Observation of diffractive W-boson production at the fermilab tevatron

CDF collaboration

Research output: Contribution to journalArticlepeer-review


We report the first observation of diffractively produced W bosons.In a sample of W → eν events produced in pp collisions at √s=1.8TeV, we find an excess of events with a forward rapidity gap, which is attributed to diffraction.The probability that this excess is consistent with nondiffractive production is 1.1×10−4 (3.8σ).The relatively low fraction of W+ jet events observed within this excess implies that mainly quarks from the Pomeron, which mediates diffraction, participate in W production.The diffractive to nondiffractive W production ratio is found to be RW=(1.15±0.55)%.

Original languageEnglish (US)
Pages (from-to)2698-2703
Number of pages6
JournalPhysical review letters
Issue number14
StatePublished - Apr 7 1997
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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