Phys. Rev. Lett.
100,
062005
(2008)
[7 pages]
Cross-Section-Constrained Top-Quark Mass Measurement from Dilepton Events at the Tevatron
T. Aaltonen et al. CDF Collaboration
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T. Aaltonen23, J. Adelman13, T. Akimoto54, M. G. Albrow17, B. Álvarez González11, S. Amerio42, D. Amidei34, A. Anastassov51, A. Annovi19, J. Antos14, M. Aoki24, G. Apollinari17, A. Apresyan47, T. Arisawa56, A. Artikov15, W. Ashmanskas17, A. Attal3, A. Aurisano52, F. Azfar41, P. Azzi-Bacchetta42, P. Azzurri45, N. Bacchetta42, W. Badgett17, A. Barbaro-Galtieri28, V. E. Barnes47, B. A. Barnett25, S. Baroiant7, V. Bartsch30, G. Bauer32, P.-H. Beauchemin33, F. Bedeschi45, P. Bednar14, S. Behari25, G. Bellettini45, J. Bellinger58, A. Belloni22, D. Benjamin16, A. Beretvas17, J. Beringer28, T. Berry29, A. Bhatti49, M. Binkley17, D. Bisello42, I. Bizjak30, R. E. Blair2, C. Blocker6, B. Blumenfeld25, A. Bocci16, A. Bodek48, V. Boisvert48, G. Bolla47, A. Bolshov32, D. Bortoletto47, J. Boudreau46, A. Boveia10, B. Brau10, A. Bridgeman24, L. Brigliadori5, C. Bromberg35, E. Brubaker13, J. Budagov15, H. S. Budd48, S. Budd24, K. Burkett17, G. Busetto42, P. Bussey21, A. Buzatu33, K. L. Byrum2, S. Cabrera16,k, M. Campanelli35, M. Campbell34, F. Canelli17, A. Canepa44, D. Carlsmith58, R. Carosi45, S. Carrillo18,e, S. Carron33, B. Casal11, M. Casarsa17, A. Castro5, P. Catastini45, D. Cauz53, M. Cavalli-Sforza3, A. Cerri28, L. Cerrito30,i, S. H. Chang27, Y. C. Chen1, M. Chertok7, G. Chiarelli45, G. Chlachidze17, F. Chlebana17, K. Cho27, D. Chokheli15, J. P. Chou22, G. Choudalakis32, S. H. Chuang51, K. Chung12, W. H. Chung58, Y. S. Chung48, C. I. Ciobanu24, M. A. Ciocci45, A. Clark20, D. Clark6, G. Compostella42, M. E. Convery17, J. Conway7, B. Cooper30, K. Copic34, M. Cordelli19, G. Cortiana42, F. Crescioli45, C. Cuenca Almenar7,k, J. Cuevas11,h, R. Culbertson17, J. C. Cully34, D. Dagenhart17, M. Datta17, T. Davies21, P. de Barbaro48, S. DeCecco50, A. Deisher28, G. De Lentdecker48,§, G. De Lorenzo3, M. Dell’Orso45, L. Demortier49, J. Deng16, M. Deninno5, D. De Pedis50, P. F. Derwent17, G. P. Di Giovanni43, C. Dionisi50, B. Di Ruzza53, J. R. Dittmann4, M. D’Onofrio3, S. Donati45, P. Dong8, J. Donini42, T. Dorigo42, S. Dube51, J. Efron38, R. Erbacher7, D. Errede24, S. Errede24, R. Eusebi17, H. C. Fang28, S. Farrington29, W. T. Fedorko13, R. G. Feild59, M. Feindt26, J. P. Fernandez31, C. Ferrazza45, R. Field18, G. Flanagan47, R. Forrest7, S. Forrester7, M. Franklin22, J. C. Freeman28, I. Furic18, M. Gallinaro49, J. Galyardt12, F. Garberson10, J. E. Garcia45, A. F. Garfinkel47, H. Gerberich24, D. Gerdes34, S. Giagu50, V. Giakoumopolou45,*, P. Giannetti45, K. Gibson46, J. L. Gimmell48, C. M. Ginsburg17, N. Giokaris15,*, M. Giordani53, P. Giromini19, M. Giunta45, V. Glagolev15, D. Glenzinski17, M. Gold36, N. Goldschmidt18, A. Golossanov17, G. Gomez11, G. Gomez-Ceballos32, M. Goncharov52, O. González31, I. Gorelov36, A. T. Goshaw16, K. Goulianos49, A. Gresele42, S. Grinstein22, C. Grosso-Pilcher13, R. C. Group17, U. Grundler24, J. Guimaraes da Costa22, Z. Gunay-Unalan35, C. Haber28, K. Hahn32, S. R. Hahn17, E. Halkiadakis51, A. Hamilton20, B.-Y. Han48, J. 