Study of the $ZZ γ$ and $Z γ γ$ Couplings in $Z (ν ν) γ$ Production

Publisher Website

12 May 1997

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 78 (19) , 3640-3645
https://doi.org/10.1103/physrevlett.78.3640

Abstract

We have measured the

ZZ γ

and

Z γ γ

couplings by studying

13.1 {pb}^{- 1}

of

p \bar{p} \to E_{t} γ + X

data at

\sqrt{s} = 1.8 TeV

with the DØ detector at the Fermilab Tevatron Collider. This is the first study of hadronic

Z γ

production in the neutrino decay channel. Combining this measurement with our previous results using

Z \to ee

and

μ μ

yields the most stringent 95% C.L. limits to date on anomalous couplings:

| h_{30}^{Z} | < 0.4

,

| h_{40}^{Z} | < 0.06

(

Λ = 750 GeV

).

Keywords

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Version 1, 1997-02-22, ArXiv

This publication has 14 references indexed in Scilit:

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