The triple pomeron interaction in the perturbative QCD
classification
✦ hep-ph
keywords
finitecontributioninteractionperturbativepomeronsqrttriplealthough
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The triple pomeron interaction is studied in the perturbative approach of BFKL-Bartels. At finite momentum transfers $\sqrt{-t}$ the contribution factorizes in the standard manner with a triple-pomeron vertex proportional to $1/\sqrt{-t}$. At $t=0$ the contribution is finite, although it grows faster with energy than for finite $t$ and does not factorize.
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