Many-body effects in nuclear structure

F Barranco, RA Broglia, G Colo, G Gori… - The European Physical …, 2004 - Springer
We calculate, for the first time, the state-dependent pairing gap of a finite nucleus (120 Sn)
diagonalizing the bare nucleon-nucleon potential (Argonne v 14) in a Hartree-Fock basis …

Quasiparticle renormalization and pairing correlations in spherical superfluid nuclei

A Idini, F Barranco, E Vigezzi - Physical Review C—Nuclear Physics, 2012 - APS
Within the framework of nuclear field theory (NFT), the spectrum of atomic nuclei is
described in terms of collective and quasiparticle degrees of freedom, that is, of elementary …

Interweaving of elementary modes of excitation in superfluid nuclei through particle-vibration coupling: Quantitative account of the variety of nuclear structure …

A Idini, G Potel, F Barranco, E Vigezzi, RA Broglia - Physical Review C, 2015 - APS
A complete characterization of the structure of nuclei can be obtained by combining
information arising from inelastic scattering, Coulomb excitation, and γ-decay, together with …

Results of Microscopic Self-Consistent Theory of Quasiparticle—Phonon Interaction in Nuclei

SP Kamerdzhiev, OI Achakovskiy… - Physics of Atomic …, 2019 - Springer
A self-consistent approach in the problem of taking into account quasiparticle-phonon
interaction provides a high predictive power and is free from adjustable parameters (this is of …

Unified description of structure and reactions: implementing the nuclear field theory program

RA Broglia, PF Bortignon, F Barranco, E Vigezzi… - Physica …, 2016 - iopscience.iop.org
The modern theory of the atomic nucleus results from the merging of the liquid drop model of
Niels Bohr and Fritz Kalckar, and of the shell model of Marie Goeppert Meyer and Hans …

Solution of the Dyson equation for nucleons in the superfluid phase

J Terasaki, F Barranco, RA Broglia, E Vigezzi… - Nuclear Physics A, 2002 - Elsevier
We investigate the role the interweaving of surface vibrations and nucleon motion has on
Cooper pair formation in spherical superfluid nuclei. A quantitative calculation of the state …

The role of ground state correlations in the single-particle strength of odd nuclei with pairing

AV Avdeenkov, SP Kamerdzhiev - Physics Letters B, 1999 - Elsevier
A method based on the consistent use of the Green function formalism has been developed
to calculate the distribution of the single-particle strength in odd nuclei with pairing. The …

Interaction of the single-particle and collective degrees of freedom in non-magic nuclei: The role of phonon tadpole terms

S Kamerdzhiev, EE Saperstein - The European Physical Journal A, 2008 - Springer
A method of consistent treatment of phonon contributions to the self-energy and gap terms in
non-magic nuclei is developed in so-called g 2 approximation, where g is the creation …

On the mechanisms of superfluidity in atomic nuclei

AV Avdeenkov, SP Kamerdzhiev - Journal of Experimental and …, 1999 - Springer
A system of equations is obtained for the Cooper gap in nuclei. The system takes two
mechanisms of superfluidity into account in an approximation quadratic in the phonon …

Soft modes in the proton–neutron pairing channel as precursors of deuteron condensate in N= Z nuclei

E Litvinova, C Robin, IA Egorova - Physics Letters B, 2018 - Elsevier
Relativistic nuclear response theory is formulated for the proton–neutron pairing, or
deuteron transfer, channel. The approach is based on the meson–nucleon Lagrangian of …