Measurements of single top quark production cross sections and |Vtb| in p(p)over-bar collisions at √s=1.96 TeV

被引：36

作者：

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

Abbott, B. ^{[76
]}

Acharya, B. S. ^{[31
]}

Adams, M. ^{[52
]}

Adams, T. ^{[50
]}

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

Alkhazov, G. ^{[40
]}

Alton, A. ^{[64
]}

Alverson, G. ^{[63
]}

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

Aoki, M. ^{[51
]}

Arov, M. ^{[61
]}

Askew, A. ^{[50
]}

Asman, B. ^{[43
,44
]}

Atkins, S. ^{[61
]}

Atramentov, O. ^{[68
]}

Augsten, K. ^{[10
]}

Avila, C. ^{[8
]}

BackusMayes, J. ^{[83
]}

Badaud, F. ^{[13
]}

Bagby, L. ^{[51
]}

Baldin, B. ^{[51
]}

Bandurin, D. V. ^{[50
]}

Banerjee, S. ^{[31
]}

Barberis, E. ^{[63
]}

Baringer, P. ^{[59
]}

Barreto, J. ^{[4
]}

Bartlett, J. F. ^{[51
]}

Bassler, U. ^{[19
]}

Bazterra, V. ^{[52
]}

Bean, A. ^{[59
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[74
]}

Belanger-Champagne, C. ^{[43
,44
]}

Bellantoni, L. ^{[51
]}

Beri, S. B. ^{[29
]}

Bernardi, G. ^{[17
,18
]}

Bernhard, R. ^{[24
]}

Bertram, I. ^{[45
]}

Besancon, M. ^{[19
]}

Beuselinck, R. ^{[46
]}

Bezzubov, V. A. ^{[39
]}

Bhat, P. C. ^{[51
]}

Bhatnagar, V. ^{[29
]}

Blazey, G. ^{[53
]}

Blessing, S. ^{[50
]}

Bloom, K. ^{[67
]}

Boehnlein, A. ^{[51
]}

Boline, D. ^{[73
]}

Boos, E. E. ^{[38
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

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

[3] LAFEX, Ctr Brasileiro Pesquisas Fis, 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 Sci & Technol China, Hefei 230026, Peoples R China

[8] Univ Los Andes, Bogota, Colombia

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

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

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

[12] Univ San Francisco Quito, Quito, Ecuador

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

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

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

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

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

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

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

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

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

[22] Univ Lyon, Lyon, France

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

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

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

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

[27] Univ Munich, Munich, Germany

[28] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[29] Panjab Univ, Chandigarh 160014, India

[30] Univ Delhi, Delhi 110007, India

[31] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[32] Univ Coll Dublin, Dublin 2, Ireland

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

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

[35] Nikhef, Amsterdam, Netherlands

[36] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

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

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

[39] Inst High Energy Phys, Protvino, Russia

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

[41] ICREA, Barcelona, Spain

[42] IFAE, Barcelona, Spain

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

[44] Uppsala Univ, Uppsala, Sweden

[45] Univ Lancaster, Lancaster LA1 4YB, England

[46] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[47] Univ Manchester, Manchester M13 9PL, Lancs, England

[48] Univ Arizona, Tucson, AZ 85721 USA

[49] Univ Calif Riverside, Riverside, CA 92521 USA

[50] Florida State Univ, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 11期

基金：

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

关键词：

SEARCH; COUPLINGS; CHANNEL;

D O I：

10.1103/PhysRevD.84.112001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of production cross sections of single top quarks in p (p) over bar collisions at root s = 1.96 TeV in a data sample corresponding to an integrated luminosity of 5.4 fb(-1) collected by the D0 detector at the Fermilab Tevatron Collider. We select events with an isolated electron or muon, an imbalance in transverse energy, and two, three, or four jets, with one or two of them containing a bottom hadron. We obtain an inclusive cross section of sigma(p (p) over bar -> tb + X, tqb + X) = 3.43(-0.74)(+0.73) pb and use it to extract the CKM matrix element 0.79 < vertical bar V-tb vertical bar <= 1 at the 95% C.L. We also measure sigma(p<(p)over bar> -> tb + X) = 0.68(-0.35)(+0.38) pb and sigma(p (p) over bar -> tqb + X) = 2.86(-0.63)(+0.69) pb when assuming, respectively, tqb and tb production rates as predicted by the standard model.

引用

页数：11

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