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    Measurement of ZZ Production in Leptonic Final States at s of 1.96 TeV at CDF

    T. Aaltonen21, B. Álvarez González9,z, S. Amerio40a, D. Amidei32, A. Anastassov15,x, A. Annovi17, J. Antos12, G. Apollinari15, J. A. Appel15 et al. (CDF Collaboration)

    J. A. Appel15, T. Arisawa54, A. Artikov13, J. Asaadi49, W. Ashmanskas15, B. Auerbach57, A. Aurisano49, F. Azfar39, W. Badgett15, T. Bae25, A. Barbaro-Galtieri26, V. E. Barnes44, B. A. Barnett23, P. Barria42c,42a, P. Bartos12, M. Bauce40b,40a, F. Bedeschi42a, S. Behari23, G. Bellettini42b,42a, J. Bellinger56, D. Benjamin14, A. Beretvas15, A. Bhatti46, D. Bisello40b,40a, I. Bizjak28, K. R. Bland5, B. Blumenfeld23, A. Bocci14, A. Bodek45, D. Bortoletto44, J. Boudreau43, A. Boveia11, L. Brigliadori6b,6a, C. Bromberg33, E. Brucken21, J. Budagov13, H. S. Budd45, K. Burkett15, G. Busetto40b,40a, P. Bussey19, A. Buzatu31, A. Calamba10, C. Calancha29, S. Camarda4, M. Campanelli28, M. Campbell32, F. Canelli11,15, B. Carls22, D. Carlsmith56, R. Carosi42a, S. Carrillo16,n, S. Carron15, B. Casal9,l, M. Casarsa50a, A. Castro6b,6a, P. Catastini20, D. Cauz50a, V. Cavaliere22, M. Cavalli-Sforza4, A. Cerri26,g, L. Cerrito28,s, Y. C. Chen1, M. Chertok7, G. Chiarelli42a, G. Chlachidze15, F. Chlebana15, K. Cho25, D. Chokheli13, W. H. Chung56, Y. S. Chung45, M. A. Ciocci42c,42a, A. Clark18, C. Clarke55, G. Compostella40b,40a, M. E. Convery15, J. Conway7, M. Corbo15, M. Cordelli17, C. A. Cox7, D. J. Cox7, F. Crescioli42b,42a, J. Cuevas9,z, R. Culbertson15, D. Dagenhart15, N. d’Ascenzo15,w, M. Datta15, P. de Barbaro45, M. Dell’Orso42b,42a, L. Demortier46, M. Deninno6a, F. Devoto21, M. d’Errico40b,40a, A. Di Canto42b,42a, B. Di Ruzza15, J. R. Dittmann5, M. D’Onofrio27, S. Donati42b,42a, P. Dong15, M. Dorigo50a, T. Dorigo40a, K. Ebina54, A. Elagin49, A. Eppig32, R. Erbacher7, S. Errede22, N. Ershaidat15,dd, R. Eusebi49, S. Farrington39, M. Feindt24, J. P. Fernandez29, R. Field16, G. Flanagan15,u, R. Forrest7, M. J. Frank5, M. Franklin20, J. C. Freeman15, Y. Funakoshi54, I. Furic16, M. Gallinaro46, J. E. Garcia18, A. F. Garfinkel44, P. Garosi42c,42a, H. Gerberich22, E. Gerchtein15, S. Giagu47a, V. Giakoumopoulou3, P. Giannetti42a, K. Gibson43, C. M. Ginsburg15, N. Giokaris3, P. Giromini17, G. Giurgiu23, V. Glagolev13, D. Glenzinski15, M. Gold35, D. Goldin49, N. Goldschmidt16, A. Golossanov15, G. Gomez9, G. Gomez-Ceballos30, M. Goncharov30, O. González29, I. Gorelov35, A. T. Goshaw14, K. Goulianos46, S. Grinstein4, C. Grosso-Pilcher11, R. C. Group53,15, J. Guimaraes da Costa20, S. R. Hahn15, E. Halkiadakis48, A. Hamaguchi38, J. Y. Han45, F. Happacher17, K. Hara51, D. Hare48, M. Hare52, R. F. Harr55, K. Hatakeyama5, C. Hays39, M. Heck24, J. Heinrich41, M. Herndon56, S. Hewamanage5, A. Hocker15, W. Hopkins15,h, D. Horn24, S. Hou1, R. E. Hughes36, M. Hurwitz11, U. Husemann57, N. Hussain31, M. Hussein33, J. Huston33, G. Introzzi42a, M. Iorib,47a, A. Ivanov7,p, E. James15, D. Jang10, B. Jayatilaka14, E. J. Jeon25, S. Jindariani15, M. Jones44, K. K. Joo25, S. Y. Jun10, T. R. Junk15, T. Kamon25,49, P. E. Karchin55, A. Kasmi5, Y. Kato38,o, W. Ketchum11, J. Keung41, V. Khotilovich49, B. Kilminster15, D. H. Kim25, H. S. Kim25, J. E. Kim25, M. J. Kim17, S. B. Kim25, S. H. Kim51, Y. K. Kim11, Y. J. Kim25, N. Kimura54, M. Kirby15, S. Klimenko16, K. Knoepfel15, K. Kondo54,a, D. J. Kong25, J. Konigsberg16, A. V. Kotwal14, M. Kreps24, J. Kroll41, D. Krop11, M. Kruse14, V. Krutelyov49,d, T. Kuhr24, M. Kurata51, S. Kwang11, A. T. Laasanen44, S. Lami42a, S. Lammel15, M. Lancaster28, R. L. Lander7, K. Lannon36,y, A. Lath48, G. Latino42c,42a, T. LeCompte2, E. Lee49, H. S. Lee11,q, J. S. Lee25, S. W. Lee49,bb, S. Leo42b,42a, S. Leone42a, J. D. Lewis15, A. Limosani14,t, C.