DIRECT MEASUREMENT OF THE W-GAMMA COUPLING AT THE CERN PBARP COLLIDER

DIRECT MEASUREMENT OF THE W-GAMMA COUPLING AT THE CERN PBARP COLLIDER

The process p̄p→evy+X is studied as √s=630 GeV The observed signal is used to extract a direct measurement of the parameters κ and λ which define the magnetic dipole and electric quadrupole moments of the W boson and therefore the WWγ coupling We find κ=1-2 2 +2 6 and λ=0-1 8 +1 7 and their 95% conf...

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Bibliographic Details
Main Authors: Alitti, J, Ambrosini, G, Ansari, R, Autiero, D, Bareyre, P, Bertram, I, Blaylock, G, Bonamy, P, Borer, K, Bourliaud, M, Buskulic, D, Carboni, G, Cavalli, D, Cavasinni, V, Cenci, P, Chollet, J, Conta, C, Costa, G, Costantini, F, Cozzi, L, Cravero, A, Curatolo, M, Dellacqua, A, Delprete, T, Dewolf, R
Format: Journal article
Published: 1992
Description
Summary:The process p̄p→evy+X is studied as √s=630 GeV The observed signal is used to extract a direct measurement of the parameters κ and λ which define the magnetic dipole and electric quadrupole moments of the W boson and therefore the WWγ coupling We find κ=1-2 2 +2 6 and λ=0-1 8 +1 7 and their 95% confidence limits - 3 5 < κ < 5 9 and -3 6 < λ < 3 5 The results are model independent and in good agreement with the standard model values, κ=1 and λ=0.

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