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Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers

[Article I: A measurement of the differential cross section for elastic pion-helium scattering at 7.76 GeV/c] Results are presented for the region of squared four-momentum transfers between −0.05 and −0.5 (GeV/c)2. The directions of the scattered pions and alpha particles were measured with spark ch...

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Detalles Bibliográficos
Autor principal: Ekelöf, T J C
Lenguaje:eng
Publicado: Uppsala Univ. 1972
Materias:
Acceso en línea:http://cds.cern.ch/record/801812
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author Ekelöf, T J C
author_facet Ekelöf, T J C
author_sort Ekelöf, T J C
collection CERN
description [Article I: A measurement of the differential cross section for elastic pion-helium scattering at 7.76 GeV/c] Results are presented for the region of squared four-momentum transfers between −0.05 and −0.5 (GeV/c)2. The directions of the scattered pions and alpha particles were measured with spark chambers and the momentum of the alphas as obtained from pulse-height and time-of-flight measurements. The results are compared with calculations from the Glauber theory, showing good agreement over the whole momentum-transfer range including the interference-dip region. [Article II:A helium-recoil spectrometer] The instrument described is intended for the detection and measurement of particles from coherent interactions of high-energy particles with 4He nuclei. It allows the determination of the magnitude and the direction of the momenta of the helium recoils from interactions in a pressurized gas target. The measurements are carried out with spark chambers and scintillation counters. Recoils emitted at angles greater than 65° with respect to the beam direction are accepted and the range of azimuth angles covered is 294°.
id cern-801812
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1972
publisher Uppsala Univ.
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spelling cern-8018122019-09-30T06:29:59Zhttp://cds.cern.ch/record/801812engEkelöf, T J CCoherent scattering of $\pi$ mesons from helium at high energies : 4 papersParticle Physics - Experiment[Article I: A measurement of the differential cross section for elastic pion-helium scattering at 7.76 GeV/c] Results are presented for the region of squared four-momentum transfers between −0.05 and −0.5 (GeV/c)2. The directions of the scattered pions and alpha particles were measured with spark chambers and the momentum of the alphas as obtained from pulse-height and time-of-flight measurements. The results are compared with calculations from the Glauber theory, showing good agreement over the whole momentum-transfer range including the interference-dip region. [Article II:A helium-recoil spectrometer] The instrument described is intended for the detection and measurement of particles from coherent interactions of high-energy particles with 4He nuclei. It allows the determination of the magnitude and the direction of the momenta of the helium recoils from interactions in a pressurized gas target. The measurements are carried out with spark chambers and scintillation counters. Recoils emitted at angles greater than 65° with respect to the beam direction are accepted and the range of azimuth angles covered is 294°.Uppsala Univ.oai:cds.cern.ch:8018121972
spellingShingle Particle Physics - Experiment
Ekelöf, T J C
Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title_full Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title_fullStr Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title_full_unstemmed Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title_short Coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
title_sort coherent scattering of $\pi$ mesons from helium at high energies : 4 papers
topic Particle Physics - Experiment
url http://cds.cern.ch/record/801812
work_keys_str_mv AT ekeloftjc coherentscatteringofpimesonsfromheliumathighenergies4papers