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Large-pT protons from constituent diquark scattering
1984 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 149, no 6, p. 509-513Article in journal (Refereed) Published
Abstract [en]

Recent data from the CERN ISR on the fractional proton yield in pp collisions are explained within the Stockholm diquark model. Describing the proton as a u(ud)0 system, the observed high magnitude and fall-off pT, θ and √s of the proton yield are natural consequences of constituent diquark elastic scattering. The pT and θ dependence favour a value of around 10 GeV2/c2 for the size parameter in the diquark form factor, corresponding to a diquark rms radius of around 0.2 fm. This is consistent with earlier results of the model applied to deep inelastic lepton-nucleon scattering and e+e- annihilation

Abstract [en]

Recent data from the CERN ISR on the fractional proton yield in pp collisions are explained within the Stockholm diquark model. Describing the proton as a u(ud)0 system, the observed high magnitude and fall-off pT, θ and √s of the proton yield are natural consequences of constituent diquark elastic scattering. The pT and θ dependence favour a value of around 10 GeV2/c2 for the size parameter in the diquark form factor, corresponding to a diquark rms radius of around 0.2 fm. This is consistent with earlier results of the model applied to deep inelastic lepton-nucleon scattering and e+e− annihilation

Place, publisher, year, edition, pages
1984. Vol. 149, no 6, p. 509-513
National Category
Other Physics Topics
Research subject
Fysik
Identifiers
URN: urn:nbn:se:ltu:diva-6565DOI: 10.1016/0370-2693(84)90377-0Local ID: 4cd447c0-e91f-11db-b9a9-000ea68e967bOAI: oai:DiVA.org:ltu-6565DiVA: diva2:979451
Note
Upprättat; 1984; 20070412 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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