Dynamics of PP collisions at small impact parameters, universality of cross sections of hadron-hadron collisions and critical phenomena at superhigh energies

L. Frankfurt, M. Strikman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Studies of the small x dynamics at HERA energies allow to quantify the range of momentum transfers and energies for which the strength of the interaction approaches the maximum strength allowed by unitarity in the gluon channel (black disk limit - BDL). Implications for the proton-proton interactions at collider energies (Tevatron, LHC) include a dominance of BDL up to transverse momenta of hadrons (jets) in the final state ∼ few GeV for collision at small impact parameters, and explanation of the proximity of the impact factor of pp interaction to one at small impact parameters, leading to universality of cross sections at superhigh energies. We discuss briefly the theoretical challenges in the applications of pQCD to small x phenomena, the similarity between small x physics and critical phenomena, and new QCD phenomena related to this puzzle.

Original languageEnglish (US)
Title of host publicationGribov Memorial Volume
Subtitle of host publicationQuarks, Hadrons, and Strong Interactions - Proceedings of the Memorial Workshop Devoted to the 75th Birthday of V N Gribov
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages25-34
Number of pages10
ISBN (Print)9812567569, 9789812567567
DOIs
StatePublished - 2006
EventGribov Memorial Workshop Devoted to the 75th Birthday of V N Gribov: Quarks, Hadrons, and Strong Interactions - Budapest, Hungary
Duration: May 22 2005May 24 2005

Publication series

NameGribov Memorial Volume: Quarks, Hadrons, and Strong Interactions - Proceedings of the Memorial Workshop Devoted to the 75th Birthday of V N Gribov

Other

OtherGribov Memorial Workshop Devoted to the 75th Birthday of V N Gribov: Quarks, Hadrons, and Strong Interactions
CountryHungary
CityBudapest
Period5/22/055/24/05

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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