2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 6, 321-330
DOI 10.1007/s1005298000909

The system of four reggeized gluons
and the three-pomeron vertex in the high colour limit

M. Braun

Dep. High-Energy Physics, University of St. Petersburg, 198904 St.Petersburg, Russia

Received: 26 June 1997 / Revised version: 28 February 1998 / Published online: 3 September 1998

Abstract
The amplitude for 4 interacting reggeized gluons is studied in the high-colour limit. The leading order amplitude is explicitly shown to reduce to a pair of reggeons, i.e to a single BFKL pomeron. The next-to-leading order diffractive amplitude is found to split into a double pomeron exchange and triple pomeron contribution. The obtained three-pomeron vertex is different from the originally proposed in [2].


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