Exclusive High Mass Di-leptons in CDF

نویسنده

  • Michael Albrow
چکیده

In the Collider Detector at Fermilab, CDF, we have measured central exclusive production, p + p̄ → p + X + p̄, where X is a pair of leptons or photons and nothing else. In this talk I focus on central masses M(X) > 8 GeV/c. We measured QED production γγ → ee, μμ up to M(X) = 75 GeV/c, and candidates for photoproduction of Upsilons, γIP → Y (1S), Y (2S), Y (3S). I report a search for exclusive photoproduction of Z-bosons, and the status of searches for exclusive two-photons: p+ p̄ → p+ γγ+ p̄. These measurements constrain the cross section σ(p+ p → p+H + p) at the LHC.

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تاریخ انتشار 2009