A precision measurement of electroweak parameters in neutrino-nucleon scattering

被引：88

作者：

McFarland, KS

Arroyo, CG

King, BJ

de Barbaro, L

de Barbaro, P

Bazarko, AO

Bernstein, RH

Bodek, A

Bolton, T

Budd, H

Bugel, L

Conrad, J

Drucker, RB

Harris, DA

Johnson, RA

Kim, JH

Kinnel, T

Lamm, MJ

Lefmann, WC

Marsh, W

McNulty, C

Mishra, SR

Naples, D

Quintas, PZ

Romosan, A

Sakumoto, WK

Schellman, H

Sciulli, FJ

Seligman, WG

Shaevitz, MH

Smith, WH

Spentzouris, P

Stern, EG

Vakili, M

Yang, UK

Yu, J

Zeller, GP

机构：

[1] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[2] Univ Cincinnati, Cincinnati, OH 45221 USA

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

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

[5] Northwestern Univ, Evanston, IL 60208 USA

[6] Univ Oregon, Eugene, OR 97403 USA

[7] Univ Rochester, Rochester, NY 14627 USA

[8] Univ Wisconsin, Madison, WI 53706 USA

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 1卷 / 3-4期

关键词：

D O I：

10.1007/s100520050099

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The CCFR collaboration reports a precise measurement of electroweak parameters derived from the ratio of neutral-current to charged-current cross-sections in neutrino-nucleon scattering at the Fermilab Tevatron. We determine sin(2) theta(W)((on-shell)) = 0.2236 +/- 0.0028(expt.) +/- 0.0030(model) for M-top = 175 GeV, M-Higgs = 150 GeV. This is equivalent to M-W = 80.35+/-0.21 GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional vvqq contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.

引用

页码：509 / 513

页数：5

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