An independent estimate of the triple-Pomeron coupling

de Oliveira, E.G.
Martin, A.D.
Ryskin, M.G.

Open link

Publication date

January 2011

DOI

10.1016/j.physletb.2010.10.057

Publisher

Elsevier B.V.

Abstract

AbstractThe value of the important triple-Pomeron coupling is estimated by an unorthodox procedure using the known diffractive parton distribution functions. The result is g3P≃0.2gN, where gN is the Pomeron–nucleon coupling. This is in excellent agreement with an independent determination, g3P≃0.2gN, previously obtained by analysing the available data in the triple-Regge region with absorptive effects taken into account

Extracted data

Zoller, V R

December 2004

Three pomerons are known to couple via the gluon loop and interactions of this kind which are respon...

Evaluation of the triple-Pomeranchukon-vertex η<SUB>PPP</SUB>(t) from experiment as a function of t

Rajaraman, R.

September 1971

We show that the squared coupling constant η<SUB>PPP</SUB>(t) connecting three Pomeranchukons, ...

On the triple pomeron vertex in perturbative QCD

Bartels, J. (Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik)
Ryskin, M.G. (St. Petersburg Inst. of Nuclear Physics, Gatchina (Russian Federation))
Istituto Nazionale di Fisica Nucleare (INFN), Bologna (Italy))
Vacca, G.P. (Bologna Univ. (Italy). Dipt. di Fisica
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

January 2002

We estimate the size of the triple Pomeron vertex in perturbative QCD and compare with the phenomeno...