Cross-sections and Multiplicity Distributions for $K^+ p$ Interactions at 70-{GeV}/$c$

Barth, M. ; De Clercq, C. ; De Wolf, E. ; et al.
Z.Phys.C 2 (1979) 285, 1979.
Inspire Record 141693 DOI 10.17182/hepdata.2107

Cross sections and charged multiplicity distributions forK+p interactions at 70 GeV/c are presented and compared withK+p data at other energies. Comparisons are also made with available π+p,pp, andK−p data.

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Inclusive $\Lambda$ and $\bar{\Lambda}$ Production in $K^+ p$ Interactions at 70-{GeV}/$c$

The Brussels-CERN-Genoa-Mons-Nijmegen-Serpukhov collaboration Barth, M. ; De Clercq, C. ; De Wolf, E.A. ; et al.
Z.Phys.C 10 (1981) 205, 1981.
Inspire Record 166163 DOI 10.17182/hepdata.2217

Inclusive and semi-inclusive production of Λ and\(\bar \Lambda\) inK+p interactions is studied at an incident momentum of 70 GeV/c. Cross sections and single particle distributions are presented and compared with data at lower energies. Scaling is observed between 32 and 70 GeV/c in the Feynmanx variable in the target and the beam fragmentation regions for Λ and\(\bar \Lambda\) inclusive production respectively. An increase of Λ (\(\bar \Lambda\)) production is observed in the beam (target) fragmentation regions, whereas the data at 70 and 32 GeV/c are reasonably close in the central region. The dependence of the Λ(\(\bar \Lambda\)) polarization as a function ofx is measured and found to be in general agreement with the results at 32 GeV/c. The (Λ\(\bar \Lambda\)) pair production cross section increases significantly from 32 to 70 GeV/c. The Λ and\(\bar \Lambda\) production associated with an identified proton is also studied.

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Inclusive Strange Particle Production in $\pi^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Borovikov, A.A. ; et al.
Nucl.Phys.B 165 (1980) 1-18, 1980.
Inspire Record 141734 DOI 10.17182/hepdata.8000

The production of K s 0 , Λ and Λ is measured in π + p interactions at 32 GeV/ c . The total inclusive cross sections are found to be 2.07±0.14, 1.00±0.10 and 0.14±0.04 mb, respectively. The energy dependence of total inclusive cross sections and inclusive distributions is discussed and a comparison is made with p, p , K + and K − induced reactions. We find that the factorization hypothesis is satisfied for the inclusive reactions π + p→ Λ X and K + p→ Λ X. Multi-strange-particle production is similar in π + p and K + p interactions at 32 GeV/ c . There is evidence for beam fragmentation in Λ production. The hierarchy of Λ inclusive cross sections in p , K + , π + and K − induced reactions at 32 GeV/ c is qualitatively explained by a quark recombination model. The cross sections for inclusive K ∗ + (892) and Σ + (1385) production in 32 GeV/ c π + p interactions are 1.07±0.57 mb and 0.19±0.08 mb, respectively.

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Neutral Pion Production in $K^+ p$ Interactions at 32-{GeV}

The French-Soviet & CERN-Soviet collaborations Azhinenko, I.V. ; Belokopytov, Yu.A. ; Borovikov, A.A. ; et al.
Nucl.Phys.B 162 (1980) 61-78, 1980.
Inspire Record 131232 DOI 10.17182/hepdata.8076

Inclusive and semi-inclusive distributions of γ's and π 0 's in the reactions K + p → γ + X and K + p → π 0 + X at 32 GeV/ c are presented and discussed. When compared to the inclusive π − production, the π 0 cross section is found to be significantly higher in low | x | and p T regions. The data are compared with other experiments and quark fusion model predictions.

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ESTIMATED FROM GAMMA AND 2GAMMA SPECTRA.

