HEPData Search

Results are presented on the inclusive photoproduction of λ and λ for incident photon energies between 25 and 70 GeV. The slope parameter of the p T 2 distribution is found to be 2.83±0.1 GeV −2 for λ and 3.28±0.25 GeV −2 for λ . The x F distributions, measured in the range −0.2 to 0.7, show that while λ are produced centrally, λ production extends to more negative values of x F ; the shapes show no energy dependence and are similar to those in pion-induced reactions. The polarization of the produced λ is less than 10%. The results are discussed in terms of vector dominance and quark fusion models.

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A Study of Multiparticle Fragmentation in $K^+ p$ Interactions at 32-{GeV}/$c$

The CERN-Soviet collaboration De Wolf, E.A. ; Dumont, J.J. ; Verbeure, F. ; et al.

Z.Phys.C 12 (1982) 105, 1982.

Inspire Record 169082 DOI 10.17182/hepdata.41344

Results are presented on inclusive production of resonant and non-resonant particle systems produced inK+p interactions at 32 GeV/c. We compareK*+(892),$\bar \Sigma ^{ *- } $(1385), Σ*±(1385), and ϱ0 inclusivex-spectra with the ones of non-resonantKs0π±,$\bar \Lambda \pi ^ -$, Λπ± and π+π− pairs at the same effective mass. Resonance-particle pairsK*+π±, Σ*+π−, and$\bar \Sigma ^{ *- } \pi ^ -$ are also studied together with non-resonant tripletsKs0π±, Λπ+π−,$\bar \Lambda \pi ^ -\pi ^ -$. The invariantx-spectra of resonant particle pairs decrease less rapidly withx then the corresponding non-resonant pairs. Comparison with quark-recombination predictions indicates that the particles, resonances and multiparticle systems are probably created off a single valence quark or diquark instead of carrying all possible valence-quarks.

19 data tables

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PHOTON AND pi0 MESON INCLUSIVE PRODUCTION IN 32-GeV/c K- p INTERACTIONS

Borovikov, A.A. ; Bryukhanova, T.M. ; Galyaev, N.A. ; et al.

IFVE-81-113, 1981.

Inspire Record 168437 DOI 10.17182/hepdata.41429

None

6 data tables

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EXCLUSIVE REACTIONS IN pi+ p INTERACTIONS AT 32-GeV/c

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Borovikov, A.A. ; et al.

Sov.J.Nucl.Phys. 34 (1981) 821, 1981.

Inspire Record 165497 DOI 10.17182/hepdata.41255

None

19 data tables

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GENERAL FEATURES AND CLUSTER - LIKE PROPERTIES OF REACTION K+ p ---> K+ p 2 pi+ 2 pi- AT 32-GeV/c

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

Sov.J.Nucl.Phys. 34 (1981) 584, 1981.

Inspire Record 165495 DOI 10.17182/hepdata.10705

None

58 data tables

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Two Particle Production in $K^+ p$ Interactions at 32-{GeV}/$c$

The CERN-Soviet & French-Soviet collaborations De Wolf, E.A. ; Dumont, J.J. ; Immerseel, M.Van ; et al.

Z.Phys.C 8 (1981) 189, 1981.

Inspire Record 159285 DOI 10.17182/hepdata.11046

Results are presented on two-particle inclusive production inK+p interactions at 32 GeV/c. We study thex1,2=x1+x2 dependence of invariant structure functions of (ππ)-pairs and compare them to single particle inclusive distributions in the fragmentation regions. Distributions of particles observed at Feynmanx2 in association with various “trigger” particles or systems atx1 in the same hemisphere are dicussed in terms of the reduced variable$\tilde x_2= x_2 /(1 - |x_1 |)$. We further present absolute production rates and production ratios of π+'s and π−'s associated with π±,Ks0, Λ,$\bar \Lambda $,K*+ (890), (Ks0π+), and (π+ π−)-triggers, and compare them with qualitative predictions of the quark recombination model. Forwardbackward correlations between (Ks0π±), (Ks0,p), (Λ, π−),$(\bar \Lambda \pi ^ \pm)$, and (p, π−) pairs are also discussed.

26 data tables

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Reactions With Two Neutral Kaons Inclusive Production in $K^+ p$ Interactions at 32-{GeV}/$c$

A Study of Inclusive $\phi$ Meson Production in Association With Other Particles in $K^+ p$ Reactions at 32-{GeV}/$c$

A STUDY OF DELTA++ AND DELTA0 ISOBAR INCLUSIVE PRODUCTION IN K- p INTERACTIONS AT 32-GeV/c

OBSERVATION OF SIGMA*+ (1385) rho0 (770) NARROW BOUND STATE WITH MASS 2.26-GeV +- 0.02-GeV IN K- p INTERACTIONS AT 32-GeV/c

Inclusive Production of Lambdas and Anti-lambdas in $\gamma p$ Interactions for Photon Energies Between 25-{GeV} and 70-{GeV}

A Study of Multiparticle Fragmentation in $K^+ p$ Interactions at 32-{GeV}/$c$

PHOTON AND pi0 MESON INCLUSIVE PRODUCTION IN 32-GeV/c K- p INTERACTIONS

EXCLUSIVE REACTIONS IN pi+ p INTERACTIONS AT 32-GeV/c

GENERAL FEATURES AND CLUSTER - LIKE PROPERTIES OF REACTION K+ p ---> K+ p 2 pi+ 2 pi- AT 32-GeV/c

Two Particle Production in $K^+ p$ Interactions at 32-{GeV}/$c$