Evidence for Parton kT Effects in High pT Particle Production

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dc.creatorFermilab E706 Collaboration
dc.creatorApanasevich, L.
dc.date1997-11-24
dc.date.accessioned2026-07-07T13:05:10Z
dc.date.available2026-07-07T13:05:10Z
dc.descriptionInclusive pizero and direct-photon cross sections in the kinematic range 3.5 < pT < 12 GeV/c with central rapidities are presented for 530 and 800 GeV/c proton beams and a 515 GeV/c pi- beam incident on beryllium targets. Current Next-to-Leading-Order perturbative QCD calculations fail to adequately describe the data for conventional choices of scales. Kinematic distributions from these hard scattering events provide evidence that the interacting partons carry significant initial-state parton transverse momentum (kT). Incorporating these kT effects phenomenologically greatly improves the agreement between calculations and the measured cross sections.
dc.description11 pages including 6 pages of figures with captions
dc.identifierhttps://arxiv.org/abs/hep-ex/9711017
dc.identifierhttp://arxiv.org/abs/hep-ex/9711017
dc.identifierPhys.Rev.Lett.81:2642-2645,1998
dc.identifierdoi:10.1103/PhysRevLett.81.2642
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227406
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEvidence for Parton kT Effects in High pT Particle Production
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