Measurement of triple gauge boson couplings from W+W- production at √s=172GeV

被引：23

作者：

Ackerstaff, K ^{[1
]}

Alexander, G

Allison, J

Altekamp, N

Anderson, KJ

Anderson, S

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Ball, AH

Barberio, E

Barlow, RJ

Bartoldus, R

Batley, JR

Baumann, S

Bechtluft, J

Beeston, C

Behnke, T

Bell, AN

Bell, KW

Bella, G

Bentvelsen, S

Bethke, S

Biebel, O

Biguzzi, A

Bird, SD

Blobel, V

Bloodworth, IJ

Bloomer, JE

Bobinski, M

Bock, P

Bonacorsi, D

Boutemeur, M

Bouwens, BT

Braibant, S

Brigliadori, L

Brown, RM

Burckhart, HJ

Burgard, C

Burgin, R

Capiluppi, P

Carnegie, RK

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Chrisman, D

Clarke, PEL

Cohen, I

机构：

[1] CERN, European Org Particle Phys, CH-1211 Geneva 23, Switzerland

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

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

[4] Carleton Univ, Ctr Res Particle Phys, Ottawa, ON K1S 5B6, Canada

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

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

[7] Albert Ludwigs Univ, Fak Phys, D-79104 Freiburg, Germany

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

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

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

[11] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[12] Univ London Univ Coll, London WC1E 6BT, England

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

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

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

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

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

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

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

[20] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[21] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 113, Japan

[22] Kobe Univ, Kobe, Hyogo 657, Japan

[23] Brunel Univ, Uxbridge UB8 3PH, Middx, England

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

[25] Univ Hamburg, DESY, Inst Expt Phys 2, D-22607 Hamburg, Germany

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

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

[28] Duke Univ, Dept Phys, Durham, NC 27708 USA

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

[30] Ludwigs Maximillian Univ, Sekt Phys, D-85748 Garching, Germany

[31] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England

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

[33] INFN, I-40126 Bologna, Italy

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

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

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

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

[38] NYU, Dept Phys, New York, NY 10003 USA

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 2卷 / 04期

关键词：

D O I：

10.1007/s100520050164

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：

We present measurements of triple gauge boson coupling parameters using data recorded by the OPAL detector at LEP2 at a centre-of-mass energy of 172 GeV. A total of 120 W-pair candidates has been selected in the q (q) over bar q (q) over bar, q (q) over bar l (v) over bar(l) and l (v) over bar(l)(l) over bar'v(l') decay channels, for an integrated luminosity of 10.4 pb(-1). We use these data to determine several different anomalous coupling parameters using the measured cross-section and the distributions of kinematic variables. We measure alpha(B phi)=0.35(-1.07)(+1.29) +/- 0.38, alpha(W phi)=0.00(-0.26)(+0.30) +/- 0.11 alpha(w) = 0.18(-0.47)(+0.49) +/- 0.23, Delta g(1)(z) = -0.03(-0.37)(+0.40) +/- 0.14, Delta kappa(gamma)((HISZ)) = 0.03(-0.51)(+0.55) +/- 0.20, and Delta kappa = 0.03(-0.46)(+0.49) +/- 0.21. Combining the alpha(W phi) result with our previous result obtained from the 161 GeV data sample we measure alpha(W phi) = -.0.08(-0.25)(+0.28) +/- 0.10. All of these measurements are consistent with the Standard Model.

引用

页码：597 / 606

页数：10

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