Neutron-proton total cross-sections between 8 GeVc and 21 GeVc

doi:10.1016/0370-2693(70)90031-6

Physics Letters B

Volume 31, Issue 10, 11 May 1970, Pages 669-672

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Abstract

Neutron-proton total cross-sections were measured in the momentum range from 8 GeV/c to 21 GeV/c with an accuracy of better than 2% using a 0^o neutron beam at the CERN Proton Synchrotron. The np total cross-section drops from 39.7 mb at 8 GeV/c at 21 GeV/c, and thus follows closely the pp total cross-sections in this momentum interval.

References (12)

P. Sievers
thesis
(1968)
M.N. Kreisler et al.
Phys. Rev. Letters
(1968)
D.V. Bugg et al.
Phys. Rev.
(1966)
W. Galbraith et al.
Phys. Rev.
(1965)
J. Engler et al.
Phys. Letters
(1968)
P. Schludecker
thesis
(1968)
E.F. Parker et al.
Phys. Letters
(1970)

There are more references available in the full text version of this article.

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Total cross sections for $π^{−}, K^{−} and p$ on protons and deutrons have been measured in the momentum range 15 to 60 GeV/c. Total cross sections for particle interactions with neutrons have been determined with an energy dependent Glauber correction. Using the positive particle data obtained earlier with the same experimental apparatus, the differences of total cross sections for particles and antiparticles as well as for particles belonging to the same isospin multiplet have been calculated.
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^☆: We would like to thank the PS operating staff for their help, and Mr. L. Mazzone for his assistance in constructing the hydrogen target. Mr. H. Keim and Mr. K. Ratz have contributed greatly to the success of the experiment. Clarifying discussions with M. Jacob were very helpful. This work was supported by the Bundesministerium für Wissenschftliche Forschung.

^∗: Now at CERN, Geneva, Switzerland.

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Neutron-proton total cross-sections between 8 GeVc and 21 GeVc☆

Abstract

thesis

Phys. Rev. Letters

Phys. Rev.

Phys. Rev.

Phys. Letters

thesis

Phys. Letters