Equilibration of (Lu-176)g, M during the s-process

Details Equilibration of (Lu-176)g, M during the s-process Equilibration of (Lu-176)g, M during the s-process

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...291..834n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 291, April 15, 1985, p. 834-837. Research supported by the U.S. Department

Physics

12

Atomic Excitations, Lutetium Isotopes, Nuclear Fusion, Positron Annihilation, Thermodynamic Equilibrium, Branching (Physics), Electron States, Ground State, Nuclear Spin, Scattering Cross Sections

Scientific paper

The effects of photoexcitation and positron annihilation-excitation of 176Lug to 176Lum have been investigated. It is found that as a result of these two processes alone, 176Lug and 176Lum are in thermal equilibrium at temperatures ≥3.5×108K. This implies that 176Lu is not a reliable s-process chronometer.

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