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

The CERN-Soviet collaboration Ajinenko, I.V. ; Chliapnikov, P.V. ; Falaleev, V.P. ; et al.

Z.Phys.C 23 (1984) 307, 1984.

Inspire Record 193424 DOI 10.17182/hepdata.10722

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

Table 1

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A STUDY OF JET LIKE STRUCTURE OF LOW P(T) K- p AND anti-p p INTERACTIONS AT 32-GeV/c

The CERN-Soviet collaboration Babintsev, V.V. ; Bumazhnov, V.A. ; Gensch, U. ; et al.

IFVE-83-95, 1983.

Inspire Record 191940 DOI 10.17182/hepdata.10579

None

29 data tables

Table 1

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Study of Interference Correlation Between Likely Charged Pions in $\bar{p} p$ Interactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Babintsev, V.V. ; Bogolyubsky, M.Yu. ; Borovikov, A.A. ; et al.

Sov.J.Nucl.Phys. 38 (1983) 84, 1983.

Inspire Record 181321 DOI 10.17182/hepdata.41197

None

7 data tables

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GENERAL CHARACTERISTICS OF ANNIHILATION EXCLUSIVE REACTIONS IN anti-p p INTERACTIONS AT 32-GeV/c

The French-Soviet & CERN-Soviet collaborations Barth, M. ; Bogolyubsky, M.Yu. ; Chekulaev, S.V. ; et al.

Sov.J.Nucl.Phys. 36 (1982) 821, 1982.

Inspire Record 178552 DOI 10.17182/hepdata.41182

None

2 data tables

Table 1

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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

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Study of the Inclusive Reactions $K^- p \to p$ X at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Babintsev, V.V. ; Borovikov, A.A. ; Buschbeck, B. ; et al.

Nucl.Phys.B 183 (1981) 29-52, 1981.

Inspire Record 154721 DOI 10.17182/hepdata.7921

In a K − p experiment at 32 GeV/ c with a sensitivity of 6 ev/≈b the inclusive reaction K − p → p + X was studied in the kinematical region x < −0.3. Most of the protons in this region were identified by ionization. Correcting for losses of the very slow as well as of the fast protons in this region we obtained σ p ( x < −0.3) = 5.9 ± 0.2 mb. The double invariant differential cross sections of protons were analysed in terms of the variables x , p T 2 , and M 2 / s , t , and the contributions from separate peripheral mechanisms were analysed. A triple-Regge analysis was performed on the inclusive proton d 2 σ /d t d( M 2 / s ) distribution with | t | < 1.1 GeV 2 . The fit with an RRP term resulted in an effective trajectory for the exchanged reggeon lying somewhat lower than that for the leading meson trajectory. Inclusion in the fit of an additional ππp term showed that pion exchange is important in the triple-Regge region at small | t |.

2 data tables

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s CHANNEL AND t CHANNEL HELICITY CONSERVATION IN DIFFRACTIVE EVENTS OF THE REACTION K+ p ---> K+ pi+ pi- p AT 32-GeV/c

The CERN-Soviet collaboration Azhinenko, I.V. ; Barth, M. ; Belokopytov, Yu.A. ; et al.

Sov.J.Nucl.Phys. 32 (1980) 673, 1980.

Inspire Record 146409 DOI 10.17182/hepdata.41499

None

25 data tables

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DD IVENTS SELECTED BY THE RAPIDITY GAP METHOD.

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A Search for Three Particle Rapidity Correlations in $K^- p$ Interactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Bumazhnov, V.A. ; Gubaeva, M.M. ; Kruglov, N.S. ; et al.

Sov.J.Nucl.Phys. 32 (1980) 528-532, 1980.

Inspire Record 144640 DOI 10.17182/hepdata.18034

None

5 data tables

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A Study of the Structure of the Events With the Multiparticle Diffraction Dissociation in $K^- p$ Exclusive Reactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Arestov, Yu.I. ; Bogolyubsky, M.Yu. ; Levitsky, M.S. ; et al.

Sov.J.Nucl.Phys. 32 (1980) 353, 1980.

Inspire Record 144636 DOI 10.17182/hepdata.17869

None

22 data tables

Table 1

292+-7 MUB - CORRECTED VALUE FOR FIRST REACTION (SLOW PROTONS). M(P 4PI) <= 3.5 GEV FOR REACTIONS WITH FOUR PIONS.

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

A STUDY OF JET LIKE STRUCTURE OF LOW P(T) K- p AND anti-p p INTERACTIONS AT 32-GeV/c

Study of Interference Correlation Between Likely Charged Pions in $\bar{p} p$ Interactions at 32-{GeV}/$c$

GENERAL CHARACTERISTICS OF ANNIHILATION EXCLUSIVE REACTIONS IN anti-p p INTERACTIONS AT 32-GeV/c

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}/$c$

Study of the Inclusive Reactions $K^- p \to p$ X at 32-{GeV}/$c$

s CHANNEL AND t CHANNEL HELICITY CONSERVATION IN DIFFRACTIVE EVENTS OF THE REACTION K+ p ---> K+ pi+ pi- p AT 32-GeV/c

A Search for Three Particle Rapidity Correlations in $K^- p$ Interactions at 32-{GeV}/$c$

A Study of the Structure of the Events With the Multiparticle Diffraction Dissociation in $K^- p$ Exclusive Reactions at 32-{GeV}/$c$