Direct measurement of the mass difference between top and antitop quarks

Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahsan, M.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Ancu, L. S.; Andeen, T.; Anzelc, M. S.; Aoki, M.; Arnoud, Y.; Arov, M.; Arthaud, M.; Askew, A.; Åsman, B.; Atramentov, O.; Avila, C.; Backusmayes, J.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Barfuss, A. F.; Bargassa, P.; Baringer, P.; Barreto, J.; Bartlett, J. F.; Bassler, U.; Bauer, D.; Beale, S.; Bean, A.; Begalli, M.; Begel, M.; Belanger-Champagne, C.; Bellantoni, L.; Bellavance, A.; Benitez, J. A.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besançon, M.; Beuselinck, R.; Bezzubov, V. A.; Bhat, P. C.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Bolton, T. A.; Boos, E. E.; Borissov, G.; Bose, T.; Brandt, A.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Bu, X. 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S.; Jabeen, S.; Jaffré, M.; Jain, S.; Jakobs, K.; Jamin, D.; Jesik, R.; Johns, K.; Johnson, C.; Johnson, M.; Johnston, D.; Jonckheere, A.; Jonsson, P.; Juste, A.; Kajfasz, E.; Karmanov, D.; Kasper, P. A.; Katsanos, I.; Kaushik, V.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Khatidze, D.; Kim, T. J.; Kirby, M. H.; Kirsch, M.; Klima, B.; Kohli, J. M.; Konrath, J. P.; Kozelov, A. V.; Kraus, J.; Kuhl, T.; Kumar, A.; Kupco, A.; Kurča, T.; Kuzmin, V. A.; Kvita, J.; Lacroix, F.; Lam, D.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, W. M.; Leflat, A.; Lellouch, J.; Li, J.; Li, L.; Li, Q. Z.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, Y.; Liu, Z.; Lobodenko, A.; Lokajicek, M.; Love, P.; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; MacIel, A. K A; MacKin, D.; Mättig, P.; Magaña-Villalba, R.; Magerkurth, A.; Mal, P. K.; Malbouisson, H. B.; Malik, S.; Malyshev, V. 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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/71155

Title:

Direct measurement of the mass difference between top and antitop quarks

Author(s):

Institution:

Universidad de Buenos Aires
Centro Brasileiro de Pesquisas Físicas (CBPF)
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Federal do ABC (UFABC)
Universidade Estadual Paulista (UNESP)
University of Alberta
University of Science and Technology of China
Universidad de los Andes
Faculty of Mathematics and Physics
Czech Technical University in Prague
Institute of Physics
Universidad San Francisco de Quito
CNRS/IN2P3
Institut National Polytechnique de Grenoble
IN2P3/CNRS
Universités Paris VI and VII
SPP
RWTH Aachen University
Universität Bonn
Universität Freiburg
Georg-August-Universität Göttingen
Universität Mainz
Ludwig-Maximilians-Universität München
University of Wuppertal
Panjab University
Delhi University
Tata Institute of Fundamental Research
University College Dublin
Korea University
SungKyunKwan University
CINVESTAV
University of Amsterdam/NIKHEF
NIKHEF
Joint Institute for Nuclear Research
Institute for Theoretical and Experimental Physics (ITEP)
Moscow State University
Institute for High Energy Physics
Petersburg Nuclear Physics Institute
Stockholm University
Lancaster University
Imperial College
University of Manchester
University of Arizona
California State University
University of California
Florida State University
Fermi National Accelerator Laboratory
University of Illinois at Chicago
Northern Illinois University
Northwestern University (NU)
Indiana University
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Kansas State University
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Northeastern University
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Brookhaven National Laboratory
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University of Washington
Visitor from Augustana College
Visitor from Rutgers University
University of Liverpool
IPN
Universidad Autonoma de Sinaloa
Helsinki Institute of Physics
Universitt Bern
Universitt Zrich

ISSN:

0031-9007
1079-7114

Abstract:

We present a measurement of the mass difference between t and t̄ quarks in lepton+jets final states of tt̄ events in 1fb-1 of data collected with the D0 detector from Fermilab Tevatron Collider pp̄ collisions at s=1.96TeV. The measured mass difference of 3.8±3.7GeV is consistent with the equality of t and t̄ masses. This is the first direct measurement of a mass difference between a quark and its antiquark partner. © 2009 The American Physical Society.

Issue Date:

21-Sep-2009

Citation:

Physical Review Letters, v. 103, n. 13, 2009.

Keywords:

Antiquarks
Direct measurement
Fermilab Tevatron collider
Final state
Mass difference
Tellurium compounds

Source:

http://dx.doi.org/10.1103/PhysRevLett.103.132001

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/71155

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