An estimation of the primary proton spectrum between 10 to the 12th and 10 to the 14th eVBased on measurements of unaccompanied charged hadron flux from 10 to the 11th to 10 to the 14th eV at mountain altitudes, the primary proton flux is estimated using recently determined proton-proton total cross sections from new measurements of the real part of the forward scattering amplitude at ISR, and Glauber theory to calculate proton-air inelastic cross section. The derived spectrum agrees well with extrapolation of the direct measurements below 2 times 10 to the 12th eV without change of slope.
Document ID
19790060596
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gaisser, T. K. (Franklin Institute, Bartol Research Foundation, Swarthmore Pa., United States)
Siohan, F. (NASA Goddard Space Flight Center Greenbelt, Md., United States)
Yodh, G. B. (Franklin Inst. Swarthmore, PA, United States)