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English

Observation of Diffractive b-Quark Production at the Fermilab Tevatron

ContributorsCDF Collaboration
Published inPhysical review letters, vol. 84, no. 2, p. 232-237
Publication date2000
Abstract

We report a measurement of the fraction of b quarks produced diffractively in p¯p collisions at s√=1.8 TeV. Diffraction is identified by the absence of particles in a forward pseudorapidity region. From events with an electron of transverse momentum 9.5<20 GeV/ c within the pseudorapidity region |η|<1.1, the ratio of diffractive to total b-quark production rates is found to be Rb¯b=[0.62±0.19(stat)±0.16(syst)]%. This result is comparable in magnitude to corresponding ratios for W and dijet production but significantly lower than expectations based on factorization.

Citation (ISO format)
CDF Collaboration. Observation of Diffractive <em>b</em>-Quark Production at the Fermilab Tevatron. In: Physical review letters, 2000, vol. 84, n° 2, p. 232–237. doi: 10.1103/PhysRevLett.84.232
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ISSN of the journal0031-9007
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