Evidences for two scales in hadrons

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dc.creatorKopeliovich, B. Z.
dc.creatorPotashnikova, I. K.
dc.creatorPovh, B.
dc.creatorSchmidt, Ivan
dc.date2007-08-27
dc.date.accessioned2026-07-07T11:42:04Z
dc.date.available2026-07-07T11:42:04Z
dc.descriptionSome unusual features observed in hadronic collisions at high energies can be understood assuming that gluons in hadrons are located within small spots occupying only about 10% of the hadron's area. Such a conjecture about the presence of two scales in hadrons helps to explain: why diffractive gluon radiation so much suppressed; why the triple-Pomeron coupling shows no t-dependence; why total hadronic cross sections rise with energy so slowly; why diffraction cone shrinks so slowly, and why $α^\prime_P\llα^\prime_R$; why the transition from hard to soft regimes in the structure functions occurs at rather large $Q^2$; why the observed Cronin effect at collider energies is so weak; why hard reactions sensitive to primordial parton motion (direct photon, Drell-Yan dileptons, heavy flavors, back-to-back di-hadrons, seagull effect, etc.) demand such a large transverse momenta of the projectile partons, which is not explained by NLO calculations; why the onset of nuclear shadowing for gluons is so much delayed compared to quarks, and why shadowing is so weak.
dc.description15 pages, 15 figures
dc.identifierhttps://arxiv.org/abs/0708.3636
dc.identifierhttp://arxiv.org/abs/0708.3636
dc.identifierPhys.Rev.D76:094020,2007
dc.identifierdoi:10.1103/PhysRevD.76.094020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200757
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEvidences for two scales in hadrons
dc.typetext

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