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Inclusive charged particle cross-sections in full phase space from proton proton interactions at ISR energies

The Ames-Bologna-CERN-Dortmund-Heidelberg-Warsaw collaboration Breakstone, A. ; Crawley, H.B. ; Firestone, A. ; et al.
Z.Phys.C 69 (1995) 55-66, 1995.
Inspire Record 397393 DOI 10.17182/hepdata.12880

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132 data tables
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Inclusive Cross-section Ratios in High $p_T$ Proton Proton Scattering at {ISR} Energies

The Ames-Bologna-CERN-Dortmund-Heidelberg-Warsaw collaboration Breakstone, A. ; Campanini, R. ; Crawley, H.B. ; et al.
Z.Phys.C 35 (1987) 159, 1987.
Inspire Record 229926 DOI 10.17182/hepdata.15764

Ratios of inclusive cross sections σ(π+)/σ(π++K++p) and\(\sigma (\pi ^ -)/\sigma (\pi ^ -+ K^ -+ \bar p)\) were measured for proton-proton interactions with a highpT hadron in the final state around c.m.s. scattering angles θ≅20°, 20° and 45° at two ISR energies\(\sqrt s= 31\) Gev and 62 GeV. Results are shown as functions of transverse and longitudinal momentum and are compared with parton model predictions. The different dependences of positive and negative pion fractions atpT≅2–3 GeV/c on longitudinal momenta is similar to that observed in soft hadronic interactions at low values ofpT where the leading proton effect (diquark fragmentation) is known to contribute. The quantitative agreement of the data with diquark model predictions indicates the presence of diquark fragmentation also in highpT jets.

4 data tables
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