁰, P. Mastrandrea^50a, M. Mathis²⁴, M. E. Mattson⁵⁷, P. Mazzanti^6a, K. S. McFarland⁴⁸, P. McIntyre⁵², R. McNulty^28,j, A. Mehta²⁸, P. Mehtala²², A. Menzione^45a, C. Mesropian⁴⁹, T. Miao¹⁶, D. Mietlicki³³, A. Mitra¹, G. Mitselmakher¹⁷, H. Miyake⁵⁴, S. Moed²¹, N. Moggi^6a, M. N. Mondragon^16,l, C. S. Moon²⁶, R. Moore¹⁶, M. J. Morello¹⁶, J. Morlock²⁵, P. Movilla Fernandez¹⁶, A. Mukherjee¹⁶, Th. Muller²⁵, P. Murat¹⁶, M. Mussini^6b,6a, J. Nachtman^16,n, Y. Nagai⁵⁴, J. Naganoma⁵⁶, I. Nakano³⁹, A. Napier⁵⁵, J. Nett⁵⁸, C. Neu^44,aa, M. S. Neubauer²³, J. Nielsen^27,f, L. Nodulman², O. Norniella²³, E. Nurse²⁹, L. Oakes⁴¹, S. H. Oh¹⁵, Y. D. Oh²⁶, I. Oksuzian¹⁷, T. Okusawa⁴⁰, R. Orava²², L. Ortolan⁶⁰, S. Pagan Griso^42b,42a, C. Pagliarone^53a, E. Palencia^10,g, V. Papadimitriou¹⁶, A. A. Paramonov², J. Patrick¹⁶, G. Pauletta^53b,53a, M. Paulini¹¹, C. Paus³¹, D. E. Pellett⁸, A. Penzo^53a, T. J. Phillips¹⁵, G. Piacentino^45a, E. Pianori⁴⁴, J. Pilot³⁸, K. Pitts²³, C. Plager⁹, L. Pondrom⁵⁸, K. Potamianos⁴⁷, O. Poukhov^14,a, F. Prokoshin^14,z, A. Pronko¹⁶, F. Ptohos^18,i, E. Pueschel¹¹, G. Punzi^45b,45a, J. Pursley⁵⁸, A. Rahaman⁴⁶, V. Ramakrishnan⁵⁸, N. Ranjan⁴⁷, I. Redondo³⁰, P. Renton⁴¹, M. Rescigno^50a, F. Rimondi^6b,6a, L. Ristori^45a,16, A. Robson²⁰, T. Rodrigo¹⁰, T. Rodriguez⁴⁴, E. Rogers²³, S. Rolli⁵⁵, R. Roser¹⁶, M. Rossi^53a, F. Ruffini^45c,45a, A. Ruiz¹⁰, J. Russ¹¹, V. Rusu¹⁶, A. Safonov⁵², W. K. Sakumoto⁴⁸, L. Santi^53b,53a, L. Sartori^45a, K. Sato⁵⁴, V. Saveliev^43,u, A. Savoy-Navarro⁴³, P. Schlabach¹⁶, A. Schmidt²⁵, E. E. Schmidt¹⁶, M. P. Schmidt^59,a, M. Schmitt³⁷, T. Schwarz⁸, L. Scodellaro¹⁰, A. Scribano^45c,45a, F. Scuri^45a, A. Sedov⁴⁷, S. Seidel³⁶, Y. Seiya⁴⁰, A. Semenov¹⁴, F. Sforza^45b,45a, A. Sfyrla²³, S. Z. Shalhout⁸, T. Shears²⁸, P. F. Shepard⁴⁶, M. Shimojima^54,t, S. Shiraishi¹², M. Shochet¹², I. Shreyber³⁵, A. Simonenko¹⁴, P. Sinervo³², A. Sissakian^14,a, K. Sliwa⁵⁵, J. R. Smith⁸, F. D. Snider¹⁶, A. Soha¹⁶, S. Somalwar⁵¹, V. Sorin⁶⁰, P. Squillacioti¹⁶, M. Stanitzki⁵⁹, R. St. Denis²⁰, B. Stelzer³², O. Stelzer-Chilton³², D. Stentz³⁷, J. Strologas³⁶, G. L. Strycker³³, Y. Sudo⁵⁴, A. Sukhanov¹⁷, I. Suslov¹⁴, K. Takemasa⁵⁴, Y. Takeuchi⁵⁴, J. Tang¹², M. Tecchio³³, P. K. Teng¹, J. Thom^16,h, J. Thome¹¹, G. A. Thompson²³, E. Thomson⁴⁴, P. Ttito-Guzmán³⁰, S. Tkaczyk¹⁶, D. Toback⁵², S. Tokar¹³, K. Tollefson³⁴, T. Tomura⁵⁴, D. Tonelli¹⁶, S. Torre¹⁸, D. Torretta¹⁶, P. Totaro^53b,53a, M. Trovato^45d,45a, Y. Tu⁴⁴, N. Turini^45c,45a, F. Ukegawa⁵⁴, S. Uozumi²⁶, A. Varganov³³, E. Vataga^45d,45a, F. Vázquez^17,l, G. Velev¹⁶, C. Vellidis³, M. Vidal³⁰, I. Vila¹⁰, R. Vilar¹⁰, M. Vogel³⁶, G. Volpi^45b,45a, P. Wagner⁴⁴, R. L. Wagner¹⁶, T. Wakisaka⁴⁰, R. Wallny⁹, S. M. Wang¹, A. Warburton³², D. Waters²⁹, M. Weinberger⁵², W. C. Wester, III¹⁶, B. Whitehouse⁵⁵, D. Whiteson^44,d, A. B. Wicklund², E. Wicklund¹⁶, S. Wilbur¹², F. Wick²⁵, H. H. Williams⁴⁴, J. S. Wilson³⁸, P. Wilson¹⁶, B. L. Winer³⁸, P. Wittich^16,h, S. Wolbers¹⁶, H. Wolfe³⁸, T. Wright³³, X. Wu¹⁹, Z. Wu⁵, K. Yamamoto⁴⁰, J. Yamaoka¹⁵, U. K. Yang^12,q, Y. C. Yang²⁶, W.-M. Yao²⁷, G. P. Yeh¹⁶, K. Yi^16,n, J. Yoh¹⁶, K. Yorita⁵⁶, T. Yoshida^40,k, G. B. Yu¹⁵, I. Yu²⁶, S. S. Yu¹⁶, J. C. Yun¹⁶, A. Zanetti^53a, Y. Zeng¹⁵, 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, ICREA, 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
¹⁰Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain
¹¹Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
¹²Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
¹³Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia
¹⁴Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
¹⁵Duke University, Durham, North Carolina 27708, USA
¹⁶Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
¹⁷University of Florida, Gainesville, Florida 32611, USA
¹⁸Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
¹⁹University of Geneva, CH-1211 Geneva 4, Switzerland
²⁰Glasgow University, Glasgow G12 8QQ, United Kingdom
²¹Harvard University, Cambridge, Massachusetts 02138, USA
