Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-11-03
Acta Phys.Polon.B26:2005-2038,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
36 pages, with 42 ps figures in the text. Lectures presented by Alan R. White at XXXVth Cracow School of Theoretical Physics `
Scientific paper
We present the BFKL equation as a reggeon Bethe-Salpeter equation and discuss the use of reggeon diagrams to obtain 2-2 and 2-4 reggeon interactions at $O(g^4)$. We then outline the dispersion theory basis of multiparticle $j$-plane analysis and describe how a gauge theory can be studied by combining Ward identity constraints with the group structure of reggeon interactions. The derivation of gluon reggeization, the $O(g^2)$ BFKL kernel, and $O(g^4)$ corrections, is described within this formalism. We give an explicit expression for the $O(g^4)$ forward ``parton'' kernel in terms of logarithms and evaluate the eigenvalues. A separately infra-red finite component with a holomorphically factorizable spectrum is shown to be present and conjectured to be a new leading-order partial-wave amplitude. A comparison is made with Kirschner's discussion of $O(g^4)$ contributions from the multi-Regge effective action.
Coriano' Claudio
White Alan R.
No associations
LandOfFree
$t$-Channel Unitarity Construction of Small-x Kernels does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with $t$-Channel Unitarity Construction of Small-x Kernels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $t$-Channel Unitarity Construction of Small-x Kernels will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-88072