Study of the temporal characteristics of the decay of nuclear chronometers in order to clarify the age of astrophysical objects

1Doroshko, NL, 1Dolinskaya, ME, 1Olkhovsky, VS, 1Maydanyuk, SP
1Institute for Nuclear Research of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
Kosm. nauka tehnol. 2002, 8 ;(Supplement2):266-273
Publication Language: Russian
A new algorithm is proposed for determining the characteristic energy distribution functions, decay probabilities, decay intensities and lifetimes of excited states. A quantum-mechanical justification is given for the need to revise the temporal characteristics of the chronometer cores. Calculations were carried out for specific cases of the decay of excited 238U, 232Th, 235U nuclei at room and at stellar temperatures with and without consideration of the Doppler effect.

1. Olkhovsky V. S., Grantsev V. I. Prepr. National Academy of Sciences of Ukraine. Institute for Nuclear Research; KINR-98-1, 8 p. (Kyiv, 1998).
2. Krylov N. S., Fock V. A. In: ZhJeTF, 17 (2), 93–107 (1947) [in Russian].
3. Olkhovsky V. S. In: . Izv. AN SSSR. Ser. fiz., 49 (5), 938–944 (1985) [in Russian].
4. Thieberger P., Moragues J. A., Sunyar A. W. In: Phys. Rev., 171 (2), 425–435 (1968).