Production of gauge bosons at the Tevatron

Gerber, C. E.

doi:10.1016/S0920-5632(97)00981-X

Production of gauge bosons at the Tevatron

Conference · Tue Apr 01 04:00:00 EST 1997 · Nucl.Phys.B Proc.Suppl.

DOI:https://doi.org/10.1016/S0920-5632(97)00981-X· OSTI ID:572824

^[1]

Fermilab

The CDF and DØ collaborations have used recent data taken at the Tevatron to perform QCD tests with W and Z bosons decaying leptonically. DØ measures the production cross section times branching ratio for W and Z bosons and determines the branching ratio B ( W → lν ) = (10.43 ± 0.44)% ( l = e , μ ). This also gives an indirect measurement of the total width of the W boson: Г W = 2.16 ± 0.09 GeV. The W cross section times branching ratio into tau leptons is measured to be σ( p p → W + X)B(W → τν) = 2.38 ± 0.13 nb, from which the ratio of the coupling constants is determined: g τ W g e W = 1.004 ± 0.019 ± 0.026 . DØ's measurement of the differential dσ dP T distribution for the Z boson decaying to electrons, discriminates between different phenomenologic vector boson production models. CDF measures the cross section for the Drell-Yan continuum, and extracts improved limits on compositeness scales for quarks and leptons of Λ ql ∼ 3 − 6 TeV, depending on the model. Studies of W + Jet production at CDF and DØ find that the QCD prediction underestimates the production rate of W + 1 Jet events by about a factor of 2 as measured by both collaborations.

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:: 572824

Report Number(s):: FERMILAB-CONF-97-218-E; oai:inspirehep.net:446385

Conference Information:: Journal Name: Nucl.Phys.B Proc.Suppl. Journal Volume: 65

Country of Publication:: United States

Language:: English

References (10)

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