Spontaneous pion emission as a new natural radioactivity

✍ Scribed by D.B Ion; M Ivascu; R Ion-Mihai

• Book ID: 102987808
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 746 KB
• Volume: 171
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1016/0003-4916(86)90001-1

✦ Synopsis

In this paper the pionic nuclear radioactivity or spontaneous pion emission by a nucleus from its ground state is investigated. The Q,-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 2 > 80. This new type of natural radioactivity is statistically favored especially for 2 = 92 ~ 106 for which F,/F,, = 40 -200 [MeV]*. Experimental detection of the neutral pion and also some possible emission mechanisms are discussed.