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

The Bonn-CERN-Ecole Poly-Glasgow-Lancaster-Manchester-Orsay-Paris-Rutherford-Sheffield collaboration Aston, D. ; Atkinson, M. ; Bailey, R. ; et al.
Nucl.Phys.B 195 (1982) 189-202, 1982.
Inspire Record 167734 DOI 10.17182/hepdata.34176

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.

4 data tables
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Study of the Scaling in the Mean and of the Associative Multiplicity in Inclusive $K^0_S$ and $\Lambda$ Production in $\bar{P} P$ Interactions at 22.4-{GeV}/c.

The Dubna-Alma Ata-Helsinki-Moscow-Prague-Tbilisi collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.
Sov.J.Nucl.Phys. 33 (1981) 373, 1981.
Inspire Record 154157 DOI 10.17182/hepdata.39558

None

33 data tables
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$\gamma$ and $\pi^0$ Production in $\bar{p} p$ Interactions at 22.4-{GeV}/$c$

The Dubna-Alma Ata-Helsinki-Moscow-Prague-Tbilisi collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.
Sov.J.Nucl.Phys. 32 (1980) 684, 1980.
Inspire Record 154051 DOI 10.17182/hepdata.18075

None

17 data tables
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Inclusive Neutron and Lambda Production in Proton Proton Interactions at 12-GeV/c and 24-GeV/c

The BONN-HAMBURG-MUNICH collaboration Blobel, V. ; Fesefeldt, H. ; Franz, H. ; et al.
Nucl.Phys.B 135 (1978) 379-404, 1978.
Inspire Record 135054 DOI 10.17182/hepdata.8290

A method for the determination of neutron spectra in a bubble chamber experiment is developed. Double differential cross sections for inclusive neutron and lambda production are presented. The n/Λ particle ratios are determined as functions of x and p T ; at p T = 0 GeV/ c they are compatible with the ratios measured in pCu interactions at 24 GeV/ c . Our neutron spectra are compared with spectra for protons produced near the direction of the incident neutron in pn interactions at FNAL and with neutron spectra measured in pp interactions at the ISR. Exchange mechanisms are studied in the framework of single diffraction dissociation and the triple-Regge model. The scattering of virtual pions and kaons on real protons is investigated.

3 data tables
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Single Particle Inclusive Spectra of Charged Particles in anti-p p Interactions at 22.4-GeV/c

The Alma Ata-Dubna-Helsinki-Kosice-Moscow-Prague collaboration Boos, E.G. ; Samoilov, V.V. ; Takibaev, Zh.S. ; et al.
Nucl.Phys.B 121 (1977) 381-392, 1977.
Inspire Record 109633 DOI 10.17182/hepdata.35465

The inclusive spectra for p p collisions at 22.4 GeV/ c are investigated. We show that the transverse momentum distributions resemble those in high-energy pp interactions and discuss the influence of annihilation processes on the p T 2 distributions. The invariant inclusive cross section for pions in the central region is found to be 28 ± 1 mb. A charge asymmetry is indicated by the y ∗ spectrum in the central region, the asymmetry parameter having the value 0.15 ± 0.01. Finally, we estimate the upper limit of the diffraction dissociation of the beam particle to be 3.68 −0.15 +0.45 mb.

10 data tables
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