[Triumf-seminars] TRIUMF Theory Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Tue 2018-06-26 at 13:00

Location:  Theory Room         

Speaker:   Praveen Srivastava (Indian Institute of Technology Roorkee)

Title:     Ab initio shell-model study of nuclear observables

Abstract: In this talk I will present first ab initio shell-model results of electromagnetic properties [1], GT strengths [2],  spectroscopic factor strengths [3], and beta decay half-lives [4] of sd shell nuclei using valence-space Hamiltonians derided from two ab initio approaches: the in-medium similarity renormalisation group (IM-SRG) and the coupled-cluster effective interaction (CCEI). Results are in reasonable agreement with the available experimental data as well as with the results from the phenomenological USDB effective interaction.  At the end I will also discuss some results of O and F isotopes using no core shell model.

[1]  A. Saxena and P.C. Srivastava, First-principles results for electromagnetic properties of sd shell nuclei, Phys. Rev. C 96, 024316 (2017)

[2]  A. Saxena, P.C. Srivastava and T. Suzuki, Ab initio calculations of Gamow- Teller strengths in the sd shell, Phys. Rev. C 97, 024310 (2018).

[3]  P.C. Srivastava and V. Kumar, Spectroscopic factor strengths using ab initio approaches, Phys. Rev. C 94, 064306 (2016). 

[4] Anil Kumar, P.C. Srivastava and T.Suzuki, Ab initio results of nuclear beta - decay half-lives of sd shell nuclei (in preparation).



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