English

Evolution of high-mass diffraction from the light quark valence component of the pomeron

High Energy Physics - Phenomenology 2009-11-10 v2

Abstract

We analyze the contribution from excitation of the (qqˉ)(ffˉ),(qqˉ)g1...gn(ffˉ)(q\bar q)(f\bar f),(q\bar q)g_1...g_n(f\bar f) Fock states of the photon to high mass diffraction in DIS. We show that the large Q2Q^2 behavior of this contribution can be described by the DLLA evolution from the non-perturbative ffˉf\bar f valence state of the pomeron. Although of higher order in pQCD, the new contribution to high-mass diffraction is comparable to that from the excitation of the qqˉgq\bar q g Fock state of the photon.

Keywords

Cite

@article{arxiv.hep-ph/0408113,
  title  = {Evolution of high-mass diffraction from the light quark valence component of the pomeron},
  author = {N. N. Nikolaev and W. Schäfer and B. G. Zakharov and V. R. Zoller},
  journal= {arXiv preprint arXiv:hep-ph/0408113},
  year   = {2009}
}

Comments

12 pages, 2 figures, the oublished version. The slight numerical errors corrected, all conclusions are retained