Inclusive cross section ratios in highp T proton-proton scattering at ISR energies | Zendy

A. Breakstone | Zendy; R. Campanini | Zendy; H. B. Crawley | Zendy; M. Cuffiani | Zendy; G. M. Dallavalle | Zendy; M.M. Deninno | Zendy; K. Doroba | Zendy; D. Drijard | Zendy; F. Fabbri | Zendy; A. Firestone | Zendy; Hubertus Fischer | Zendy; H. Frehse | Zendy; W. Geist | Zendy; H. Fl�ge | Zendy; L. Geßwein | Zendy; P. Giacomelli | Zendy; R. Gokieli | Zendy; M. Gorbics | Zendy; M. Górski | Zendy; P. Hanke | Zendy; M. Heiden | Zendy; W. Herr | Zendy; D. Isenhower | Zendy; E.-E. Kluge | Zendy; J. Lamsa | Zendy; T. Lohse | Zendy; R. Mankel | Zendy; W. T. Meyer | Zendy; T. Nakada | Zendy; M. Panter | Zendy; A. Putzer | Zendy; K. Rauschnabel | Zendy; B. Rensch | Zendy; F. Rimondi | Zendy; M. Schmelling | Zendy; G. P. Siroli | Zendy; R. Sosnowski | Zendy; M. Szczekowski | Zendy; O. Ullaland | Zendy; D. Wegener | Zendy; R. Yeung | Zendy

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Inclusive cross section ratios in highp T proton-proton scattering at ISR energies

Author(s) -

A. Breakstone,

R. Campanini,

H. B. Crawley,

M. Cuffiani,

G. M. Dallavalle,

M.M. Deninno,

K. Doroba,

D. Drijard,

F. Fabbri,

A. Firestone,

Hubertus Fischer,

H. Frehse,

W. Geist,

H. Fl�ge,

L. Geßwein,

P. Giacomelli,

R. Gokieli,

M. Gorbics,

M. Górski,

P. Hanke,

M. Heiden,

W. Herr,

D. Isenhower,

E.-E. Kluge,

J. Lamsa,

T. Lohse,

R. Mankel,

W. T. Meyer,

T. Nakada,

M. Panter,

A. Putzer,

K. Rauschnabel,

B. Rensch,

F. Rimondi,

M. Schmelling,

G. P. Siroli,

R. Sosnowski,

M. Szczekowski,

O. Ullaland,

D. Wegener,

R. Yeung

Publication year - 1987

Publication title -

zeitschrift für physik c

Language(s) - English

Resource type - Journals

eISSN - 1431-5858

pISSN - 0170-9739

DOI - 10.1007/bf01408444

Subject(s) - diquark , physics , proton , hadron , pion , parton , particle physics , nuclear physics , scattering , sigma , fragmentation (computing) , quantum mechanics , computer science , optics , operating system

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.