HEPData Search

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.

27 data tables

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INCLUSIVE eta MESONS PRODUCTION BY POSITIVE HADRONS AT 10.5-GeV/c

Akimenko, S.A. ; Bannikov, A.V. ; Belousov, V.I. ; et al.

Sov.J.Nucl.Phys. 39 (1984) 411, 1984.

Inspire Record 191941 DOI 10.17182/hepdata.10652

None

12 data tables

Table 1

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Study of the A-dependence of the Inclusive Spectra of the $\rho^0$ and $\omega$ Mesons Produced by the $\pi^-$ Mesons at 43-{GeV}/$c$

Antipov, Yu.M. ; Bessubov, V.A. ; Budanov, N.P. ; et al.

Sov.J.Nucl.Phys. 37 (1983) 556, 1983.

Inspire Record 179545 DOI 10.17182/hepdata.41186

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9 data tables

Table 1

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$\rho^0$ and $\omega$ Meson Inclusive Production by 70-{GeV}/$c$ Protons on the Be Nuclei.

Antipov, Yu.M. ; Bessubov, V.A. ; Budanov, N.P. ; et al.

Sov.J.Nucl.Phys. 36 (1982) 829, 1982.

Inspire Record 177514 DOI 10.17182/hepdata.41184

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10 data tables

Table 1

THE RATIO SIG(RHO0)/SIG(OMEGA) IS FREE PARAMETER.

Table 2

THE RATIO SIG(RHO0)/SIG(OMEGA)=1. AND FIXED.

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Study of Inclusive Production of $\pi^\pm$ and Protons in $\bar{p} p$ Interactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Vlasov, E.V. ; Babintsev, V.V. ; Bumazhnov, V.A. ; et al.

Z.Phys.C 13 (1982) 95, 1982.

Inspire Record 176790 DOI 10.17182/hepdata.1191

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.

38 data tables

Table 1

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Study of Inclusive Production of Boson Resonances in $\bar{p} p$ Interactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Starchenko, E.A. ; Chekulaev, S.V. ; Galyaev, N.A. ; et al.

Z.Phys.C 16 (1983) 181, 1983.

Inspire Record 168177 DOI 10.17182/hepdata.22268

The inclusive production ofK*±(890), ρρ(770), ω0(780) andf0(1,270) mesons is studied in$\bar pp$ experiment at 32GeV/c in the MIRABELLE bubble chamber by the analysis of (K0π±) and (π+π−) invariant mass distributions. The inclusive cross sections are σ(K*±)=2.45±0.30 mb, σ(ρ0)=8.8 ±0.9 mb, σ(ω+)≃6.2 mb, and σ(f0)=2.2±0.7 mb. The C.M. longitudinal distribution of theK*±(890) is slightly shifted to the primary particles fragmentation regions; the ρ0 is produced more centrally. The studied mesons alone are responsible for 40% of final state poins. The production features of various resonances are compared with quark models predictions.

13 data tables

Table 1

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phi MESON INCLUSIVE PRODUCTION BY 70-GeV/c PROTONS

Antipov, Yu.M. ; Bessubov, V.A. ; Budanov, N.P. ; et al.

Phys.Lett.B 110 (1982) 326-328, 1982.

Inspire Record 166471 DOI 10.17182/hepdata.30975

Results of the experimental study of inclusive φ meson production off berillium nuclei by 70 GeV/ c protons in the beam fragmentation region x > 0.41 are presented. Fitting of the measured differential cross sections to the forms d σ d x ∼ (1 − x) n x and d σ d p 2 t ∼ exp (−bp 2 t ) gives the parameters n = 6.0 ± 1.7 and b = (2.4 ± 0.7) (GeV/ c ) −2 . In the framework of a quark-parton model the measured φ meson x -distribution suggests that in the region of x > 0.41 nearly 90% of the φ mesons are produced via a strange sea quark fusion. The ratio of the OZI-forbidden and OZI-allowed transition coupling constants has been found to be ten times smaller than the same ratio calculated from the partial decay widths. The total inclusive cross section is estimated to be σ (pN → φ X) = (0.7 ± 0.2) × 10 −27 cm 2 .

4 data tables

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INCLUSIVE PRODUCTION OF SIGMA+- (1385) HYPERONS IN ANTI-P P INTERACTIONS AT 32-GEV/C. (IN RUSSIAN)

Study of the inclusive production of strange boson resonances in anti-p p interactions at 32-GeV/c.

Reactions With Two Neutral Kaons Inclusive Production in $K^+ p$ Interactions at 32-{GeV}/$c$

Neutral Strange Particle Production in $K^+ p$ Interactions

INCLUSIVE eta MESONS PRODUCTION BY POSITIVE HADRONS AT 10.5-GeV/c

Study of the A-dependence of the Inclusive Spectra of the $\rho^0$ and $\omega$ Mesons Produced by the $\pi^-$ Mesons at 43-{GeV}/$c$

$\rho^0$ and $\omega$ Meson Inclusive Production by 70-{GeV}/$c$ Protons on the Be Nuclei.

Study of Inclusive Production of $\pi^\pm$ and Protons in $\bar{p} p$ Interactions at 32-{GeV}/$c$

Study of Inclusive Production of Boson Resonances in $\bar{p} p$ Interactions at 32-{GeV}/$c$

phi MESON INCLUSIVE PRODUCTION BY 70-GeV/c PROTONS