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- Title
Diffractive hadron production at ultrahigh energies.
- Authors
Anisovich, V. V.; Matveev, M. A.; Nikonov, V. A.
- Abstract
Diffractive production is considered in the ultrahigh energy region where pomeron exchange amplitudes are transformed into black disk ones due to rescattering corrections. The corresponding corrections in hadron reactions h1 + h3 → h1 + h2 + h3 with small momenta transferred (q21→1 ∼ m2/ ln2 s, q23→3 ∼ m2/ ln2 s) are calculated in terms of the K-matrix technique modified for ultrahigh energies. Small values of the momenta transferred are crucial for introducing equations for amplitudes. The three-body equation for hadron diffractive production reaction h1 + h3 → h1 + h2 + h3 is written and solved precisely in the eikonal approach. In the black disk regime final state scattering processes do not change the shapes of amplitudes principally but dump amplitudes by a factor ~ ¼; initial state rescatterings result in additional factor ~ ½. In the resonant disk regime initial and final state scatterings damp strongly the production amplitude that corresponds to σinel/σtot → 0 at √s → ∞ in this mode.
- Subjects
HADRONS; DIFFRACTION gratings; POMERONS; NUCLEAR reactions; THREE-body problem
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2015, Vol 30, Issue 11, p1550054-1
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X15500542