Bounds on Anomalous Gauge Boson Couplings From Partial Z Widths at LEP

Details Bounds on Anomalous Gauge Boson Couplings From Partial Z Widths at LEP Bounds on Anomalous Gauge Boson Couplings From Partial Z Widths at LEP

1994-10-25

arxiv.org/abs/hep-ph/9410364v1

Nucl.Phys. B439 (1995) 3-22

Physics

High Energy Physics

High Energy Physics - Phenomenology

LATEX, 22 pages, 5 figures (appended as uuencoded compressed tar file), BNL-60949

Scientific paper

10.1016/0550-3213(95)00042-Q

We place bounds on anomalous gauge boson couplings from LEP data with particular emphasis on those couplings which do not contribute to $Z$ decays at tree level. We use an effective field theory formalism to compute the one-loop corrections to the $Z\rightarrow {\overline f} f$ decay widths resulting from non-standard model three and four gauge boson vertices. We find that the precise measurements at LEP constrain the three gauge boson couplings at a level comparable to that obtainable at LEPII and LHC.

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