Ataian, M.R.
Kaon-Proton Scattering
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pi0 and eta meson production in pi+ p and K+ p collisions at 250-GeV/c

The EHS/NA22 collaboration Atayan, M.R. ; Botterweck, F. ; Charlet, M. ; et al.
Z.Phys.C 54 (1992) 247-254, 1992.
Inspire Record 322980 DOI 10.17182/hepdata.14597

We report on a study of inclusiveπ0 and η meson production inπ+p andK+p interactions at 250 GeV/c beam momentum. The Feynman-x spectrum ofπ0 is very similar in shape and normalization to that of negatively charged particles produced in the same experiment. The results are compared with data at other energies and with FRITIOF model predictions. This model overestimates the η cross section by a factor of 2.5. It reproduces theπ0 cross section correctly, but predicts a too hardπ0x distribution.

15 data tables
Table 1

Data from Gamma Detectors only.

Table 2

Data from Gamma Detectors only.

Table 3

Data from RCBC only.

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A Study of double pomeron exchange in pi+ p and K+ p interactions at 250-GeV/c

The EHS/NA22 collaboration Atayan, M.R. ; Ajinenko, I.V. ; Belokopytov, Yu. A. ; et al.
Z.Phys.C 50 (1991) 353-360, 1991.
Inspire Record 29411 DOI 10.17182/hepdata.14985

Quasi-elastic scattering with central dipion cluster production is studied in π+p andK+p interactions at 250 GeV/c. The cross section of double pomeron exchange is obtained as σDPE(π+p →π+(π+π−)p)=24 ±5 µb and σDPE(K+p→K+(π+π−)p)=19 ±5 µb. The low energy pomeron-pomeron cross section is estimated for the first time.

6 data tables
Table 1

Numerical values supplied by W. Kittel.

Table 2

Numerical values supplied by W. Kittel.

Table 3

Numerical values supplied by W. Kittel.

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rivet Analysis
Charged Particle Production in $K^+ p$, $\pi^+ p$ and $p p$ Interactions at 250-{GeV}/$c$

The EHS/NA22 collaboration Adamus, M. ; Azhinenko, I.V. ; Ataian, M.R. ; et al.
Z.Phys.C 39 (1988) 311-329, 1988.
Inspire Record 265504 DOI 10.17182/hepdata.15620

None

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Strange and Nonstrange Baryon Production in $\pi^+ p$ and $K^+ p$ Interactions at 250-{GeV}/$c$

The EHS/NA22 collaboration Ajinenko, I.V. ; Atayan, M.R. ; Belokopytov, Yu. A. ; et al.
Z.Phys.C 44 (1989) 573, 1989.
Inspire Record 283744 DOI 10.17182/hepdata.15338

We present data on the production of the baryons Λ,\(\bar \Lambda \),p and of the baryon resonances Σ*+ (1385) and Δ++ (1232) inK+p and π+p interactions at 250 GeV/c. Results are given on total and semi-inclusive cross sections, Feynman-x spectra, transverse momentum distributions and Λ polarization. The data are compared with measurements at lower energies, with deep inclastic lepton nucleon data and with predictions of quark-parton models. The models underestimate Λ production in the central c.m. region, a feature also seen in recent heavy-ion data. This failure can be cured in JETSET 6.3 by adjustment of the di-quark break-up probability.

30 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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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.

4 data tables
Table 1

RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

Table 2

RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

Table 3

RESULTS AT 32 AND 70 GEV INCLUDED FOR COMPARISON.

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