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Martínez3, R. Martínez-Ballarín31, T. Maruyama54, P. Mastrandrea50, T. Masubuchi54, M. E. Mattson57, P. Mazzanti5, K. S. McFarland48, P. McIntyre52, R. McNulty29,b, A. Mehta29, P. Mehtala23, S. Menzemer11,d, A. Menzione45, P. Merkel47, C. Mesropian49, A. Messina35, T. Miao17, N. Miladinovic6, J. Miles32, R. Miller35, C. Mills22, M. Milnik26, A. Mitra1, G. Mitselmakher18, H. Miyake54, S. Moed22, N. Moggi5, C. S. Moon27, R. Moore17, M. Morello45, P. Movilla Fernandez28, J. Mülmenstädt28, A. Mukherjee17, Th. Muller26, R. Mumford25, P. Murat17, M. Mussini5, J. Nachtman17, Y. Nagai54, A. Nagano54, J. Naganoma56, K. Nakamura54, I. Nakano39, A. Napier55, V. Necula16, C. Neu44, M. S. Neubauer24, J. Nielsen28,††, L. Nodulman2, M. Norman9, O. Norniella24, E. Nurse30, S. H. Oh16, Y. D. Oh27, I. Oksuzian18, T. Okusawa40, R. Oldeman29, R. Orava23, K. Osterberg23, S. Pagan Griso42, C. Pagliarone45, E. Palencia17, V. Papadimitriou17, A. Papaikonomou26, A. A. Paramonov13, B. Parks38, S. 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Vallecorsa20, N. van Remortel23, A. Varganov34, E. Vataga36, F. Vázquez18,e, G. Velev17, C. Vellidis45,*, V. Veszpremi47, M. Vidal31, R. Vidal17, I. Vila11, R. Vilar11, T. Vine30, M. Vogel36, I. Volobouev28,j, G. Volpi45, F. Würthwein9, P. Wagner44, R. G. Wagner2, R. L. Wagner17, J. Wagner-Kuhr26, W. Wagner26, T. Wakisaka40, R. Wallny8, S. M. Wang1, A. Warburton33, D. Waters30, M. Weinberger52, W. C. Wester, III17, B. Whitehouse55, D. Whiteson44,**, A. B. Wicklund2, E. Wicklund17, G. Williams33, H. H. Williams44, P. Wilson17, B. L. Winer38, P. Wittich17,‡‡, S. Wolbers17, C. Wolfe13, T. Wright34, X. Wu20, S. M. Wynne29, A. Yagil9, K. Yamamoto40, J. Yamaoka51, T. Yamashita39, C. Yang59, U. K. Yang13,f, Y. C. Yang27, W. M. Yao28, G. P. Yeh17, J. Yoh17, K. Yorita13, T. Yoshida40, G. B. Yu48, I. Yu27, S. S. Yu17, J. C. Yun17, L. Zanello50, A. Zanetti53, I. Zaw22, X. Zhang24, Y. Zheng8,†, and S. Zucchelli5 (CDF Collaboration)
1Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China 2Argonne National Laboratory, Argonne, Illinois 60439, USA 3Institut de Fisica d’Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain 4Baylor University, Waco, Texas 76798, USA 5Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy 6Brandeis University, Waltham, Massachusetts 02254, USA 7University of California, Davis, Davis, California 95616, USA 8University of California, Los Angeles, Los Angeles, California 90024, USA 9University of California, San Diego, La Jolla, California 92093, USA 10University of California, Santa Barbara, Santa Barbara, California 93106, USA 11Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain 12Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA 13Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA 14Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia 15Joint Institute for Nuclear Research, RU-141980 Dubna, Russia 16Duke University, Durham, North Carolina 27708 17Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA 18University of Florida, Gainesville, Florida 32611, USA 19Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy 20University of Geneva, CH-1211 Geneva 4, Switzerland 21Glasgow University, Glasgow