2015 CAP Congress / Congrès de l'ACP 2015

Session

T3-6 Nuclear Structure III (DNP) / Structures nucléaires III (DPN)

T3-6

16 Jun 2015, 15:45

University of Alberta

Conveners

T3-6 Nuclear Structure III (DNP) / Structures nucléaires III (DPN)

• Jens Dilling (triumf/UBC)

669. Beta-decay from ${}^{47}$K to ${}^{47}$Ca with GRIFFIN

Dr Jenna Smith (TRIUMF)

16/06/2015, 15:45

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Non-Student) / orale (non-étudiant)

Recent developments in many-body calculation methods have extended the application of *ab initio* interactions to medium-mass nuclei near closed shells. Detailed nuclear data from these isotopes are necessary to evaluate the many-body calculation methods and to test the predictive capacity of the interactions. ${}^{47}$Ca and ${}^{47}$K are each one nucleon removed from the doubly-magic nucleus...

584. Investigating the Structure of ${}^{46}$Ca through the ${\beta }^{-}$ Decay of ${}^{46}$K Utilizing the New GRIFFIN Spectrometer

Ms Jennifer Pore (Simon Fraser University)

16/06/2015, 16:00

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

Due to its very low natural abundance of 0.004%, the structure of the magic nucleus ${}^{46}$Ca has not been studied in great detail compared to its even-even Ca neighbors. The calcium region is currently a new frontier for modern shell model calculations based on NN and 3N forces [1,2], so detailed experimental data from these nuclei is necessary for a comprehensive understanding of the region....

671. The first GRIFFIN Experiment: An investigation of the $s$-process yields for ${}^{116}$Cd

Mr Ryan Dunlop (University of Guelph)

16/06/2015, 16:15

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

In adopted models for the $s$-process, it is assumed that helium shell flashes give rise to two neutron bursts at two different thermal energies $(kT\sim 10$ keV and $kT\sim 25$ keV). The contribution to the isotopic abundance of ${}^{116}$Cd from the higher temperature neutron bursts are calculated assuming thermal equilibrium between the ground state and the long-lived isomeric state of...

680. Gamma-Gamma Angular Correlation Measurements With GRIFFIN

Mr Andrew MacLean (University of Guelph)

16/06/2015, 16:30

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

When a excited nuclear state emits successive $\gamma$-rays in a $\gamma -\gamma$ cascade, $X^{\ast \ast }\to X^{\ast }+{\gamma }_1\to X+{\gamma }_2$ an anisotropy is found in the spatial distribution of ${\gamma }_2$ with respect to ${\gamma }_1$. By defining the direction of ${\gamma }_1$ to be the z-axis, the intermediate level, $X^{\ast }$, in general will have an uneven distribution of...

702. High-Precision Half-Life Measurements for the Superallowed ${\beta }^{+}$ emitter ${}^{10}$C

Michelle Dunlop (University of Guelph)

16/06/2015, 16:45

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

High precision measurements of superallowed Fermi beta transitions between 0${}^{+}$ isobaric analogue states allow for stringent tests of the electroweak interaction described by the Standard Model. In particular, these transitions provide an experimental probe of the unitary of the Cabibbo-Kobayashi-Maskawa (CKM) matrix, the Conserved-Vector-Current (CVC) hypothesis, as well as set limits on...

700. The First Radioactive Beam at GRIFFIN: ${}^{26}$Na for Decay Spectroscopy

Nikita Bernier (TRIUMF)

16/06/2015, 17:00

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

GRIFFIN (Gamma-Ray Infrastructure For Fundamental Investigations of Nuclei) was installed at the TRIUMF-ISAC-I facility during 2014 and represents a major upgrade to the 8$\pi$ spectrometer which operated at ISAC for the past decade. With an array of 16 large-volume hyper-pure germanium (HPGe) clover detectors, instrumented with a state-of-the-art digital data acquisition system, the array...