Measurement of the W→τν production cross section in p(p)over-bar collisions at √s=1.8 TeV

被引：13

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adams, DL

Adams, M

Ahn, S

Akimov, V

Alves, GA

Amos, N

Anderson, EW

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Baringer, P

Bartlett, JF

Bassier, U

Belyaev, A

Beri, SB

Bernardi, G

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Blazey, G

Blessing, S

Boehnlein, A

Bojko, NI

Borcherding, F

Brandt, A

Breedon, R

Briskin, G

Brock, R

Brooijmans, G

Bross, A

Buchholz, D

Buescher, V

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

Casilum, Z

Castilla-Valdez, H

Chakraborty, D

机构：

[1] NYU, New York, NY 10003 USA

[2] Columbia Univ, New York, NY 10027 USA

[3] Univ Nebraska, Lincoln, NE 68588 USA

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

[5] Univ Michigan, Ann Arbor, MI 48109 USA

[6] Northeastern Univ, Boston, MA 02115 USA

[7] Boston Univ, Boston, MA 02215 USA

[8] Univ Maryland, College Pk, MD 20742 USA

[9] Louisiana Tech Univ, Ruston, LA 71272 USA

[10] Kansas State Univ, Manhattan, KS 66506 USA

[11] Univ Kansas, Lawrence, KS 66045 USA

[12] Iowa State Univ Sci & Technol, Ames, IA 50011 USA

[13] Purdue Univ, W Lafayette, IN 47907 USA

[14] Univ Notre Dame, Notre Dame, IN 46556 USA

[15] Indiana Univ, Bloomington, IN 47405 USA

[16] Northwestern Univ, Evanston, IL 60208 USA

[17] No Illinois Univ, De Kalb, IL 60115 USA

[18] Univ Illinois, Chicago, IL 60607 USA

[19] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[20] Univ Hawaii, Honolulu, HI 96822 USA

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

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

[23] Univ Calif Irvine, Irvine, CA 92697 USA

[24] Calif State Univ Fresno, Fresno, CA 93740 USA

[25] Univ Calif Davis, Davis, CA 95616 USA

[26] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[27] Univ Arizona, Tucson, AZ 85721 USA

[28] Univ Lancaster, Lancaster, England

[29] Inst High Energy Phys, Protvino, Russia

[30] Inst Nucl Phys, Krakow, Poland

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

[32] Seoul Natl Univ, Seoul, South Korea

[33] Tata Inst Fundamental Res, Mumbai, India

[34] Univ Delhi, Delhi 110007, India

[35] Panjab Univ, Chandigarh 160014, India

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

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

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

[39] Univ Paris 06, CNRS, LPHNE, IN2P3, Paris, France

[40] Univ Paris 07, CNRS, LPHNE, IN2P3, Paris, France

[41] Univ Grenoble 1, CNRS, IN2P3, Inst Nucl Sci, Grenoble, France

[42] Univ San Francisco, Quito, Ecuador

[43] Univ Los Andes, Bogota, Colombia

[44] Inst High Energy Phys, Beijing 100039, Peoples R China

[45] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

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

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

[48] Univ Rochester, Rochester, NY 14627 USA

[49] SUNY Stony Brook, Stony Brook, NY 11794 USA

[50] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.84.5710

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

of data collected with the DO detector during 1993-1995. We find that a(p (p) over bar --> W + X)B(W --> tau nu) = 2.22 +/- 0.09 (stat) +/- 0.10 (syst) +/- 0.10 (lum) nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, g(T)(W)/g(e)(W), be unity. We find g(T)(W)/g(e)(W) = 0.980 +/- 0.031, in agreement with lepton universality.

引用

页码：5710 / 5715

页数：6

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