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Inclusive Production of Pions and $\rho^0$ in $\pi^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Chliapnikov, P.V. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 628, 1980.
Inspire Record 143792 DOI 10.17182/hepdata.2720

None

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$D$ Meson Branching Ratios and Hadronic Charm Production Cross-sections

The LEBC-EHS collaboration Aguilar-Benitez, M. ; Allison, W.W.M. ; Bagnaia, P. ; et al.
Phys.Lett.B 135 (1984) 237-242, 1984.
Inspire Record 193696 DOI 10.17182/hepdata.30599

A determination of branching ratios for D meson decays into all charged particle final states is reported. The values obtained: (D ± → K ∓ π ± π ± /all D ± ) = (14 ± 6)% and ( D 0 /D 0 → K ± π ∓ π + π − /all D 0 /D 0 ) = (10 ± 4)%, are higher than those currently accepted. This result, if confirmed, implies a corresponding reduction in the accepted values for some total cross section measurements. Revised inclusive cross sections for D meson production in the forward hemisphere in π − p and pp interactions at 360 GeV/ c , are presented.

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A Comparison of Inclusive $\rho^0$, $\rho^+$ and $\Omega$ Production in $K^+ P$ Interactions at 250-{GeV}/c

The EHS/NA22 collaboration Adamus, M. ; Agababyan, N.M. ; Ajinenko, I.V. ; et al.
Phys.Lett.B 198 (1987) 292-296, 1987.
Inspire Record 254609 DOI 10.17182/hepdata.30078

Inclusive data are presented on ϱ 0 ,ϱ + and ω produced in k + p interactions at 250 GeV/ c , for ϱ + and ω for the first time in K + p experiment. In the forward CM hemisphere, the ϱ + , ϱ 0 and ω differential production rates are equal within errors, and remarkably similar to muon-inelastic scattering data on ϱ 0 and ω at 280 GeV/ c .

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Strangeness Suppression and Inclusive $\phi$ and $K^*$0 Production in $K^+ P$ Interactions at 250-{GeV}/c

The EHS - NA22 collaboration Adamus, M. ; Agababyan, N.M. ; Ajinenko, I.V. ; et al.
Phys.Lett.B 198 (1987) 427-432, 1987.
Inspire Record 254217 DOI 10.17182/hepdata.30075

We present inclusive ¶ and K *0 (892) cross sections and Feynman x -spectra in K + p collisions at 250 GeV/ c . In the K + fragmentation region, x > 0.2, the ratio of ¶ to K *0 (892) is used to estimate the strangeness suppression factor λ , with the result γ =0.17 ± 0.02 (stat ± 0.01 (syst). We see no evidence for an energy dependence of λ in the CM energy range 7.8 ≤ s ≤21.7 GeV.

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RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

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Suppression of Valence Quark Recombination in $\pi^+$ Fragmentation Into $\rho^+$

The EHS/NA22 collaboration Adamus, M. ; Azhinenko, I.V. ; Belokopytov, Yu.A. ; et al.
Phys.Lett.B 183 (1987) 425, 1987.
Inspire Record 238678 DOI 10.17182/hepdata.30207

We present inclusive ϱ ±,0 and ω cross sections in the beam fragmentation region of π + p interactions at 250 GeV/ c . The near equality of the ϱ + and ϱ 0 cross sections implies suppression of valence quark recombination in forward vector meson production.

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GENERAL FEATURES OF MULTIPARTICLE REACTIONS K+ p ---> K+ p 3 pi+ 3 pi- AND K+ p ---> K+ p 4 pi+ 4 pi- at 32-GeV/c

The USSR-CERN collaboration Azhinenko, I.V. ; Belokopytov, Yu.A. ; Bryzgalov, V.V. ; et al.
Sov.J.Nucl.Phys. 37 (1983) 883, 1983.
Inspire Record 181652 DOI 10.17182/hepdata.41139

None

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FORWARD-BACKWARD ASYMMETRY OF PARTICLE ... PRODUCTION ENCODED IN THIS TABLE AS (SIG(C=... FORW)-SIG(C=... BACKW))/(SIG(C=... FORW)+SIG(C=... BACKW)).

FORWARD-BACKWARD ASYMMETRY OF PARTICLE ... PRODUCTION ENCODED IN THIS TABLE AS (SIG(C=... FORW)-SIG(C=... BACKW))/(SIG(C=... FORW)+SIG(C=... BACKW)).

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