[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Thu 2017-03-02 at 14:00

Location:  Auditorium          

Speaker:   Heiko Hergert (MSU)

Title:     Frontiers in Nuclear Structure Theory

Abstract: Efforts to describe nuclear structure and dynamics ab initio, i.e., from first principles, have made tremendous progress in recent years. Exact methods for light nuclei are now able to include continuum degrees of freedom and treat structure and reactions on the same footing. Moreover, computationally  efficient many-body methods like Coupled Cluster (CC) [1,2], Self-Consistent Greens Function (SCGF) theory [3], and the In-Medium Similarity Renormalization Group (IMSRG) [4-6] are nowadays routinely applied for nuclei in the pf shell and beyond [2]. These developments make it possible to confront modern nuclear interactions and currents that are rooted in Quantum Chromodynamics with a wealth of existing and forthcoming experimental data. 

I will present recent results for ground- and excited state observables, and discuss their implications for the used methods and interactions. I will then look ahead at efforts to refine the input interactions and currents, expand the capabilities for computing transitions and response functions, and develop computational tools that are necessary for a controlled description of heavy 
open-shell nuclei. These developments will allow us to support the experimental push towards exotic nuclei, e.g., by studying the evolution of nuclear properties  from the proton to the neutron drip lines, and to contribute to major  fundamental symmetry experiments like searches for neutrinoless double beta decay or permanent electric dipole moments.


1.	G. Hagen et al., Phys. Scr. 91, 063006 (2016)
2.	S. Binder et al., Phys. Lett. B 736, 119 (2014)
3.	V. Soma et al., Phys. Rev. C 89, 061301 (2014)
4.	HH et al., Phys. Rept. 621, 165 (2016)
5.	HH, Phys. Scr. 92, 023002 (2017)
6.	S. R. Stroberg et al., Phys. Rev. Lett. 118, 032502 (2017) 




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