Potassium-40 - Wikipedia
网页Potassium-40 undergoes three types of radioactive decay. In about 89.28% of events, it decays to calcium-40 (40 Ca) with emission of a beta particle (β −, an electron) with a maximum energy of 1.31 MeV and an antineutrino.
Phys. Rev. Lett. 131, 052503 (2023) - Rare $^ {40}\mathrm {K}$ Decay …
网页2023年7月31日 · A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. The KDK (potassium decay) collaboration reports strong evidence of this rare decay mode. A blinded analysis reveals a nonzero ratio of intensities of ground-state electron-captures ( ) over excited-state ones ( ) of (68% C.L.), with the null ...
[2211.10319] Rare $^{40}$K decay with implications for …
网页2022年11月18日 · A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. The KDK (potassium decay) collaboration reports strong evidence of this rare decay mode.
Isotope data for potassium-40 in the Periodic Table
网页Show only decays with probability >0.1%. Click any isotope in diagram to see its data. Detailed decay information for the isotope potassium-40 including decay chains and daughter products.
Potassium-40 - radioactivity.eu.com
网页Potassium-40 has two decay channels open. The beta-minus decay channel leading to calcium-40 is by far the most frequent. Decays leading to argon-40 by electronic capture occurs at a 11 % rate. Remarkable also is the K-40 very long half-life of 1,251 billion years, exceptional for a beta decay.
Rare 40K decay with implications for fundamental physics and ...
网页2023年7月31日 · A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. The KDK (potassium decay) collaboration reports strong evidence of this rare decay mode. A blinded analysis reveals a nonzero ratio of intensities of ground-state electron-captures (IEC0) over excited-state ones (IEC∗) of IEC0/IEC∗=0 ...
Evidence for ground-state electron capture of $^{40}\\mathrm{K}$
网页2023年7月31日 · Potassium-40 (${}^{40}$K) is a long-lived, naturally occurring radioisotope whose decay properties impact geochronology as well as rare-event searches. The KDK Collaboration reports first experimental evidence for the existence of the very rare electron-capture branch from ${}^{40}$K to the ground state of …
Rare K40 Decay with Implications for Fundamental Physics and ...
网页2023年7月31日 · A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. Here, the KDK (potassium decay) collaboration reports strong evidence of this rare decay mode.
(PDF) Rare K 40 Decay with Implications for Fundamental
网页2023年7月31日 · A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. The KDK (potassium decay) collaboration reports strong evidence of this rare decay mode.
13: The K40 decay chain. (Dentith and Mudge, 2015, p.199).
网页With the mineral industry's increasing reliance on radiometrics, the addition of supplementary enhancement techniques that aid interpretation would be bene... Download scientific diagram | 13: The...
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