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Measurement of the Top Quark Mass Using Dilepton Events

B. Abbott28, M. Abolins25, B. S. Acharya43, I. Adam12, D. L. Adams37, M. Adams17, S. Ahn14, H. Aihara22, G. A. Alves10 et al. (D0 Collaboration)

G. A. Alves10, E. Amidi29, N. Amos24, E. W. Anderson19, R. Astur42, M. M. Baarmand42, A. Baden23, V. Balamurali32, J. Balderston16, B. Baldin14, S. Banerjee43, J. Bantly5, E. Barberis22, J. F. Bartlett14, K. Bazizi39, A. Belyaev26, S. B. Beri34, I. Bertram31, V. A. Bezzubov35, P. C. Bhat14, V. Bhatnagar34, M. Bhattacharjee13, N. Biswas32, G. Blazey30, S. Blessing15, P. Bloom7, A. Boehnlein14, N. I. Bojko35, F. Borcherding14, J. Borders39, C. Boswell9, A. Brandt14, R. Brock25, A. Bross14, D. Buchholz31, V. S. Burtovoi35, J. M. Butler3, W. Carvalho10, D. Casey39, Z. Casilum42, H. Castilla-Valdez11, D. Chakraborty42, S.-M. Chang29, S. V. Chekulaev35, L.-P. Chen22, W. Chen42, S. Choi41, S. Chopra24, B. C. Choudhary9, J. H. Christenson14, M. Chung17, D. Claes27, A. R. Clark22, W. G. Cobau23, J. Cochran9, W. E. Cooper14, C. Cretsinger39, D. Cullen-Vidal5, M. A. C. Cummings16, D. Cutts5, O. I. Dahl22, K. Davis2, K. De44, K. Del Signore24, M. Demarteau14, D. Denisov14, S. P. Denisov35, H. T. Diehl14, M. Diesburg14, G. Di Loreto25, P. Draper44, Y. Ducros40, L. V. Dudko26, S. R. Dugad43, D. Edmunds25, J. Ellison9, V. D. Elvira42, R. Engelmann42, S. Eno23, G. Eppley37, P. Ermolov26, O. V. Eroshin35, V. N. Evdokimov35, T. Fahland8, M. Fatyga4, M. K. Fatyga39, J. Featherly4, S. Feher14, D. Fein2, T. Ferbel39, G. Finocchiaro42, H. E. Fisk14, Y. Fisyak7, E. Flattum14, G. E. Forden2, M. Fortner30, K. C. Frame25, S. Fuess14, E. Gallas44, A. N. Galyaev35, P. Gartung9, T. L. Geld25, R. J. Genik, II25, K. Genser14, C. E. Gerber14, B. Gibbard4, S. Glenn7, B. Gobbi31, M. Goforth15, A. Goldschmidt22, B. Gómez1, G. Gómez23, P. I. Goncharov35, J. L. González Solís11, H. Gordon4, L. T. Goss45, K. Gounder9, A. Goussiou42, N. Graf4, P. D. Grannis42, D. R. Green14, J. Green30, H. Greenlee14, G. Grim7, S. Grinstein6, N. Grossman14, P. Grudberg22, S. Grünendahl39, G. Guglielmo33, J. A. Guida2, J. M. Guida5, A. Gupta43, S. N. Gurzhiev35, P. Gutierrez33, Y. E. Gutnikov35, N. J. Hadley23, H. Haggerty14, S. Hagopian15, V. Hagopian15, K. S. Hahn39, R. E. Hall8, S. Hansen14, J. M. Hauptman19, D. Hedin30, A. P. Heinson9, U. Heintz14, R. Hernández-Montoya11, T. Heuring15, R. Hirosky15, J. D. Hobbs14, B. Hoeneisen1,*, J. S. Hoftun5, F. Hsieh24, Ting Hu42, Tong Hu18, T. Huehn9, A. S. Ito14, E. James2, J. Jaques32, S. A. Jerger25, R. Jesik18, J. Z.