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The inclusive cross section for the production ofKs0 mesons, Λ and$\bar \Lambda$ particles in proton-proton interactions at$\sqrt s= 63$ GeV is presented. The produced particles have been detected in the full phase space. Behaviour of the longitudinal and transversal depandences of the cross sections are discussed. The total production cross sections fors0 mesons and Λ particles was determined to$\sigma _{{\rm K}_S^0 }= (25.5 \pm 1.4)$ mb andσΛ=(7.8±1.2) mb respectively. A strong energy dependence of the production cross sections is observed.

6 data tables

Table 1

THE SIG(KS) ERROR INCLUDES THE UNCERTAINTY OF THE NORMALIZATION AND THE PT EXTRAPOLATION.

Table 2

No description provided.

Table 3

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Production of Vector and Tensor Mesons in Proton Proton Collisions at $\sqrt{s}=52$.5-{GeV}

The Annecy(LAPP)-CERN-College de France-Dortmund-Heidelberg-Warsaw collaboration Drijard, D. ; Fischer, H.G. ; Geist, Walter M. ; et al.

Z.Phys.C 9 (1981) 293, 1981.

Inspire Record 164535 DOI 10.17182/hepdata.14085

Inclusive production of ϱ0,f, andg0 mesons and ofKs0,K*0 (892), ϕ andK*0(1430)mesons has been measured at <y>∼2.6 and <pT>∼1.1 GeV/c in proton-proton interactions at$\sqrt s= 52.5$ GeV. The negative particle from the two-body decays of these resonances were identified by a threshold Cerenkov counter and used for triggering. Starting from the measured differential cross section, total inclusive cross sections for the vector and tensor mesons were determined using various parametrizations for they andpT dependence of the differential cross section. The experimental results are discussed in the framework of production models based on the parton picture. The strangeness suppresion factor λ=(0.30±0.10) due toSU(3) symmetry breaking of the quark sea is derived.

1 data table

Table 1

No description provided.

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Strangeness enhancement in central S + S collisions at 200-GeV/nucleon.

Neutral Strange Particle Production in Proton Proton Collisions at $\sqrt{s}=63$-{GeV}

Production of Vector and Tensor Mesons in Proton Proton Collisions at $\sqrt{s}=52$.5-{GeV}