Measurement of triple gauge boson couplings at 172-GeV

Barate, R.; Buskulic, D.; Decamp, D.; Ghez, Philippe; Goy, C.; Lees, J.P.; Lucotte, A.; Minard, M.N.; Nief, J.Y.; Pietrzyk, B.

doi:10.1016/S0370-2693(98)00061-6

Measurement of triple gauge boson couplings at 172-GeV

ALEPH

Collaboration

•

R. Barate
(
- Annecy, LAPP
)

Dec, 1997

20 pages

Published in:

Phys.Lett.B 422 (1998) 369-383

DOI:

10.1016/S0370-2693(98)00061-6

Report number:

CERN-PPE-97-166,
FSU-SCRI-98-59

Experiments:

CERN-LEP-ALEPH

View in:

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Abstract: (Elsevier)

The triple gauge-boson couplings, α W Φ , α W and α B Φ , have been measured using 34 semileptonically and 54 hadronically decaying W + W − candidate events. The events were selected in the data recorded during 1996 with the ALEPH detector at 172 GeV, corresponding to an integrated luminosity of 10.65 pb −1 . The triple gauge-boson couplings have been measured using optimal observables constructed from kinematic information of W + W − events. The results are in agreement with the Standard Model expectation.

electron positron: colliding beams
electron positron: annihilation
W: pair production
W: leptonic decay
W: hadronic decay
coupling: (3gauge boson)
angular distribution
electroweak interaction: validity test
ALEPH
experimental results

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