Speaker
Dr
Jérémy Dohet-Eraly
(TRIUMF)
Description
The recent progresses in the development of ab initio approaches makes possible the description of bound and scattering states for light nuclear systems in a unified framework, based on microscopic Hamiltonians built within chiral effective theory. Among these approaches, the No-Core Shell Model with Continuum (NCSMC) [1,2] has been proved to be particularly successful for studying resonances and elastic scattering for five- and six-nucleon systems [3,4]. The extension of this approach to the description of electromagnetic transitions in nuclear systems will be presented. This provides an interesting tool to probe the quality of the ab initio wave functions and thus of the chiral inter-nucleon interactions. I will present the application of the NCSMC approach to the radiative capture processes, in particular, to the astrophysically important $^3$He(α,γ)$^7$Be and $^3$H(α,γ)$^7$Li reactions [5]. Both reactions are essential to calculate the primordial $^7$Li abundance in the universe. Moreover, the $^3$He(α,γ)$^7$Be capture is one of the key reactions to understand the solar neutrino flux, along with the $^7$Be(p,γ)$^8$B reaction. If time allows, the $^7$Be(p,γ)$^8$B reaction will be also considered.
[1] S. Baroni, P. Navrátil, S. Quaglioni, Phys. Rev. Lett. 110, 022505 (2013).
[2] S. Baroni, P. Navrátil, S. Quaglioni, Phys. Rev. C 87, 034326 (2013).
[3] G. Hupin, S. Quaglioni, P. Navrátil, Phys. Rev. C 90 (2014) 061601(R).
[4] G. Hupin, S. Quaglioni, P. Navrátil, Phys. Rev. Lett. 114 (2015) 212502.
[5] J. Dohet-Eraly et al., arXiv:1510.07717 [nucl-th].
Primary author
Dr
Jérémy Dohet-Eraly
(TRIUMF)
Co-authors
Dr
Francesco Raimondi
(TRIUMF, University of Surrey)
Dr
Guillaume Hupin
(CEA)
Dr
Petr Navrátil
(TRIUMF)
Dr
Sofia Quaglioni
(LLNL)
Dr
Wataru Horiuchi
(Hokkaido University)