G12 8QQ, United Kingdom 22Harvard University, Cambridge, Massachusetts 02138, USA 23Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland 24University of Illinois, Urbana, Illinois 61801, USA 25The Johns Hopkins University, Baltimore, Maryland 21218, USA 26Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany 27Center 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 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, Canada H3A 2T8; and University of Toronto, Toronto, Canada M5S 1A7 34University of Michigan, Ann Arbor, Michigan 48109, USA 35Michigan State University, East Lansing, Michigan 48824, USA 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 42University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy 43LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France 44University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA 45Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola 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 10021, USA 50Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome “La Sapienza”, I-00185 Roma, Italy 51Rutgers University, Piscataway, New Jersey 08855, USA 52Texas A&M University, College Station, Texas 77843, USA 53Istituto Nazionale di Fisica Nucleare, University of Trieste/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
Received 22 October 2007; published 15 February 2008
We report the first top-quark mass measurement that uses a cross-section constraint to improve the mass determination. This measurement is made with a dilepton tt̅ event candidate sample collected with the Collider Detector II at Fermilab. From a data sample corresponding to an integrated luminosity of 1.2 fb-1, we measure a top-quark mass of 170.7-3.9+4.2(stat)±2.6(syst)±2.4(theory) GeV/c2. The measurement without the cross-section constraint is 169.7-4.9+5.2(stat)±3.1(syst) GeV/c2.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.062005
DOI:
10.1103/PhysRevLett.100.062005
PACS:
14.65.Ha, 12.15.Ff, 13.85.Ni, 13.85.Qk
*Visitor from University of Athens, 15784 Athens, Greece. †Visitor from Chinese Academy of Sciences, Beijing 100864, China. ‡Visitor from University of Bristol, Bristol BS8 1TL, U.K. §Visitor from University Libre de Bruxelles, B-1050 Brussels, Belgium. **Visitor from University of California Irvine, Irvine, CA 92697, USA. ††Visitor from University of California Santa Cruz, Santa Cruz, CA 95064, USA. ‡‡Visitor from Cornell University, Ithaca, NY 14853, USA. aVisitor from University of Cyprus, Nicosia CY-1678, Cyprus. bVisitor from University College Dublin, Dublin 4, Ireland. cVisitor from University of Edinburgh, Edinburgh EH9 3JZ, U.K. dVisitor from University of Heidelberg, D-69120 Heidelberg, Germany. eVisitor from Universidad Iberoamericana, Mexico D.F., Mexico. fVisitor from University of Manchester, Manchester M13 9PL, U.K. gVisitor from Nagasaki Institute of Applied Science, Nagasaki, Japan. hVisitor from University de Oviedo, E-33007 Oviedo, Spain. iVisitor from Queen Mary, University of London, London, E1 4NS, U.K. jVisitor from Texas Tech University, Lubbock, TX 79409, USA. kVisitor from IFIC (CSIC-Universitat de Valencia), 46071 Valencia, Spain.
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