Direct Measurement of the Mass Difference between Top and Antitop Quarks

被引：29

作者：

Abazov, V. M. ^{[1
]}

Abbott, B. ^{[82
]}

Abolins, M. ^{[72
]}

Acharya, B. S. ^{[36
]}

Adams, M. ^{[58
]}

Adams, T. ^{[56
]}

Aguilo, E. ^{[7
,8
,9
,10
]}

Ahsan, M. ^{[66
]}

Alexeev, G. D. ^{[1
]}

Alkhazov, G. ^{[47
]}

Alton, A. ^{[71
]}

Alverson, G. ^{[70
]}

Alves, G. A. ^{[3
]}

Ancu, L. S. ^{[43
]}

Andeen, T. ^{[60
]}

Anzelc, M. S. ^{[60
]}

Aoki, M. ^{[57
]}

Arnoud, Y. ^{[18
]}

Arov, M. ^{[67
]}

Arthaud, M. ^{[23
]}

Askew, A. ^{[56
]}

Asman, B. ^{[48
,49
]}

Atramentov, O. ^{[56
]}

Avila, C. ^{[12
]}

BackusMayes, J. ^{[89
]}

Badaud, F. ^{[17
]}

Bagby, L. ^{[57
]}

Baldin, B. ^{[57
]}

Bandurin, D. V. ^{[66
]}

Banerjee, S. ^{[36
]}

Barberis, E. ^{[70
]}

Barfuss, A. -F. ^{[19
]}

Bargassa, P. ^{[87
]}

Baringer, P. ^{[65
]}

Barreto, J. ^{[3
]}

Bartlett, J. F. ^{[57
]}

Bassler, U. ^{[23
]}

Bauer, D. ^{[51
]}

Beale, S. ^{[7
,8
,9
,10
]}

Bean, A. ^{[65
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[80
]}

Belanger-Champagne, C. ^{[48
,49
]}

Bellantoni, L. ^{[57
]}

Bellavance, A. ^{[57
]}

Benitez, J. A. ^{[72
]}

Beri, S. B. ^{[34
]}

Bernardi, G. ^{[21
,22
]}

Bernhard, R. ^{[29
]}

Bertram, I. ^{[50
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Buenos Aires, Buenos Aires, DF, Argentina

[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[4] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

[6] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[7] Univ Alberta, Edmonton, AB, Canada

[8] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[9] York Univ, Toronto, ON M3J 2R7, Canada

[10] McGill Univ, Montreal, PQ, Canada

[11] Univ Sci & Technol China, Hefei 230026, Peoples R China

[12] Univ Los Andes, Bogota, Colombia

[13] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic

[14] Czech Tech Univ, CR-16635 Prague, Czech Republic

[15] Acad Sci Czech Republ, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[16] Univ San Francisco Quito, Quito, Ecuador

[17] Univ Blaise Pascal, CNRS, IN2P3, LPC, Clermont, France

[18] Univ Grenoble 1, CNRS, LPSC, IN2P3,Inst Natl Polytech Grenoble, Grenoble, France

[19] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France

[20] Univ Paris Sud, CNRS, IN2P3, LAL, Orsay, France

[21] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[22] Univ Paris 07, Paris, France

[23] CEA, SPP, Saclay, France

[24] Univ Strasbourg, CNRS, IPHC, IN2P3, Strasbourg, France

[25] Univ Lyon, Lyon, France

[26] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France

[27] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[28] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[29] Univ Freiburg, Inst Phys, Freiburg, Germany

[30] Univ Gottingen, Inst Phys 2, Gottingen, Germany

[31] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[32] Univ Munich, Munich, Germany

[33] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[34] Panjab Univ, Chandigarh 160014, India

[35] Univ Delhi, Delhi 110007, India

[36] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[37] Univ Coll Dublin, Dublin 2, Ireland

[38] Korea Univ, Korea Detector Lab, Seoul, South Korea

[39] Sungkyunkwan Univ, Suwon, South Korea

[40] CINVESTAV, Mexico City 14000, DF, Mexico

[41] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[42] FOM Inst NIKHEF, Amsterdam, Netherlands

[43] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands

[44] Inst Theoret & Expt Phys, Moscow 117259, Russia

[45] Moscow MV Lomonosov State Univ, Moscow, Russia

[46] Inst High Energy Phys, Protvino, Russia

[47] Petersburg Nucl Phys Inst, St Petersburg, Russia

[48] Stockholm Univ, S-10691 Stockholm, Sweden

[49] Uppsala Univ, Uppsala, Sweden

[50] Univ Lancaster, Lancaster, England

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 13期

基金：

巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会; 瑞典研究理事会;

关键词：

CPT VIOLATION;

D O I：

10.1103/PhysRevLett.103.132001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a measurement of the mass difference between t and (t) over bar quarks in lepton + jets final states of t (t) over bar events in 1 fb(-1) of data collected with the D0 detector from Fermilab Tevatron Collider p (p) over bar collisions at root s = 1.96 TeV. The measured mass difference of 3.8 +/- 3.7 GeV is consistent with the equality of t and (t) over bar masses. This is the first direct measurement of a mass difference between a quark and its antiquark partner.