²²Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland
²³University of Illinois, Urbana, Illinois 61801, USA
²⁴The Johns Hopkins University, Baltimore, Maryland 21218, USA
²⁵Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany
²⁶Center 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; Chonbuk National University, Jeonju 561-756, Korea
²⁷Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
²⁸University of Liverpool, Liverpool L69 7ZE, United Kingdom
²⁹University College London, London WC1E 6BT, United Kingdom
³⁰Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain
³¹Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
³²Institute 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
³³University of Michigan, Ann Arbor, Michigan 48109, USA
³⁴Michigan State University, East Lansing, Michigan 48824, USA
³⁵Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia
³⁶University of New Mexico, Albuquerque, New Mexico 87131, USA
³⁷Northwestern University, Evanston, Illinois 60208, USA
³⁸The Ohio State University, Columbus, Ohio 43210, USA
³⁹Okayama University, Okayama 700-8530, Japan
⁴⁰Osaka City University, Osaka 588, Japan
⁴¹University of Oxford, Oxford OX1 3RH, United Kingdom
^42aIstituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy
^42bUniversity of Padova, I-35131 Padova, Italy
⁴³LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France
⁴⁴University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
^45aIstituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy
^45bUniversity of Pisa, I-56127 Pisa, Italy
^45cUniversity of Siena, I-56127 Pisa, Italy
^45dScuola Normale Superiore, I-56127 Pisa, Italy
⁴⁶University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
⁴⁷Purdue University, West Lafayette, Indiana 47907, USA
⁴⁸University of Rochester, Rochester, New York 14627, USA
⁴⁹The Rockefeller University, New York, New York 10065, USA
^50aIstituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy
^50bSapienza Università di Roma, I-00185 Roma, Italy
⁵¹Rutgers University, Piscataway, New Jersey 08855, USA
⁵²Texas A University, College Station, Texas 77843, USA
^53aIstituto Nazionale di Fisica Nucleare Trieste/Udine, I-34100 Trieste, I-33100 Udine, Italy
^53bUniversity of Trieste/Udine, I-33100 Udine, Italy
⁵⁴University of Tsukuba, Tsukuba, Ibaraki 305, Japan
⁵⁵Tufts University, Medford, Massachusetts 02155, USA
⁵⁶Waseda University, Tokyo 169, Japan
⁵⁷Wayne State University, Detroit, Michigan 48201, USA
⁵⁸University of Wisconsin, Madison, Wisconsin 53706, USA
⁵⁹Yale University, New Haven, Connecticut 06520, USA
⁶⁰Institut de Fisica d’Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain

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Phys. Rev. D 83, 071102(R) – Published 13 April, 2011

DOI: https://doi.org/10.1103/PhysRevD.83.071102

Abstract

A measurement of the top-quark pair-production cross section in $p \bar{p}$ collisions at $\sqrt{s} = 1.96 TeV$ using data corresponding to an integrated luminosity of $1.12 {fb}^{- 1}$ collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states $e ν +$ jets and $μ ν +$ jets are selected, and the cross section and the $b$ -jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified $b$ quarks from the top-quark decays. Assuming a top-quark mass of $175 GeV / c^{2}$ , a cross section of $8.5 \pm 0.6 (stat) \pm 0.7 (syst) pb$ is measured.

Article Text

References (23)

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Physical Review D

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Measurement of the $t \bar{t}$ production cross section with an in situ calibration of $b$ -jet identification efficiency

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Measurement of the tt¯ production cross section with an in situ calibration of b-jet identification efficiency

Abstract

Article Text

References (23)

Measurement of the $t \bar{t}$ production cross section with an in situ calibration of $b$ -jet identification efficiency