Spontaneous pion emission as a new natural radioactivity

Journal Article · Wed Oct 15 00:00:00 EDT 1986 · Ann. Phys. (N.Y.); (United States)

DOI:https://doi.org/10.1016/0003-4916(86)90001-1· OSTI ID:5081310

Ion, D B; Ivascu, M; Ion-Mihai, R

In this paper the pionic nuclear radioactivity or spontaneous pion emission by a nucleus from its ground state is investigated. The Q/sub ..pi../-values as well as the statistical factors are calculated using the experimental masses tabulated by Wapstra and Audi. Then it was shown that the pionic radioactivity of the nuclear ground state is energetically possible via three-body channels for all nuclides with Z>80. This new type of natural radioactivity is statistically favored especially for Z = 92-106 for which F/sub ..pi..//F/sub S//sub F/ = 40-200 (MeV)/sup 2/. Experimental detection of the neutral pion and also some possible emission mechanisms are discussed.

• Research Organization: Institute for Physics and Nuclear Engineering, Bucharest, P.O. Box MG-6, Romania
• OSTI ID: 5081310
• Journal Information: Ann. Phys. (N.Y.); (United States), Vol. 171:2
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
DECAY
PIONS
EMISSION
RADIOACTIVITY
GROUND STATES
Q-VALUE
BOSONS
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
HADRONS
HEAVY NUCLEI
MESONS
NUCLEI
PSEUDOSCALAR MESONS
653005* - Nuclear Theory- Radioactive Decay
652012 - Nuclear Properties & Reactions
A=220 & above
Theoretical- Radioactive Decay- (-1987)