Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at √s=1.96 TeV using secondary vertex b tagging

被引：45

作者：

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

Abbott, B.

Abolins, M.

Acharya, B. S.

Adams, M.

Adams, T.

Aguilo, E.

Ahn, S. H.

Ahsan, M.

Alexeev, G. D.

Alkhazov, G.

Alton, A.

Alverson, G.

Alves, G. A.

Anastasoaie, M.

Ancu, L. S.

Andeen, T.

Anderson, S.

Andrieu, B.

Anzelc, M. S.

Arnoud, Y.

Arov, M.

Askew, A.

Asman, B.

Assis Jesus, A. C. S.

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.

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

[9] McGill Univ, Montreal, PQ, Canada

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

[11] Univ Los Andes, Bogota, Colombia

[12] Charles Univ Prague, 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, Ecuador

[16] Univ Clermont Ferrand, CNRS, IN2P3, Phys Corpusculaire Lab, Clermont Ferrand, France

[17] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France

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

[19] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91405 Orsay, France

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

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

[22] CEA, DAPNIA, Serv Phys Particules, Saclay, France

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

[24] Univ Haute Alsace, Mulhouse, France

[25] Univ Lyon 1, CNRS, Inst Phys Nucl, IN2P3, F-69622 Villeurbanne, France

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

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

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

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

[30] Univ Munich, Munich, Germany

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

[32] Panjab Univ, Chandigarh 160014, India

[33] Univ Delhi, Delhi 110007, India

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

[35] Univ Coll Dublin, Dublin 2, Ireland

[36] Korea Univ, Korea Detector Lab, Seoul 136701, South Korea

[37] Sungkyunkwan Univ, Suwon, South Korea

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

[39] NIKHEF H, FOM Inst, NL-1009 DB Amsterdam, Netherlands

[40] Univ Amsterdam, Amsterdam, Netherlands

[41] Radboud Univ Nijmegen, Nijmegen, Netherlands

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

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

[44] Inst High Energy Phys, Protvino, Russia

[45] Inst Nucl Phys, St Petersburg, Russia

[46] Lund Univ, Lund, Sweden

[47] Royal Inst Technol, Stockholm, Sweden

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

[49] Uppsala Univ, Uppsala, Sweden

[50] Univ Zurich, Inst Phys, Zurich, Switzerland

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 11期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.74.112004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report a new measurement of the t (t) over bar production cross section in p (beta) over bar collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon), missing transverse energy, and jets. Using 425 pb(-1) of data collected using the D0 detector at the Fermilab Tevatron Collider, and enhancing the t (t) over bar content of the sample by tagging b jets with a secondary vertex tagging algorithm, the t (t) over bar production cross section is measured to be sigma(p (t) over bar -> t (t) over bar +X)=6.6 +/- 0.9(stat+syst) +/- 0.4(lum) pb. This cross section is the most precise D0 measurement to date for t (t) over bar production and is in good agreement with standard model expectations.

引用

页数：25

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