Observation of $$W^{+} W^{-}$$ Production in $$p \bar{p}$$ Collisions at 1.8-TeV

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1997

DOI:https://doi.org/10.2172/1372282· OSTI ID:1372282

Zhang, Liqun ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States)

A search for w+w- production in $$p\overline{p}$$ collisions at $$\sqrt{s}$$ = 1.8 TeV is presented. In a data sample of 108 $$pb^{-1}$$ recorded with the Collider Detector at Fermilab (CDF), five $$W^{+}W^{-}$$ candidates are observed in the dilepton channel $$W^{+}W^{-} \to \zeta^{+} \zeta^{-} \nu\overline{\nu}$$. We expect 3.53$$ \pm$$ 1.24 events from the electroweak $$W^{+}W^{-}$$ production and 1.21$$ \pm$$ 0.30 events from various backgrounds. The $$W^{+}W^{-}$$ production cross section is found to be $$\sigma(p\overline{p} \to W^{+}W^{-}$$) = $$10.2^{+6.3}_{-5.1}$$(stat) $$\pm$$ 1.6(syst) ph. Then limits on boson anomalous couplings are set at 95% confidence level.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1372282
• Report Number(s): FERMILAB-THESIS--1997-50; UMI--98-07860; 457484
• Country of Publication: United States
• Language: English

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