-Y. Jiang42, T. Joffe-Minor31, K. Johns2, M. Johnson14, A. Jonckheere14, M. Jones16, H. Jöstlein14, S. Y. Jun31, C. K. Jung42, S. Kahn4, G. Kalbfleisch33, J. S. Kang20, R. Kehoe32, M. L. Kelly32, C. L. Kim20, S. K. Kim41, A. Klatchko15, B. Klima14, C. Klopfenstein7, V. I. Klyukhin35, V. I. Kochetkov35, J. M. Kohli34, D. Koltick36, A. V. Kostritskiy35, J. Kotcher4, A. V. Kotwal12, J. Kourlas28, A. V. Kozelov35, E. A. Kozlovski35, J. Krane27, M. R. Krishnaswamy43, S. Krzywdzinski14, S. Kunori23, S. Lami42, H. Lan14,†, R. Lander7, F. Landry25, G. Landsberg14, B. Lauer19, A. Leflat26, H. Li42, J. Li44, Q. Z. Li-Demarteau14, J. G. R. Lima38, D. Lincoln24, S. L. Linn15, J. Linnemann25, R. Lipton14, Q. Liu14,‡, Y. C. Liu31, F. Lobkowicz39, S. C. Loken22, S. Lökös42, L. Lueking14, A. L. Lyon23, A. K. A. Maciel10, R. J. Madaras22, R. Madden15, L. Magaña-Mendoza11, S. Mani7, H. S. Mao14,§, R. Markeloff30, L. Markosky2, T. Marshall18, M. I. Martin14, K. M. Mauritz19, B. May31, A. A. Mayorov35, R. McCarthy42, J. McDonald15, T. McKibben17, J. McKinley25, T. McMahon33, H. L. Melanson14, M. Merkin26, K. W. Merritt14, H. Miettinen37, A. Mincer28, J. M. de Miranda10, C. S. Mishra14, N. Mokhov14, N. K. Mondal43, H. E. Montgomery14, P. Mooney1, H. da Motta10, C. Murphy17, F. Nang2, M. Narain14, V. S. Narasimham43, A. Narayanan2, H. A. Neal24, J. P. Negret1, P. Nemethy28, M. Nicola10, D. Norman45, L. Oesch24, V. Oguri38, E. Oltman22, N. Oshima14, D. Owen25, P. Padley37, M. Pang19, A. Para14, Y. M. Park21, R. Partridge5, N. Parua43, M. Paterno39, J. Perkins44, M. Peters16, R. Piegaia6, H. Piekarz15, Y. Pischalnikov36, V. M. Podstavkov35, B. G. Pope25, H. B. Prosper15, S. Protopopescu4, J. Qian24, P. Z. Quintas14, R. Raja14, S. Rajagopalan4, O. Ramirez17, L. Rasmussen42, S. Reucroft29, M. Rijssenbeek42, T. Rockwell25, N. A. Roe22, P. Rubinov31, R. Ruchti32, J. Rutherfoord2, A. Sánchez-Hernández11, A. Santoro10, L. Sawyer44, R. D. Schamberger42, H. Schellman31, J. Sculli28, E. Shabalina26, C. Shaffer15, H. C. Shankar43, R. K. Shivpuri13, M. Shupe2, H. Singh9, J. B. Singh34, V. Sirotenko30, W. Smart14, A. Smith2, R. P. Smith14, R. Snihur31, G. R. Snow27, J. Snow33, S. Snyder4, J. Solomon17, P. M. Sood34, M. Sosebee44, N. Sotnikova26, M. Souza10, A. L. Spadafora22, R. W. Stephens44, M. L. Stevenson22, D. Stewart24, D. A. Stoianova35, D. Stoker8, M. Strauss33, K. Streets28, M. Strovink22, A. Sznajder10, P. Tamburello23, J. Tarazi8, M. Tartaglia14, T. L. T. Thomas31, J. Thompson23, T. G. Trippe22, P. M. Tuts12, N. Varelas25, E. W. Varnes22, D. Vititoe2, A. A. Volkov35, A. P. Vorobiev35, H. D. Wahl15, G. Wang15, J. Warchol32, G. Watts5, M. Wayne32, H. Weerts25, A. White44, J. T. White45, J. A. Wightman19, S. Willis30, S. J. Wimpenny9, J. V. D. Wirjawan45, J. Womersley14, E. Won39, D. R. Wood29, H. Xu5, R. Yamada14, P. Yamin4, C. Yanagisawa42, J. Yang28, T. Yasuda29, P. Yepes37, C. Yoshikawa16, S. Youssef15, J. Yu14, Y. Yu41, Z. H. Zhu39, D. Zieminska18, A. Zieminski18, E. G. Zverev26, and A. Zylberstejn40 (D0 Collaboration)

