Feb 7 – 9, 2017
Radisson Hotel Lansing
US/Eastern timezone

Neutron-gamma competition and possible impact on the r-process

Feb 9, 2017, 10:00 AM
Radisson Hotel Lansing

Radisson Hotel Lansing

111 N Grand Ave, Lansing, MI 48933
Talk [Main Conference] Contributed talk Session 9


Artemis Spyrou (NSCL/FRIB)


Beta-decay properties are important nuclear input for r-process calculations. A large number of experiments focus on the measurement of beta-decay half-lives and neutron emission probabilities. A new effort has started at the NSCL to go beyond measuring these integral quantities and investigate further the details of the beta-decay intensity distribution for r-process nuclei. This distribution depends strongly on the nuclear structure, and therefore such measurements can provide a sensitive comparison to theoretical models. Here we will report on the first measurements of beta-decay intensity in the mass region around A=70, using the technique of Total Absorption Spectroscopy. The case of 70Co will be discussed where among other surprising features, a strong neutron-gamma competition above the neutron threshold was observed. The impact on r-process calculations will also be discussed.

Primary author

Artemis Spyrou (NSCL/FRIB)

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