Formation of primary particles in stopped pion absorption reactions

• Published in: Bulletin of the Russian Academy of Sciences. Physics Vol. 80; no. 3; pp. 215 - 218
• Main Authors: Gurov, Yu. B., Korotkova, L. Yu, Lapushkin, S. V., Leonova, T. I., Pritula, R. V., Chernyshev, B. A., Shchurenkova, T. D.
• Format: Journal Article
• Language: English
• Published: New York Allerton Press 01-03-2016; Springer Nature B.V
• Subjects: Absorption; Atomic properties; Clusters; Deuterons; Femto- and Nanotechnologies” (LXV International Meeting on Nuclear Spectroscopy and the Structure of Atomic Nuclei); Hadrons; Heavy Ions; Hydrogen isotopes; Hydrogen production; Hydrogen storage; Isotopes; Nuclear Physics; Nuclear Power Engineering; Physics; Physics and Astronomy; Pions; Proceedings of the LXV International Conference “Nuclei 2015: New Horizons in Nuclear Physics; Tritons; Primary Proton; Heavy Cluster; Primary Particle; High Energy Region; Pion Absorption
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873816030163

The results from analyzing the yields of protons (
p
), deuterons (
d
), and tritons (
t
) formed in the absorption of stopped π
–
mesons by intranuclear clusters are presented. The contributions from cluster absorption to the production of hydrogen isotopes in stopped pion absorption reactions are determined. Phenomenological formulas are proposed for describing the mass number (
A
) dependences of the yields of the primary protons with ∼15% precision in the mass number range of 6 <
A
< 209 (and of the primary deuterons and tritons in the mass number range of 59 <
A
< 209). Evidence is observed of the constancy of the ratio between the elemental absorption widths for the absorption of pions by
pp
and
pn
pairs over the investigated range of mass numbers.