Measurement of charged current triple gauge boson couplings using W pairs at LEP

被引：46

作者：

Abbiendi, G ^{[1
]}

Ainsley, C

Åkesson, PF

Alexander, G

Allison, J

Amaral, P

Anagnostou, G

Anderson, KJ

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Bailey, I

Barberio, E

Barlow, RJ

Batley, RJ

Bechtle, P

Behnke, T

Bell, KW

Bell, PJ

Bella, G

Bellerive, A

Benelli, G

Bethke, S

Biebel, O

Boeriu, O

Bock, P

Boutemeur, M

Braibant, S

Brigliadori, L

Brown, RM

Buesser, K

Burckhart, HJ

Campana, S

Carnegie, RK

Caron, B

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Csilling, A

Cuffiani, M

Dado, S

De Roeck, A

De Wolf, EA

Desch, K

Dienes, B

Donkers, M

Dubbert, J

Duchovni, E

机构：

[1] Univ Bologna, Dipartmento Fis, I-40126 Bologna, Italy

[2] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[3] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[5] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[6] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[7] Carleton Univ, Ottawa Carleton Inst Phys, Dept Phys, Ottawa, ON K1S 5B6, Canada

[8] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland

[9] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[10] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[11] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany

[12] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[13] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[14] Queen Mary Univ London, London E1 4NS, England

[15] TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[16] UCL, London WC1E 6BT, England

[17] Univ Manchester, Schuster Lab, Dept Phys, Manchester M13 9PL, Lancs, England

[18] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[19] Univ Montreal, Phys Nucl Lab, Montreal, PQ H3C 3J7, Canada

[20] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

[21] CLRC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[22] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

[23] Tel Aviv Univ, Dept Phys & Astron, IL-69978 Tel Aviv, Israel

[24] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[25] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 1130033, Japan

[26] Kobe Univ, Kobe, Hyogo 6578501, Japan

[27] Weizmann Inst Sci, Particle Phys Dept, IL-76100 Rehovot, Israel

[28] Univ Hamburg, DESY, Inst Expt Phys, D-22607 Hamburg, Germany

[29] Univ Victoria, Dept Phys, Victoria, BC V8W 3P6, Canada

[30] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada

[31] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[32] Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

[33] Inst Nucl Res, H-4001 Debrecen, Hungary

[34] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[35] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[36] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[37] TRIUMF, Vancouver, BC V6T 2A3, Canada

[38] Inst Nucl Res, Debrecen, Hungary

[39] Univ Debrecen, Dept Expt Phys, Debrecen, Hungary

[40] MPI Extraterr Phys, Munich, Germany

[41] CERN, Div EP, CH-1211 Geneva 23, Switzerland

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

[43] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2004年 / 33卷 / 04期

关键词：

D O I：

10.1140/epjc/s2003-01524-6

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：

Triple gauge boson couplings are measured from W-pair events recorded by the OPAL detector at LEP at centre-of-mass energies of 183 - 209 GeV with a total integrated luminosity of 680 pb(-1). Only CP-conserving couplings are considered and SU(2) x U(1) relations are used, resulting in four independent couplings, k(gamma), g(1)(z), lambdagamma and g(5)(z). Determining each coupling in a separate fit, assuming the other couplings to take their Standard Model values, we obtain k(gamma) = 0.88(-0.08)(+0.09), g(1)(z) = 0.987 (-0.033),(+0.034) lambda(gamma) = -0.060(-0.033)(+0.034) and g(5)(z) = -0.04(-0.12)(+0.13), where the errors include both statistical and systematic uncertainties. Fits are also performed allowing some of the couplings to vary simultaneously. All results are consistent with the Standard Model predictions.

引用

页码：463 / 476

页数：14

共 50 条

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