WW production cross section measurement and limits on anomalous trilinear gauge couplings at √(s) = 1.96-TeV

Thesis/Dissertation · Tue Apr 01 00:00:00 EDT 2008

DOI:https://doi.org/10.2172/935248· OSTI ID:935248

Cooke, Michael P. ^[1]

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1. Rice Univ., Houston, TX (United States)

The cross section for WW production is measured and limits on anomalous WWγ and WWZ trilinear gauge couplings are set using WW → ee/eμ/μμ events collected by the Run II D0 detector at the Fermilab Tevatron Collider corresponding to 1 fb^-1 of integrated luminosity at √s = 1.96 TeV. Across the three final states, 108 candidate events are observed with 40.8± 3.8 total background expected, consistent with σ(p$$\bar{p}$$ → WW) = 11.6 ± 1.8(stat) ± 0.7(syst) ± 0.7(lumi) pb. Using a set of SU(2)_L Ⓧ U(1)_Y conserving constraints, the one-dimensional 95% C.L. limits on trilinear gauge couplings are -0.63 < Δκ_γ< 0.99, -0.15 < Λ_γ < 0.19, and -0.14 < Δg₁^Z < 0.34.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 935248
• Report Number(s): FERMILAB-THESIS-2008-23; TRN: US0804167
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
FERMILAB TEVATRON
LUMINOSITY
PRODUCTION
Experiment-HEP