Role of anomalous chromomagnetic interaction in Pomeron and Odderon structures and in gluon distribution

Details Role of anomalous chromomagnetic interaction in Pomeron and Odderon structures and in gluon distribution Role of anomalous chromomagnetic interaction in Pomeron and Odderon structures and in gluon distribution

2009-07-21

arxiv.org/abs/0907.3555v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 9 figures, references and one figure added, extended discussion

Scientific paper

We calculate the contribution arising from nonperturbative quark-gluon chromomagnetic interaction to the high energy total quark-quark cross section and to gluon distributions in nucleon. The estimation obtained within the instanton model of QCD vacuum leads to the conclusion that this type of interaction gives the dominating contribution to the Pomeron coupling with the light quarks and to gluon distribution in light hadrons at small virtualities of quarks and gluons. We argue that the Odderon, which is the $P=C=-1$ partner of Pomeron, is governed by the spin-flip component related to nonperturbative three-gluon exchange induced by anomalous quark-gluon chromomagnetic interaction.

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