IONIZATION LOSS BY $mu$ MESONS IN HELIUM
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
The ionization loss by cosmic-ray mu mesons in helium gas was measured as a function of momentum. The ionization loss was determined with proportional counters and the momenta were measured by a magnetic spectrometer which resolved particles in the momentum region from 3.3 Bev/c to 140 Bev/c. It was found that helium gas at 2.7-atmospheres pressure exhihits a density-effect saturation of the most probable iorization loss and that this saturation is complete at a p/ mu c value of about 200. Under the conditions of normalization used in this experiment, the value of the ionization loss at which the Fermi plateau occurs is 1.28 the J-57 engin 0.04 times the value at the minimum. This is in agreement with calculations based on the Sternheimer theory for the particular counter filling used in this experiment. (auth)
- Research Organization:
- Yale Univ., New Haven
- NSA Number:
- NSA-13-010340
- OSTI ID:
- 4270874
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 113; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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