-J. Lin26, M. Lindgren15, E. Lipeles41, A. Lister18, D. O. Litvintsev15, C. Liu43, H. Liu53, Q. Liu44, T. Liu15, S. Lockwitz57, A. Loginov57, D. Lucchesi40b,40a, J. Lueck24, P. Lujan26, P. Lukens15, G. Lungu46, J. Lys26, R. Lysak12,f, R. Madrak15, K. Maeshima15, P. Maestro42c,42a, S. Malik46, G. Manca27,b, A. Manousakis-Katsikakis3, F. Margaroli47a, C. Marino24, M. Martínez4, P. Mastrandrea47a, K. Matera22, M. E. Mattson55, A. Mazzacane15, P. Mazzanti6a, K. S. McFarland45, P. McIntyre49, R. McNulty27,k, A. Mehta27, P. Mehtala21, C. Mesropian46, T. Miao15, D. Mietlicki32, A. Mitra1, H. Miyake51, S. Moed15, N. Moggi6a, M. N. Mondragon15,n, C. S. Moon25, R. Moore15, M. J. Morello42d,42a, J. Morlock24, P. Movilla Fernandez15, A. Mukherjee15, Th. Muller24, P. Murat15, M. Mussini6b,6a, J. Nachtman15,b, Y. Nagai51, J. Naganoma54, I. Nakano37, A. Napier52, J. Nett49, C. Neu53, M. S. Neubauer22, J. Nielsen26,e, L. Nodulman2, S. Y. Noh25, O. Norniella22, L. Oakes39, S. H. Oh14, Y. D. Oh25, I. Oksuzian53, T. Okusawa38, R. Orava21, L. Ortolan4, S. Pagan Griso40b,40a, C. Pagliarone50a, E. Palencia9,g, V. Papadimitriou15, A. A. Paramonov2, J. Patrick15, G. Pauletta50b,50a, M. Paulini10, C. Paus30, D. E. Pellett7, A. Penzo50a, T. J. Phillips14, G. Piacentino42a, E. Pianori41, J. Pilot36, K. Pitts22, C. Plager8, L. Pondrom56, S. Poprocki15,h, K. Potamianos44, F. Prokoshin13,cc, A. Pranko26, F. Ptohos17,i, G. Punzi42b,42a, A. Rahaman43, V. Ramakrishnan56, N. Ranjan44, I. Redondo29, P. Renton39, M. Rescigno47a, T. Riddick28, F. Rimondi6b,6a, L. Ristori42a,15, A. Robson19, T. Rodrigo9, T. Rodriguez41, E. Rogers22, S. Rolli52,j, R. Roser15, F. Ruffini42c,42a, A. Ruiz9, J. Russ10, V. Rusu15, A. Safonov49, W. K. Sakumoto45, Y. Sakurai54, L. Santi50b,50a, K. Sato51, V. Saveliev15,w, A. Savoy-Navarro15,aa, P. Schlabach15, A. Schmidt24, E. E. Schmidt15, T. Schwarz15, L. Scodellaro9, A. Scribano42c,42a, F. Scuri42a, S. Seidel35, Y. Seiya38, A. Semenov13, F. Sforza42c,42a, S. Z. Shalhout7, T. Shears27, P. F. Shepard43, M. Shimojima51,v, M. Shochet11, I. Shreyber-Tecker34, A. Simonenko13, P. Sinervo31, K. Sliwa52, J. R. Smith7, F. D. Snider15, A. Soha15, V. Sorin4, H. Song43, P. Squillacioti42c,42a, M. Stancari15, R. St. Denis19, B. Stelzer31, O. Stelzer-Chilton31, D. Stentz15,x, J. Strologas35, G. L. Strycker32, Y. Sudo51, A. Sukhanov15, I. Suslov13, K. Takemasa51, Y. Takeuchi51, J. Tang11, M. Tecchio32, P. K. Teng1, J. Thom15,h, J. Thome10, G. A. Thompson22, E. Thomson41, D. Toback49, S. Tokar12, K. Tollefson33, T. Tomura51, D. Tonelli15, S. Torre17, D. Torretta15, P. Totaro40a, M. Trovato42d,42a, F. Ukegawa51, S. Uozumi25, A. Varganov32, F. Vázquez16,n, G. Velev15, C. Vellidis15, M. Vidal44, I. Vila9, R. Vilar9, J. Vizán9, M. Vogel35, G. Volpi17, P. Wagner41, R. L. Wagner15, T. Wakisaka38, R. Wallny8, S. M. Wang1, A. Warburton31, D. Waters28, W. C. Wester, III15, D. Whiteson41,c, A. B. Wicklund2, E. Wicklund15, S. Wilbur11, F. Wick24, H. H. Williams41, J. S. Wilson36, P. Wilson15, B. L. Winer36, P. Wittich15,h, S. Wolbers15, H. Wolfe36, T. Wright32, X. Wu18, Z. Wu5, K. Yamamoto38, D. Yamato38, T. Yang15, U. K. Yang11,r, Y. C. Yang25, W.-M. Yao26, G. P. Yeh15, K. Yi15,b, J. Yoh15, K. Yorita54, T. Yoshida38,m, G. B. Yu14, I. Yu25, S. S. Yu15, J. C. Yun15, A. Zanetti50a, Y. Zeng14, C. Zhou14, and S. Zucchelli6b,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
    • 7University of California, Davis, Davis, California 95616, USA
    • 8University of California, Los Angeles, Los Angeles, California 90024, USA
    • 9Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain
    • 10Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    • 11Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
    • 12Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia
    • 13Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
    • 14Duke University, Durham, North Carolina 27708, USA
    • 15Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
    • 16University of Florida, Gainesville, Florida 32611, USA
