2019 CAP Congress / Congrès de l'ACP 2019

2-7 June 2019
Simon Fraser University
America/Vancouver timezone
Welcome to the 2019 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2019 !

Nuclear kinetic density from ab initio theory

5 Jun 2019, 11:00
15m
DAC FT I (Simon Fraser University)

DAC FT I

Simon Fraser University

Oral Competition (Undergraduate Student) / Compétition orale (Étudiant(e) du 1er cycle) Nuclear Physics / Physique nucléaire (DNP-DPN)

Speaker

Michael Gennari (TRIUMF)

Description

The nuclear kinetic density is a fundamental, non-observable quantity in density functional theory (DFT) dependent on the nonlocal nuclear density. With the ability to compute the nonlocal nuclear density in the ab initio no-core shell model approach (NCSM), we may provide insights about nuclear structure by comparing center of mass (COM) removal procedures, which can improve the precision of density functionals. We derive the kinetic density from the nonlocal one-body nuclear density computed in the NCSM. We construct translational invariance in our nuclear density, and hence kinetic density, by exactly removing the spurious COM component from the NCSM eigenstates expanded in the harmonic oscillator (HO) basis. The ground state nonlocal nuclear density and kinetic density of $^{4,8}$He, $^{12}$C, and $^{16}$O are calculated to display the effects of COM removal on predicted nuclear structure. The results of this work have been published in Phys. Rev. C 99, 024305 (2019).

Primary author

Michael Gennari (TRIUMF)

Co-authors

Dr Petr Navratil (TRIUMF) Matteo Vorabbi (TRIUMF Canada's particle accelerator centre)