34 Result(s)
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Article
A new method for the measurement of spallogenic53Mn by neutron activation
Des recherches précises sur les noyaux de spallation de longue période et extrémement peu abondants, produits par l'interaction de rayons cosmiques et de matières exposées, sont d'un grand intérêt pour la géo ...
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Article
A neutron activation technique for the isotopic analysis of rhenium in the subnanogram-region
On applique l'activation neutronique aux mesures d'abondance isotopique du rhénium dans les matériaux lunaires. On y parvient en comparant les activités induites par (n, γ) de186Re et188Re au moyen des raies γ de...
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Article
Determination of227Ac in geological materials through neutron activation and alpha-spectrometric assay of induced228Th
A new route has been developed for the micro-determination of227Ac in geological materials by neutron activation. The method is based on intense neutron irradiation of the analysed samples followed by separation ...
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Article
Computer assisted multielement analysis of terrestrial and extraterrestrial materials and studies on long-lived cosmogenic53Mn by neutron activation
In a large number of alpine rocks and respective mineral separates the beryllium distribution was studied via “non-destructive” photon activation. The detection limit of the assembly was ∼20 ppb. The existence...
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Article
Proton-induced reactions on nickel with energies between 12 and 45 MeV
For Nickel, an element of cosmochemical interest, proton induced reactions have been studied in the energy region from 12 to 45 MeV. The excitation functions for the production of61Cu,56Ni,57Ni,55Co,56Co,57Co,58m
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Article
Neutral strange particle production in proton-proton collisions at \(\sqrt s = 63\) GeV
The inclusive cross section for the production ofK s 0 mesons, Λ and
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Article
Associated π0 production in events with a particle of high transverse momentum at \(\sqrt s\) =63 Gev
Events with a single highp T charged particle were recorded with the Split-Field-Magnet Detector in proton-proton collisions at the CERN-ISR. In the jet opposite to the trigger...
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Article
Flavour tagging of parton jets and separation of parton subprocesses in hard proton-proton collisions at the ISR
High energy proton-proton interactions yielding a single trigger particle with large transverse momentum give rise to a four-jet event structure with two transverse jets and two jets along the beam direction. ...
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Article
Highp T hadrons as leading particles in jets produced at the ISR
The density of charged particles near a single highp T trigger particle in proton-proton collisions has been studied with the SFM detector at the CERN-ISR. It is shown that:—th...
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Article
The four-jet structure of large transverse momentum events inpp interactions at the ISR
Deep inelastic proton-proton collisions have been recorded with the Split-Field-Magnet Detector (SFM) at the CERN Intersecting Storage Rings (ISR) by triggering on a single particle at high transverse momentum...
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Article
Two-particle rapidity correlations in αα, αp, andp p interactions at the CERN intersecting storage rings
Two-particle rapidity correlations have been studied for αα, αp, andp p interactions at the CERN ISR using the Split-Field Magnet (SFM) detector. In order to isolate the true two-particle correlations, the analys...
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Article
InclusiveΔ ++ inpp interactions at ISR energies
Inclusive cross sections forΔ ++ production inpp interactions at different ISR energies are presented. The differential cross sectiondσ/dx forΔ ++ production is found to be approximately independent of Feynmanx. ...
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Article
Gluon tagging in hard proton-proton interactions at the ISR
Events obtained by triggering on a single particle with high transverse momentump T show a four-jet structure. The two transverse jets are due to the fragmentation of point-lik...
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Article
Charged particle spectra in αα and αp collisions at the CERN ISR
Momenta of charged particles produced in inelastic αα, αp, andpp collisions were measured using the Split-Field-Magnet detector at the CERN Intersecting Storage Rings. Inclusive and semi-in-clusive spectra are pr...
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Article
A diquark scattering model for highp T proton production inpp collisions at the ISR
The relative yield of high transverse momentum protons measured inpp interctions at the CERN ISR is calculated in the framework of simple parton models. Whereas models based exclusively on quark and gluon scatter...
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Article
Nuclear stop** power in αα anddd collisions
Inelasticαα anddd collisions were studied at a centre-of-mass energy √S NN=31.2 GeV per nucleon-nucleon collision, using the Split-Field Magnet (SFM) detector at the CERN ISR. In this paper we show the inclusive ...
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Article
Evidence for directp p interactions in the fragmentation channelp +α →p + pX at √s=88 GeV
We have investigated kinematical correlations between the outgoing beam proton and the proton emerging from the fragmentingα-particle inpα collisions at ...
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Article
Production of thef 0 meson in the Double Pomeron Exchange reactionpp→ppπ+π−
Data are presented for the exclusive reaction pp → pp π+ π− at \(\sqrt s = 62GeV\) with two leading protons at larg...
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Article
Many-particle rapidity correlations in light-ion interactions at the CERN intersecting storage rings
Many-particle rapidity correlations have been studied for αα,dd, andpp interactions at the CERN Intersecting Storage Rings using the Split-Field Magnet detector, and basing the investigating on the distributions ...
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Article
Composition of particles emitted at largep T and medium angles inpp, dd, andαα collisions at the CERN intersecting storage rings
The relative yields of kaons and protons compared with the yield of pions at highp T and polar angles θ away from 90° (in the range from 10° to 45°) are presented forpp, dd, an...