    • 17Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
    • 18University of Geneva, CH-1211 Geneva 4, Switzerland
    • 19Glasgow University, Glasgow G12 8QQ, United Kingdom
    • 20Harvard University, Cambridge, Massachusetts 02138, USA
    • 21Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland
    • 22University of Illinois, Urbana, Illinois 61801, USA
    • 23The Johns Hopkins University, Baltimore, Maryland 21218, USA
    • 24Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany
    • 25Center 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
    • 26Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
    • 27University of Liverpool, Liverpool L69 7ZE, United Kingdom
    • 28University College London, London WC1E 6BT, United Kingdom
    • 29Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain
    • 30Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    • 31Institute 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
    • 32University of Michigan, Ann Arbor, Michigan 48109, USA
    • 33Michigan State University, East Lansing, Michigan 48824, USA
    • 34Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia
    • 35University of New Mexico, Albuquerque, New Mexico 87131, USA
    • 36The Ohio State University, Columbus, Ohio 43210, USA
    • 37Okayama University, Okayama 700-8530, Japan
    • 38Osaka City University, Osaka 588, Japan
    • 39University of Oxford, Oxford OX1 3RH, United Kingdom
    • 40aIstituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy
    • 40bUniversity of Padova, I-35131 Padova, Italy
    • 41University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    • 42aIstituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy
    • 42bUniversity of Pisa, I-56127 Pisa, Italy
    • 42cUniversity of Siena, I-56127 Pisa, Italy
    • 42dScuola Normale Superiore, I-56127 Pisa, Italy
    • 43University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
    • 44Purdue University, West Lafayette, Indiana 47907, USA
    • 45University of Rochester, Rochester, New York 14627, USA
    • 46The Rockefeller University, New York, New York 10065, USA
    • 47aIstituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy
    • bSapienza Università di Roma, I-00185 Roma, Italy
    • 48Rutgers University, Piscataway, New Jersey 08855, USA
    • 49Texas A&M University, College Station, Texas 77843, USA
    • 50aIstituto Nazionale di Fisica Nucleare Trieste/Udine, I-34100 Trieste, Italy
    • 50bUniversity of Udine, I-33100 Udine, Italy
    • 51University of Tsukuba, Tsukuba, Ibaraki 305, Japan
    • 52Tufts University, Medford, Massachusetts 02155, USA
    • 53University of Virginia, Charlottesville, Virginia 22906, USA
    • 54Waseda University, Tokyo 169, Japan
    • 55Wayne State University, Detroit, Michigan 48201, USA
    • 56University of Wisconsin, Madison, Wisconsin 53706, USA
    • 57Yale University, New Haven, Connecticut 06520, USA

    • aDeceased.
    • bVisitor from Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari, 09042 Monserrato (Cagliari), Italy.
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    Phys. Rev. Lett. 108, 101801 – Published 7 March, 2012

    DOI: https://doi.org/10.1103/PhysRevLett.108.101801

    Abstract

    In this Letter, we present a precise measurement of the total ZZ production cross section in pp¯ collisions at s=1.96  TeV, using data collected with the CDF II detector corresponding to an integrated luminosity of approximately 6  fb−1. The result is obtained by combining separate measurements in the four-charged (ℓℓℓ′ℓ′) and two-charged-lepton and two-neutral-lepton (ℓℓνν) decay modes of the Z boson pair. The combined measured cross section for pp¯→ZZ is 1.64−0.38+0.44  pb. This is the most precise measurement of the ZZ production cross section in 1.96 TeV pp¯ collisions to date.

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