Interaction Lengths of Energetic Pions and Protons in Iron
- 1 February 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 7 (3), 730-740
- https://doi.org/10.1103/physrevd.7.730
Abstract
The interaction lengths of pions and protons in iron have been measured using an ionization spectrometer composed of alternating layers of iron and plastic scintillator. These measurements cover an energy range from 9.3 to 18 GeV. The interaction lengths were determined by accurate statistical analyses of the experimental data using the maximum-likelihood method. The dependence of the interaction length on the parameters used to define an interaction was studied, and the results reported employ parameters chosen to minimize the percentage uncertainty in the interaction length. The mean interaction length of pions was found to be approximately 20% greater than that of protons. No significant dependence on the energy of the incident primary was found in the range measured. Consistency was found with the great variety of accelerator measurements made to date, all of which report greater interaction lengths than those reported by the cosmic-ray measurements.Keywords
This publication has 9 references indexed in Scilit:
- Some properties of nuclear interaction obtained with an ionization spectrometer at proton energies from 10 to 28 GeVIl Nuovo Cimento A (1971-1996), 1972
- Total cross sections of π+, K+ and p on protons and deuterons in the momentum range 15–60 GeV/cPhysics Letters B, 1971
- A Large Area High Resolution Cosmic Ray Charge Composition DetectorIEEE Transactions on Nuclear Science, 1970
- Review of Particle PropertiesReviews of Modern Physics, 1970
- Inelastic interaction cross sections for nuclear-active particles of energy 5 × 1010 to 1012 eV on carbon and iron nucleiCanadian Journal of Physics, 1968
- Lifetime of the ∑−-hyperonIl Nuovo Cimento A (1971-1996), 1968
- Proton-nuclei cross sections at 20 GeVNuclear Physics, 1966
- Total Cross Sections of Protons with Momentum Between 10 and 28 Gev/cPhysical Review Letters, 1960
- Cross-Section Measurement near 50 BevPhysical Review B, 1957