Title of article
Influence of physical and chemical environments on the decay rates of 7Be and 40K
Author/Authors
E.B Norman، نويسنده , , G.A Rech، نويسنده , , E Browne، نويسنده , , R.-M Larimer، نويسنده , , M.R Dragowsky، نويسنده , , Y.D Chan، نويسنده , , M.C.P Isaac، نويسنده , , R.J McDonald، نويسنده , , John A.R. Smith، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
8
From page
15
To page
22
Abstract
We measured the electron-capture decay rate of 7Be implanted into hosts of graphite, boron nitride, tantalum, and gold. We have found that this decay rate varies by as much as 0.38% from one host to another. We also measured the electron-capture decay rate of 40K in four different chemical compounds and as both a solid and dissolved in solution. To within our measurement precision of ±1%, we have found no influence of the environment on the 40K decay rate. The implications of these results for the solar neutrino problem and for potassium/argon dating are discussed.
Keywords
Gamma-ray spectroscopy , 7Be , 40K , Electron-capture decay
Journal title
PHYSICS LETTERS B
Serial Year
2001
Journal title
PHYSICS LETTERS B
Record number
914822
Link To Document