引用

页数：7

共 13 条

[1] Measurement of the top quark mass in the lepton plus jets final state with the matrix element method [J].

Abazov, V. M. ;

Abbott, B. ;

Abolins, M. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Agelou, M. ;

Aguilo, E. ;

Ahn, S. H. ;

Ahsan, M. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Alves, G. A. ;

Anastasoaie, M. ;

Andeen, T. ;

Anderson, S. ;

Andrieu, B. ;

Anzelc, M. S. ;

Arnoud, Y. ;

Arov, M. ;

Askew, A. ;

Asman, B. ;

Jesus, A. C. S. Assis ;

Atramentov, O. ;

Autermann, C. ;

Avila, C. ;

Ay, C. ;

Badaud, F. ;

Baden, A. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, P. ;

Banerjee, S. ;

Barberis, E. ;

Bargassa, P. ;

Baringer, P. ;

Barnes, C. ;

Barreto, J. ;

Bartlett, J. F. ;

Bassler, U. ;

Bauer, D. ;

Beale, S. ;

Bean, A. ;

Begalli, M. ;

Begel, M. ;

Belanger-Champagne, C. ;

Bellantoni, L. .

PHYSICAL REVIEW D, 2006, 74 (09)

[2] Precise Measurement of the Top-Quark Mass from lepton plus jets Events [J].

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. ;

Anastasoaie, M. ;

Ancu, L. S. ;

Andeen, T. ;

Andrieu, B. ;

Anzelc, M. S. ;

Aoki, M. ;

Arnoud, Y. ;

Arov, M. ;

Arthaud, M. ;

Askew, A. ;

Asman, B. ;

Jesus, A. C. S. Assis ;

Atramentov, O. ;

Avila, C. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, P. ;

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. .

PHYSICAL REVIEW LETTERS, 2008, 101 (18)

[3] The upgraded DO detector [J].

Abazov, V. M. ;

Abbott, B. ;

Abolins, M. ;

Acharya, B. S. ;

Adams, D. L. ;

Adams, M. ;

Adams, T. ;

Agelou, M. ;

Agram, J. -L. ;

Ahmed, S. N. ;

Ahn, S. H. ;

Ahsan, M. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Alves, G. A. ;

Anastasoaie, M. ;

Andeen, T. ;

Anderson, J. T. ;

Anderson, S. ;

Andrieu, B. ;

Angstadt, R. ;

Anosov, V. ;

Arnoud, Y. ;

Arov, M. ;

Askew, A. ;

Asman, B. ;

Assis Jesus, A. C. S. ;

Atramentov, O. ;

Autermann, C. ;

Avila, C. ;

Babukhadia, L. ;

Bacon, T. C. ;

Badaud, F. ;

Baden, A. ;

Baffioni, S. ;

Bagby, L. ;

Baldin, B. ;

Balm, P. W. ;

Banerjee, P. ;

Banerjee, S. ;

Barberis, E. ;

Bardon, O. ;

Barg, W. ;

Bargassa, P. ;

Baringer, P. ;

Barnes, C. ;

Barreto, J. ;

Bartlett, J. F. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006, 565 (02) :463-537

[4] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[5] TIME REVERSAL IN FIELD THEORY [J].

BELL, JS .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 231 (1187) :479-495

[6] ON THE PRODUCTION OF A W AND JETS AT HADRON COLLIDERS [J].

BERENDS, FA ;

KUIJF, H ;

TAUSK, B ;

GIELE, WT .

NUCLEAR PHYSICS B, 1991, 357 (01) :32-64

[7] Searching for CPT violation in t(t)over-bar production [J].

Cembranos, J. A. R. ;

Rajaraman, A. ;

Takayama, F. .

EPL, 2008, 82 (02)

[8] CPT violation and the standard model [J].

Colladay, D ;

Kostelecky, VA .

PHYSICAL REVIEW D, 1997, 55 (11) :6760-6774

[9]

LUDERS G, 1955, N BOHR DEV PHYS, P30

[10]

Luders G., 1954, DANSK MAT FYS MEDD, V28, P5

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