HEPData Search

Inclusive ϱ 0 and φ production is investigated in K + p interactions at 32 GeV/ c . Total and semi-inclusive ϱ 0 and φ cross sections, longitudinal and transverse momentum distributions, including 〈 P T versus x dependence are presented. No evidence for a sea-gull effect is observed. Comparison with quark models strongly suggests the possibility that a large fraction of the ϱ 0 and vector mesons are produced as fragmentation products of the incident particles. Study of uncorrelated π + π − pairs in the ϱ 0 mass range provides possible indirect evidence for the existence of diquarks in the proton.

39 data tables

Table 1

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Inclusive $K^$+ (892) and $K^$ (892) Production in $K^+ p$ Interactions at 32-{GeV}/c

The French-Soviet & CERN-Soviet collaborations Azhinenko, I.V. ; Bryzgalov, V.V. ; Gerdyukov, L.N. ; et al.

Z.Phys.C 5 (1980) 177, 1980.

Inspire Record 153557 DOI 10.17182/hepdata.71085

Total and semi-inclusive cross sections, longitudinal and transverse momentum distributions and spin density matrix elements of theK*+(892) andK*0(892) produced in the inclusive reactionsK+p→K*+(892)+X andK+p→K*0(892)+X at 32 GeV/c are studied in detail. The inclusive spectra of theK*(892) and their decay products are compared with pion and neutral kaon production. TheK*+(892) andK*+(892) are dominantly produced by kaon fragmentation processes. The dependence of average transverse momentum vs.x for resonances has been investigated for the first time.

55 data tables

Table 1

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Inclusive Production of Anti-xi+ and $\Xi^-$ in $K^+ p$ Interactions at 32-{GeV}/c

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Chliapnikov, P.V. ; et al.

Nucl.Phys.B 176 (1980) 51, 1980.

Inspire Record 153556 DOI 10.17182/hepdata.11096

The inclusive production of Ξ + and Ξ − hyperons is investigated in K + p interactions at 32 GeV/ c . The production cross sections, 36.4±9 μ b for the Ξ + and 6.5±3 μ b for the Ξ − , are rising strongly with energy similarly to Λ and Λ production in K + p interactions. The Ξ + are produced preferentially in the forward direction in the c.m.s., while the Ξ − are produced dominantly backwards. The average transverse momenta 〈p T 〉 Ξ + =0.73±0.09 GeV /c and 〈 p T 〉 Ξ − =0.58±0.09 GeV/ c .

22 data tables

Table 1

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Table 2

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Table 3

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Study of $\rho^0$ and $\omega$ Meson Inclusive Production by 43-{GeV}/$c \pi^-$ Mesons Off Be Nuclei

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

Sov.J.Nucl.Phys. 32 (1980) 348, 1980.

Inspire Record 144637 DOI 10.17182/hepdata.11052

None

18 data tables

Table 1

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Table 2

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Table 3

PRESENTED IN PREPRINT ON FIG 3.

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Inclusive Slow Proton and $\Delta^{++}$ (1236) Resonance Production 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) 494, 1980.

Inspire Record 144016 DOI 10.17182/hepdata.18016

None

15 data tables

Table 1

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Table 2

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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

48 data tables

Table 1

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Table 2

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Table 3

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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.

12 data tables

Table 1

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J/psi Particle Production by 70-GeV/c Protons

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

Phys.Lett.B 60 (1976) 309, 1976.

Inspire Record 100281 DOI 10.17182/hepdata.6524

Invariant mass spectrum of μ + μ − pairs produced by 70 GeV/ c protons in Be target are presented. Distinct enhancements in the mass regions of ϱ, ω mesons, φ meson and J/ψ particle are observed. For J/ψ production x and p ⊥ 2 distributions are given. The total cross section for the reaction p + Be → ( J ψ → μ + μ − ) + … is equal to 9.5 ± 2.5 nb/nucleus .

5 data tables

Table 1

No description provided.

Table 2

ASSUME B.R.(MU+MU-) = 0.069.

Table 3

ASSUME A**(2/3) DEPENDENCE FOR SIGMA.

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Inclusive Production of $\Delta^{++}$(1232) and $\Sigma^\pm$(1385) in $K^+ p$ Interactions at 32-{GeV}/$c$

$J/\psi$ and $\psi^\prime$ Production in $\pi^-$ Cu Interaction at 50-{GeV}/$c$

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

Inclusive $K^$+ (892) and $K^$ (892) Production in $K^+ p$ Interactions at 32-{GeV}/c

Inclusive Production of Anti-xi+ and $\Xi^-$ in $K^+ p$ Interactions at 32-{GeV}/c

Study of $\rho^0$ and $\omega$ Meson Inclusive Production by 43-{GeV}/$c \pi^-$ Mesons Off Be Nuclei

Inclusive Slow Proton and $\Delta^{++}$ (1236) Resonance Production in $\pi^+ p$ Interactions at 32-{GeV}/$c$

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

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

J/psi Particle Production by 70-GeV/c Protons