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Inclusive Particle Production in $\pi^- N$ Interactions at High-energies

Abramowicz, H. ; Doroba, K. ; Kossakowski, R. ; et al.

Z.Phys.C 7 (1981) 199-208, 1981.

Inspire Record 166695 DOI 10.17182/hepdata.14106

Results on inclusive particle production in π−n interactions at 21, 205 and 360 GeV/c are presented. The invariant cross sections in both neutron fragmentation and central regions are found to be equal within errors to the corresponding cross sections for π−p collisions and exhibit the same energy dependence. A strong energy dependence of the invariant cross section ratios of negative and positive pions is observed. There is also an indication of transverse momentum dependence of these ratios. The η− correlations in the neutron fragmentation region show little variation with energy and are in agreement with the predictions of the naive quark recombination scheme.

1 data table

Table 1

DATA ON MULTIPLICITY ARE OBTAINED BY AVERAGING OVER ALL THE TOPOLOGIES EXCEPT THE ONE-PRONG ONE.

Charged Pion Production in 70-{GeV}/$c K^+ P$ Interactions

Barth, M. ; De Clercq, C. ; De Wolf, E.A. ; et al.

Z.Phys.C 7 (1981) 187-198, 1981.

Inspire Record 166694 DOI 10.17182/hepdata.14086

Inclusive charged pion production is studied in an exposure of BEBC, filled with hydrogen, to an incidentK+ beam of 70 GeV/c. Total cross sections for pion production and inclusive longitudinal and transverse momentum distributions of π−'s and of positive particles are presented and compared with data at lower energies. Earlier evidence for scaling in the fragmentation regions is confirmed. The central region π− cross section increases proportionally topLAB−1/4; positive particles show almost no energy dependence atx=0. Particle ratios π+/π− are studied as a function ofx andy* and a comparison with 70 GeV/cK−p data is made. Analysis of structure functions for (ππ) pairs and of particle production associated with π± triggers at large |x| in the context of quark/parton models, provides qualitative evidence for the diquark-quark structure of the proton.

2 data tables

Table 1

No description provided.

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Inclusive Production of Neutral Strange Particles in $\bar{P} P$ Interactions at 32-{GeV}/$c$. France-soviet Union and {CERN}-soviet-union Collaborations

Poiret, C. ; Grard, F. ; Windmolders, R. ; et al.

Z.Phys.C 11 (1981) 1-7, 1981.

Inspire Record 171896 DOI 10.17182/hepdata.2142

The inclusiveKn, ¶,and$\bar \Lambda$ production has been studied in a$\bar pp$ experiment performed in the Mirabelle bubble chamber at an incident beam momentum of 32.1 GeV/c. Total, topological and differential cross sections are presented and compared with those obtained at other energies. The invariant structure functions have been parametrised in the fragmentation region by a power law and are consistent with the expectations based on quark counting rules.

5 data tables

Table 1

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DIFFRACTIVE DISSOCIATION OF INCIDENT PROTONS IN THE REACTION p p ---> p pi+ pi- p AT 50-GeV/c MOMENTUM

Baloshin, O.N. ; Bolonkin, B.V. ; Barkov, B.P. ; et al.

ITEP-39-1981, 1981.

Inspire Record 165269 DOI 10.17182/hepdata.10018

None

28 data tables

Table 1

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Fission Cross-sections of Medium Weight and Heavy Nuclei Induced by 1-{GeV} Protons

Vaishnene, L.A. ; Andronenko, L.N. ; Kovshevnyi, G.G. ; et al.

Z.Phys.A 302 (1981) 143-148, 1981.

Inspire Record 171539 DOI 10.17182/hepdata.16613

Coincidence studies performed in 4π geometry with silicon detectors and parallel plate avalanche counters have been used to measure total fission cross sections of238U,232Th,209Bi,208Pb,197Au,natYb,natHo,natTb,natSm,natTe,natAg andnatNi nuclei induced by 1 GeV protons. The experimental results agree qualitatively with cascade-evaporation calculations.

1 data table

Table 1

No description provided.