Measurement of the triple gauge boson coupling α from W+W- production in e+e- collisions at √s = 161 GeV

OPAL Collaboration

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

This letter describes a measurement of one of the anomalous triple gauge boson couplings using the first data recorded by the OPAL detector at LEP2. A total of 28 W-pair candidates have been selected for an integrated luminosity of 9.89±0.06 pb- recorded at a centre-of-mass energy of 161 GeV. We use these data to place constraints upon the coupling parameter α. We analyse the predicted variation of the total cross-section for all observed channels and the distribution of kinematic variables in the semileptonic decay channels. We measure αwφ to be -0.61+0.73 -0.61 ±0.35, which is consistent with the Standard Model expectation of zero.

Original languageEnglish
Pages (from-to)147-157
Number of pages11
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume397
Issue number1-2
DOIs
StatePublished - 27 Mar 1997
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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