D. Lascar

First Results from the CARIBU Facility: Mass Measurements on the r-Process Path

The Canadian Penning Trap mass spectrometer has made mass measurements of 33 neutron-rich nuclides provided by the new Californium Rare Isotope Breeder Upgrade facility at Argonne National Laboratory. The studied region includes the 132Sn double shell closure and ranges in Z from In to Cs, with Sn isotopes measured out to A=135, and the typical measurement precision is at the 100 ppb level or better. The region encompasses a possible major waiting point of the astrophysical r process, and the impact of the masses on the r process is shown through a series of simulations. These first-ever simulations with direct mass information on this waiting point show significant increases in waiting time at Sn and Sb in comparison with commonly used mass models, demonstrating the inadequacy of existing models for accurate r-process calculations.

Double- β -decay Q values of Te 130 , Te 128 , and Te 120

The double-

Mass measurements near the r-process path using the Canadian Penning Trap mass spectrometer

\ensuremath{\beta}

Precision mass measurements of

-decay

^{125 – 127}

Q

Cd isotopes and isomers approaching the N = 82 closed shell

values of

Quantification of the Electron Plasma in TItan's Cooler Penning Trap

^{130}\mathrm{Te}

Studies of neutron-rich nuclei using the CPT mass spectrometer at CARIBU

,

Precision Mass Measurements of Heavy 252Cf Fission Fragments Near the r-process Path

^{128}\mathrm{Te}

Double-beta decay Q values of Te-13-, Te-128, and Te-120

, and