  • 1Universidad de los Andes, Bogotá, Colombia
  • 2University of Arizona, Tucson, Arizona 85721
  • 3Boston University, Boston, Massachusetts 02215
  • 4Brookhaven National Laboratory, Upton, New York 11973
  • 5Brown University, Providence, Rhode Island 02912
  • 6Universidad de Buenos Aires, Buenos Aires, Argentina
  • 7University of California, Davis, California 95616
  • 8University of California, Irvine, California 92697
  • 9University of California, Riverside, California 92521
  • 10LAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil
  • 11CINVESTAV, Mexico City, Mexico
  • 12Columbia University, New York, New York 10027
  • 13Delhi University, Delhi, India 110007
  • 14Fermi National Accelerator Laboratory, Batavia, Illinois 60510
  • 15Florida State University, Tallahassee, Florida 32306
  • 16University of Hawaii, Honolulu, Hawaii 96822
  • 17University of Illinois at Chicago, Chicago, Illinois 60607
  • 18Indiana University, Bloomington, Indiana 47405
  • 19Iowa State University, Ames, Iowa 50011
  • 20Korea University, Seoul, Korea
  • 21Kyungsung University, Pusan, Korea
  • 22Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720
  • 23University of Maryland, College Park, Maryland 20742
  • 24University of Michigan, Ann Arbor, Michigan 48109
  • 25Michigan State University, East Lansing, Michigan 48824
  • 26Moscow State University, Moscow, Russia
  • 27University of Nebraska, Lincoln, Nebraska 68588
  • 28New York University, New York, New York 10003
  • 29Northeastern University, Boston, Massachusetts 02115
  • 30Northern Illinois University, De Kalb, Illinois 60115
  • 31Northwestern University, Evanston, Illinois 60208
  • 32University of Notre Dame, Notre Dame, Indiana 46556
  • 33University of Oklahoma, Norman, Oklahoma 73019
  • 34University of Panjab, Chandigarh 16-00-14, India
  • 35Institute for High Energy Physics, 142-284 Protvino, Russia
  • 36Purdue University, West Lafayette, Indiana 47907
  • 37Rice University, Houston, Texas 77005
  • 38Universidade Estadual do Rio de Janeiro, Brazil
  • 39University of Rochester, Rochester, New York 14627
  • 40CEA, DAPNIA/Service de Physique des Particules, CE-SACLAY, Gif-sur-Yvette, France
  • 41Seoul National University, Seoul, Korea
  • 42State University of New York, Stony Brook, New York 11794
  • 43Tata Institute of Fundamental Research, Colaba, Mumbai 400005, India
  • 44University of Texas, Arlington, Texas 76019
  • 45Texas A&M University, College Station, Texas 77843

  • *Visitor from Universidad San Francisco de Quito, Ecuador.
  • †Visitor from IHEP, Beijing, China.
  • ‡
  • §
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Phys. Rev. Lett. 80, 2063 – Published 9 March, 1998

DOI: https://doi.org/10.1103/PhysRevLett.80.2063

Abstract

The D0 Collaboration has performed a measurement of the top quark mass mt based on six candidate events for the process tt¯→bW+b¯W−, where the W bosons decay to eν or μν. This sample was collected during an exposure of the D0 detector to an integrated luminosity of 125pb−1 of s=1.8TeVpp¯ collisions. We obtain mt=168.4±12.3(stat)±3.6(syst)GeV/c2, consistent with the measurement obtained using single-lepton events. Combination of the single-lepton and dilepton results yields mt=172.0±7.5GeV/c2.

View figure in article

See Also

Update on the Top Quark

Phys. Rev. Focus 1, 2 (1998)

References (14)

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Outline

Information

Phys. Rev. Lett. 80, 2063– Published 9 March, 1998
  • Received 16 June 1997

© 1998 American Physical Society

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