Multigap diffraction at CDF

Abstract

We present a study of $\bar{p}p$ collisions with a leading antiptoton and a rapidity gap in addition to that associated with the antiproton. The second gap is either within the region available to the proton dissociation products, $\bar{p}+p\to (\bar{p}+gap)+X+gap+Y$, or adjacent to the outgoing proton $\bar{p}+p\to (\bar{p}+gap)+X+(gap+p)$. Results are reported for two-gap to one-gap event ratios and compared with one-gap to no-gap ratios and with theoretical expectations.

Comments: 4 pages, LaTex; presented at Moriond-2002 for the CDF Collaboration