HEPData Search

Using annihilation in a calorimeter as a trigger on antiprotons, we have measured the relative production cross sections of p , Λ and Ξ at y∼0 in the transverse momentum range 1 to 2 GeV/ c in pp collisions at √ s =63 GeV. We investigate correlations between the antibaryons and associated produced particles, and find evidence for local baryon number conservation.

1 data table

Table 1

No description provided.

The Production of High Momentum Particles and Resonances in $p p$ Collisions at the {CERN} Intersecting Storage Rings

Bobbink, G.J. ; van Driel, M.A. ; Erne, F.C. ; et al.

Nucl.Phys.B 217 (1983) 11-30, 1983.

Inspire Record 181613 DOI 10.17182/hepdata.33961

Data are reported on the momentum distributions of Λ, Λ (1520), φ (1020), Λ and p , inclusively produced between 1° and 2° with respect to one of the primary proton beams at the CERN Intersecting Storage Rings. In addition, the decay angular distribution of the Λ(1520), the ratio of the cross sections for the production of Σ − (1385) and Σ + (1385) and the ratios among different charge states of the pairs Λπ , Λ K, Δ ++ (1232) π and ππ have been measured. These data are confronted with current ideas on fragmentation.

1 data table

Table 1

No description provided.

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

The CERN-Dortmund-Heidelberg-Warsaw collaboration Drijard, D. ; Fischer, H.G. ; Frehse, H. ; et al.

Z.Phys.C 12 (1982) 217, 1982.

Inspire Record 168038 DOI 10.17182/hepdata.2139

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.

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INCLUSIVE PRODUCTION OF NEUTRAL STRANGE PARTICLES BY 147-GeV/c PI+ K+ p INTERACTIONS IN HYDROGEN

Brick, D. ; Shapiro, A.M. ; Widgoff, M. ; et al.

Nucl.Phys.B 164 (1980) 1, 1980.

Inspire Record 156268 DOI 10.17182/hepdata.8251

Results are presented from a study of inclusive neutral strange particle production by a 147 GeV/ c tagged π + /K + /p beam in the Fermilab 30-inch hydrogen bubble chamber. The experiment made use of the proportional hybrid spectrometer system. Results are based on 995 K S 0 , 485 Λ, and 83 Λ found in a sample of 132 000 pictures. Cross sections are given for inclusive production of these particles by each of the three beam particles, and comparisons are made with measurements at other energies. Topological cross sections are also calculated, and KNO multiplicity scaling is investigated. Distributions are presented of invariant cross sections as functions of the Feynman scaling variable x and c.m. rapidity y . The transverse momentum-squared distributions with their fitted slopes are also given. Comparisons are made of the production characteristics for the three beam types.

3 data tables

Table 1

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

Anti-Baryon Production in the Central Region at the {ISR}

The Production of High Momentum Particles and Resonances in $p p$ Collisions at the {CERN} Intersecting Storage Rings

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

INCLUSIVE PRODUCTION OF NEUTRAL STRANGE PARTICLES BY 147-GeV/c PI+ K+ p INTERACTIONS IN HYDROGEN