Measurement of the t-channel single top quark production cross section

被引：43

作者：

Abazov, V. M. ^{[43
]}

Abbott, B. ^{[80
]}

Abolins, M. ^{[1
]}

Acharya, B. S. ^{[35
]}

Adams, M. ^{[58
]}

Adams, I. ^{[56
]}

Aguilo, E. ^{[6
,7
,8
,9
]}

Ahsan, M.

Alexeev, G. D. ^{[43
]}

Alkhazov, G. ^{[47
]}

Alton, A. ^{[70
]}

Alverson, G. ^{[69
]}

Alves, G. A.

Ancu, L. S. ^{[42
]}

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

Aoki, M. ^{[57
]}

Arnoud, Y. ^{[16
,17
]}

Arov, M. ^{[66
]}

Arthaud, M. ^{[22
]}

Askew, A. ^{[56
]}

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

Atramentov, O. ^{[56
]}

Avila, C. ^{[11
]}

BackusMayes, J. ^{[87
]}

Badaud, F.

Bagby, L. ^{[57
]}

Baldin, B. ^{[57
]}

Bandurin, D. V.

Banerjee, S. ^{[35
]}

Barberis, E. ^{[69
]}

Barfuss, A. -F.

Bargassa, P. ^{[85
]}

Baringer, P. ^{[65
]}

Barreto, J.

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

Bassler, U. ^{[22
]}

Bauer, D. ^{[51
]}

Beale, S. ^{[6
,7
,8
,9
]}

Bean, A. ^{[65
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[78
]}

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

Bellantoni, L. ^{[57
]}

Bellavance, A. ^{[57
]}

Benitez, J. A. ^{[1
]}

Beri, S. B. ^{[33
]}

Bernardi, G. ^{[20
,21
]}

Bernhard, R. ^{[28
]}

Bertram, I. ^{[50
]}

Besancon, M. ^{[22
]}

机构：

[1] Michigan State Univ, E Lansing, MI 48824 USA

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

[6] Univ Alberta, Edmonton, AB, Canada

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

[8] McGill Univ, Montreal, PQ, Canada

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

[10] Univ Sci & Technol China, Hefei, Peoples R China

[11] Univ Los Andes, Bogota, Colombia

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

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

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

[15] Univ San Francisco Quito, Quito, Ecuador

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

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

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

[19] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France

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

[21] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France

[22] SPP, Irfu, CEA, Saclay, France

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

[24] Univ Lyon, Lyon, France

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

[26] Univ Aachen, Rhein Westfal TH Aachen, Phys Inst A 3, D-5100 Aachen, Germany

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

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

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

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

[31] Univ Munich, Munich, Germany

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

[33] Panjab Univ, Chandigarh 160014, India

[34] Univ Delhi, Delhi 110007, India

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

[36] Univ Coll Dublin, Dublin 2, Ireland

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

[38] Sungkyunkwan Univ, Suwon, South Korea

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

[40] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[41] FOM Inst NIKHEF, Amsterdam, Netherlands

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

[43] Joint Inst Nucl Res, Dubna, Russia

[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：

PHYSICS LETTERS B | 2010年 / 682卷 / 4-5期

基金：

加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会; 瑞典研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1016/j.physletb.2009.11.038

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The DO Collaboration reports direct evidence for electroweak production of single top quarks through the t-channel exchange of a virtual W boson. This is the first analysis to isolate an individual single top quark production channel. We select events containing an isolated electron or muon, missing transverse energy, and two, three or four jets from 2.3 fb(-1) of p (p) over bar collisions at the Fermilab Tevatron Collider. One or two of the jets are identified as containing a b hadron. We combine three multivariate techniques optimized for the t-channel process to measure the t- and s-channel cross sections simultaneously. We measure cross sections of 3.14(-0.80)(+0.94) pb for the t-channel and 1.05 +/- 0.81 pb for the s-channel. The measured t-channel result is found to have a significance of 4.8 standard deviations and is consistent with the standard model prediction. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：363 / 369

页数：7

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