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AVERAGE OVER ALL TARGETS.
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Axis error includes +- 0.0/0.0 contribution (?////RES-DEF(RES=DEL++,BACK=CORRECTED,DEF=1.08 < M(P PI+) < 1.8 GEV)//RES-DEF(RES=SIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(LAMDA PI+-) <2.0 GEV)//RES-DEF(RES=ASIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(ALAMDA PI+-) < 2.0< GEV)).
Axis error includes +- 0.0/0.0 contribution (?////RES-DEF(RES=DEL++,BACK=CORRECTED,DEF=1.08 < M(P PI+) < 1.8 GEV)//RES-DEF(RES=SIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(LAMDA PI+-) <2.0 GEV)//RES-DEF(RES=ASIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(ALAMDA PI+-) < 2.0< GEV)).
Axis error includes +- 0.0/0.0 contribution (?////RES-DEF(RES=DEL++,BACK=CORRECTED,DEF=1.08 < M(P PI+) < 1.8 GEV)//RES-DEF(RES=SIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(LAMDA PI+-) <2.0 GEV)//RES-DEF(RES=ASIG(1385P13)+-,BACK=CORRECTED,DEF=1.26 < M(ALAMDA PI+-) < 2.0< GEV)).
The production properties ofKs0,\(\bar \Lambda\) andK+p interactions at 32 GeV/c are investigated using the final statistics of the experiment. We present total and semi-inclusive cross sections and aver-age multiplicities. Estimates are given of the diffractive dissociation contributions to total and differential cross sections. Thex-,pT−, and transverse mass dependence of inclusive and semi-inclusive distributions is discussed as well as properties of “prompt”Ks0's. The ratio of “prompt”K890+ (K8900) to “prompt”K0 cross sections is measured to be 1.03±0.12 (0.98±0.17). From a comparison of\(\bar \Lambda\) production inK±p interactions at 32 GeV/c, we estimate a strange sea-quark suppression of 0.26 ±0.02. The double differential cross sections ofKs0's is studied as a function of Feynman-x andpT2, and a Triple-Regge fit performed. The data are compared in detail to versions of the Lund-model for low-pT hadronic collisions.
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EVENTS WITH IDENTIFIED PROTONS.
Results are presented on the inclusive production of π± mesons and protons in\(\bar p\)p interactions at an incident antiproton momentum of 32 GeV/c in the MIRABELLE bubble chamber, based on a sample of 55,000 inelastic events. The spectra of π+(π−) andp(\(\bar p\)) are separated in the whole kinematically admitted region of phase space by a statistical method. The semi-inclusive and inclusive cross sections and the main average characteristics of π andp production are calculated. The invariant differential cross sections are studied as functions of the Fevnman scaling variablex, the rapidity and the transverse momentum. Thex distribution of π± mesons in the proton fragmentation region does not show any significant contribution from quark exchange or annihilation processes. A possible contribution of hard quark scattering on mesons or baryons is observed for large transverse momenta.
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