Ab-initio Calculations of Spectral Functions in Open-Shell Isotopes
Lead Research Organisation:
University of Surrey
Department Name: Nuclear and Radiation Physics
Abstract
Ab-initio nuclear structure has achieved outstanding results following the introduction of nuclear forces based on chiral EFT and developments in many-body theory. Methods such as Self-Consistent Green's Functions and Coupled Cluster have reached nuclei in the pf-shell. However, these applications have so far been limited to closed-shell isotopes. The present proposal requests travel funds needed to continue an on-going collaboration that addresses this issue. The project is at an advanced stage and its focus (ab-inito calculations for medium-mass open-shells) is of interest to the international theory community. Completing the project will require three trips to the CEA, Saclay, to work with collaborators and a post-doc involved. If its continuation is funded, it is plausible that it will contribute to including the UK to the list of countries active in ab-initio nuclear structure. This may add to the strong reputation in nuclear theory that the University of Surrey already has. The possibility of studying spectral functions of open-shell systems will also offer a solid theoretical support to quasi-free scattering (QSF) and knockout experiments. Several UK groups are active on these issues and there are experiments planned at international institutions such as GSI or RIKEN. Finally, the requested grant would allow me to honour my commitments in the organization of a related workshop at the ESNT of Saclay that has been already approved but for which I miss travel funding.
People |
ORCID iD |
Carlo Barbieri (Principal Investigator) |
Publications
Raimondi F
(2018)
Algebraic diagrammatic construction formalism with three-body interactions
in Physical Review C
Somà V
(2014)
Chiral two- and three-nucleon forces along medium-mass isotope chains
in Physical Review C
McIlroy C
(2018)
Doubly magic nuclei from lattice QCD forces at M PS = 469 MeV / c 2
in Physical Review C
Carbone A
(2013)
Self-consistent Green's functions formalism with three-body interactions
in Physical Review C
Atar L
(2018)
Quasifree (p, 2p) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength.
in Physical review letters
Flavigny F
(2013)
Limited asymmetry dependence of correlations from single nucleon transfer.
in Physical review letters
Lapoux V
(2016)
Radii and Binding Energies in Oxygen Isotopes: A Challenge for Nuclear Forces.
in Physical review letters
Cipollone A
(2013)
Isotopic chains around oxygen from evolved chiral two- and three-nucleon interactions.
in Physical review letters
Makek M
(2016)
Differential cross section measurement of the 12C(e,e'pp)10Beg.s. reaction
in The European Physical Journal A
Description | We have introduced novel technique to study degenerate many-body systems and applied these to atomic nuclei. e have advanced our knowledge both of exotic isotopes that are found as components of stars and of the strong nuclear interactions among hadrons. |
Exploitation Route | Advances of nuclear many-body theory can be exported to other disciplines, such as quantum chemistry. Improved knowledge of the nuclear interaction will be needed by astrophysicist to understand neutron stars, etc... |
Sectors | Other |
Description | We have introduced novel techniques to study degenerate many-body systems and applied these to atomic nuclei. These have been used to advanced our knowledge both of exotic isotopes that are found as components of stars and of the strong nuclear interactions among hadrons. |
First Year Of Impact | 2011 |
Sector | Other |
Description | Surrey-Saclay |
Organisation | Saclay Nuclear Research Centre |
Country | France |
Sector | Public |
PI Contribution | Provided codes and know-how to develop GF Gorkov formalism and implementation. |
Collaborator Contribution | Help spreading and advertise my research |
Impact | Presentation of preliminary results at conference. Grant still ongoing. Results being written up. Output will be first ab-initio calculation of fully open shells. |
Start Year | 2010 |