Diffractive W and Z Production at Tevatron

Details Diffractive W and Z Production at Tevatron Diffractive W and Z Production at Tevatron

2009-05-26

arxiv.org/abs/0905.4281v2

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 4 figures, Presented for the CDF collaboration at XLIVth Rencontres de Moriond, QCD and High Energy Interactions, La

Scientific paper

Preliminary results on diffractive W and Z production in proton-antiproton collisions at a c.m.s. energy of 1.96 TeV are presented and discussed. Differential cross sections are measured from data collected with the CDF-II detector at the Fermilab Tevatron collider using a Roman pot spectrometer that detects leading antiprotons. The ratio of diffractive to total W production rates (diffractive fraction) agrees with that measured by CDF in Run-I using a rapidity gap diffractive signature. The W and Z diffractive fractions are equal within the measurement uncertainties, which are dominated by a 20% statistical uncertainty in the diffractive Z measurement. Prospects for extending the diffractive W a nd Z studies at the Large Hadron Collider are discussed.

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