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Limits on Anomalous WWγ Couplings from p ¯ p→Wγ+X Events at √s=1.8 TeV

Limits on Anomalous WWγ Couplings from p ¯ p→Wγ+X Events at √s=1.8 TeV
Limits on Anomalous WWγ Couplings from p ¯ p→Wγ+X Events at √s=1.8 TeV
We have measured the WWγ gauge boson coupling parameters using p ¯ p→ℓνγ+X ( ℓ=e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb−1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for p ¯ p→Wγ+X with p γ T>10 GeV/c and Rℓγ>0.7 is 11.3 +1.7 −1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are −0.93<Δκ<0.94 and −0.31<λ<0.29. Similar limits are set on the CP-violating coupling parameters.
3634-3639
Abachi, S.
f75d3b93-e1ad-4046-b051-e4bad090c9c5
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Abachi, S.
f75d3b93-e1ad-4046-b051-e4bad090c9c5
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Abachi, S. and Belyaev, Alexander (1997) Limits on Anomalous WWγ Couplings from p ¯ p→Wγ+X Events at √s=1.8 TeV. Physical Review Letters, 78, 3634-3639. (doi:10.1103/PhysRevLett.78.3634).

Record type: Article

Abstract

We have measured the WWγ gauge boson coupling parameters using p ¯ p→ℓνγ+X ( ℓ=e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb−1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for p ¯ p→Wγ+X with p γ T>10 GeV/c and Rℓγ>0.7 is 11.3 +1.7 −1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are −0.93<Δκ<0.94 and −0.31<λ<0.29. Similar limits are set on the CP-violating coupling parameters.

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Published date: 1997
Organisations: Physics & Astronomy

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Local EPrints ID: 411246
URI: http://eprints.soton.ac.uk/id/eprint/411246
PURE UUID: 7f6f69d0-bb96-445e-8459-25d4470c5f50
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 15 Jun 2017 16:33
Last modified: 10 Dec 2019 01:42

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Author: S. Abachi

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