Improved cross section calculations for astrophysical applications

Modifications are proposed for the semiempirical equations and parameters of Silberberg and Tsao (1973) for partial cross section calculations of proton-nucleus reactions in cosmic rays. These modifications include: adjustment of general parameters; modification of energy dependence; effects of nucl...

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Veröffentlicht in:	Astrophys. J., Suppl. Ser.; (United States) Suppl. Ser.; (United States), 1985-08, Vol.58 (4), p.873-881
Hauptverfasser:	Silberberg, R., Tsao, C. H., Letaw, J. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	640101 - Astrophysics & Cosmology- Cosmic Radiation 653003 - Nuclear Theory- Nuclear Reactions & Scattering Astronomy Astrophysics CARBON ISOTOPES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COSMIC NUCLEI COSMIC RADIATION Cosmic rays CROSS SECTIONS DATA Earth, ocean, space ELEMENT ABUNDANCE Exact sciences and technology GOLD ISOTOPES INFORMATION IONIZING RADIATIONS IRON ISOTOPES ISOTOPES NEON ISOTOPES NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS NUCLEI NUMERICAL DATA OXYGEN ISOTOPES RADIATIONS Solar system SPALLATION THEORETICAL DATA
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Beschreibung
Zusammenfassung:	Modifications are proposed for the semiempirical equations and parameters of Silberberg and Tsao (1973) for partial cross section calculations of proton-nucleus reactions in cosmic rays. These modifications include: adjustment of general parameters; modification of energy dependence; effects of nuclear alpha-particle structure, deuteron emission, and even-charged products; peripheral reactions; fission reactions; averaging cross sections near boundaries of different parameters; elimination of certain special cases; and treatment of the Pt to Pb group that cannot yet be generalized to Z(t) less than 76.
ISSN:	0067-0049 1538-4365
DOI:	10.1086/191058