HEPData Search

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.

12 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Comparison of Strange Anti-baryon and Strange Meson Production in $K^+ p$ Interactions at 32-{GeV}/$c$

Chliapnikov, P.V. ; Gerdyukov, L.N. ; Khromova, G.N. ; et al.

Z.Phys.C 12 (1982) 99, 1982.

Inspire Record 167341 DOI 10.17182/hepdata.10880

New experimental results are presented on inclusive production properties of$\bar \Sigma ^{ *+ } $(1385) and$\bar \Sigma ^{ *+ } $(1385) inK+p interactions at 32 GeV/c. The analysis is based on significantly larger statistics than previously available. A comparison is also made of invariantx-distributions ofK0/$\bar K^0 $,$\bar \Lambda $ and$\bar \Xi ^ +$ and of$\bar \Sigma ^{ *\pm } $(1385) andK*+(892). These spectra exhibit regularities expected from the quark-recombination picture when it is assumed that the strange mesons and antibaryons are produced off the strange$\bar s$-valence-quark in the incidentK+ meson. Transverse momentum distributions are also presented forK*+(892) and$\bar \Sigma ^{ *\pm } $(1385) and found to be very similar. The results on strange antibaryon average multiplicities disagree strongly with a recent version of the additive quark model.

32 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

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

No description provided.

Table 2

No description provided.

Table 3

No description provided.