Accession Number:

AD0766407

Title:

Some Effects of Delayed-Neutron Emission on r-Process Abundances.

Descriptive Note:

Rept. for Jan-Apr 73,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s):

Report Date:

1973-09-28

Pagination or Media Count:

23.0

Abstract:

Some effects on elemental abundances resulting from delayed-neutron emission during the beta decay back to the valley of stability from the r-process nucleosynthetic path are examined. It is found that delayed-neutron emission results in a skewing of the r-process abundance peaks, with a more rapid falloff on the high mass side and a broader low mass side than would otherwise occur. The location of the maximum is essentially unchanged but the peak is flattened. Skewed peaks are indeed observed in the empirical r-process abundances. Furthermore the reduced odd-even abundance variations observed in the r-process peaks can be due, at least in part, to the smoothing effect of delayed-neutron emission. Delayed-neutron emission does not result in an abundance hump in the rare-earth region. Author

Subject Categories:

  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE